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4484 lines
116 KiB
4484 lines
116 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
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* fs/f2fs/super.c |
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* |
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* Copyright (c) 2012 Samsung Electronics Co., Ltd. |
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* http://www.samsung.com/ |
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*/ |
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <linux/fs.h> |
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#include <linux/statfs.h> |
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#include <linux/buffer_head.h> |
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#include <linux/backing-dev.h> |
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#include <linux/kthread.h> |
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#include <linux/parser.h> |
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#include <linux/mount.h> |
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#include <linux/seq_file.h> |
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#include <linux/proc_fs.h> |
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#include <linux/random.h> |
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#include <linux/exportfs.h> |
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#include <linux/blkdev.h> |
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#include <linux/quotaops.h> |
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#include <linux/f2fs_fs.h> |
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#include <linux/sysfs.h> |
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#include <linux/quota.h> |
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#include <linux/unicode.h> |
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#include <linux/part_stat.h> |
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#include <linux/zstd.h> |
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#include <linux/lz4.h> |
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|
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#include "f2fs.h" |
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#include "node.h" |
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#include "segment.h" |
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#include "xattr.h" |
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#include "gc.h" |
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|
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#define CREATE_TRACE_POINTS |
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#include <trace/events/f2fs.h> |
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|
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static struct kmem_cache *f2fs_inode_cachep; |
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|
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#ifdef CONFIG_F2FS_FAULT_INJECTION |
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|
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const char *f2fs_fault_name[FAULT_MAX] = { |
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[FAULT_KMALLOC] = "kmalloc", |
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[FAULT_KVMALLOC] = "kvmalloc", |
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[FAULT_PAGE_ALLOC] = "page alloc", |
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[FAULT_PAGE_GET] = "page get", |
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[FAULT_ALLOC_NID] = "alloc nid", |
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[FAULT_ORPHAN] = "orphan", |
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[FAULT_BLOCK] = "no more block", |
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[FAULT_DIR_DEPTH] = "too big dir depth", |
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[FAULT_EVICT_INODE] = "evict_inode fail", |
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[FAULT_TRUNCATE] = "truncate fail", |
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[FAULT_READ_IO] = "read IO error", |
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[FAULT_CHECKPOINT] = "checkpoint error", |
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[FAULT_DISCARD] = "discard error", |
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[FAULT_WRITE_IO] = "write IO error", |
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}; |
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|
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void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate, |
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unsigned int type) |
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{ |
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struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info; |
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|
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if (rate) { |
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atomic_set(&ffi->inject_ops, 0); |
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ffi->inject_rate = rate; |
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} |
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|
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if (type) |
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ffi->inject_type = type; |
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|
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if (!rate && !type) |
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memset(ffi, 0, sizeof(struct f2fs_fault_info)); |
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} |
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#endif |
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|
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/* f2fs-wide shrinker description */ |
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static struct shrinker f2fs_shrinker_info = { |
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.scan_objects = f2fs_shrink_scan, |
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.count_objects = f2fs_shrink_count, |
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.seeks = DEFAULT_SEEKS, |
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}; |
|
|
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enum { |
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Opt_gc_background, |
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Opt_disable_roll_forward, |
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Opt_norecovery, |
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Opt_discard, |
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Opt_nodiscard, |
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Opt_noheap, |
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Opt_heap, |
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Opt_user_xattr, |
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Opt_nouser_xattr, |
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Opt_acl, |
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Opt_noacl, |
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Opt_active_logs, |
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Opt_disable_ext_identify, |
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Opt_inline_xattr, |
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Opt_noinline_xattr, |
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Opt_inline_xattr_size, |
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Opt_inline_data, |
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Opt_inline_dentry, |
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Opt_noinline_dentry, |
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Opt_flush_merge, |
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Opt_noflush_merge, |
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Opt_nobarrier, |
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Opt_fastboot, |
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Opt_extent_cache, |
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Opt_noextent_cache, |
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Opt_noinline_data, |
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Opt_data_flush, |
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Opt_reserve_root, |
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Opt_resgid, |
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Opt_resuid, |
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Opt_mode, |
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Opt_io_size_bits, |
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Opt_fault_injection, |
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Opt_fault_type, |
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Opt_lazytime, |
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Opt_nolazytime, |
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Opt_quota, |
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Opt_noquota, |
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Opt_usrquota, |
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Opt_grpquota, |
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Opt_prjquota, |
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Opt_usrjquota, |
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Opt_grpjquota, |
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Opt_prjjquota, |
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Opt_offusrjquota, |
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Opt_offgrpjquota, |
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Opt_offprjjquota, |
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Opt_jqfmt_vfsold, |
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Opt_jqfmt_vfsv0, |
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Opt_jqfmt_vfsv1, |
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Opt_whint, |
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Opt_alloc, |
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Opt_fsync, |
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Opt_test_dummy_encryption, |
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Opt_inlinecrypt, |
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Opt_checkpoint_disable, |
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Opt_checkpoint_disable_cap, |
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Opt_checkpoint_disable_cap_perc, |
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Opt_checkpoint_enable, |
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Opt_checkpoint_merge, |
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Opt_nocheckpoint_merge, |
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Opt_compress_algorithm, |
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Opt_compress_log_size, |
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Opt_compress_extension, |
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Opt_nocompress_extension, |
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Opt_compress_chksum, |
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Opt_compress_mode, |
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Opt_compress_cache, |
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Opt_atgc, |
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Opt_gc_merge, |
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Opt_nogc_merge, |
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Opt_err, |
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}; |
|
|
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static match_table_t f2fs_tokens = { |
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{Opt_gc_background, "background_gc=%s"}, |
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{Opt_disable_roll_forward, "disable_roll_forward"}, |
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{Opt_norecovery, "norecovery"}, |
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{Opt_discard, "discard"}, |
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{Opt_nodiscard, "nodiscard"}, |
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{Opt_noheap, "no_heap"}, |
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{Opt_heap, "heap"}, |
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{Opt_user_xattr, "user_xattr"}, |
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{Opt_nouser_xattr, "nouser_xattr"}, |
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{Opt_acl, "acl"}, |
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{Opt_noacl, "noacl"}, |
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{Opt_active_logs, "active_logs=%u"}, |
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{Opt_disable_ext_identify, "disable_ext_identify"}, |
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{Opt_inline_xattr, "inline_xattr"}, |
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{Opt_noinline_xattr, "noinline_xattr"}, |
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{Opt_inline_xattr_size, "inline_xattr_size=%u"}, |
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{Opt_inline_data, "inline_data"}, |
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{Opt_inline_dentry, "inline_dentry"}, |
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{Opt_noinline_dentry, "noinline_dentry"}, |
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{Opt_flush_merge, "flush_merge"}, |
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{Opt_noflush_merge, "noflush_merge"}, |
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{Opt_nobarrier, "nobarrier"}, |
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{Opt_fastboot, "fastboot"}, |
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{Opt_extent_cache, "extent_cache"}, |
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{Opt_noextent_cache, "noextent_cache"}, |
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{Opt_noinline_data, "noinline_data"}, |
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{Opt_data_flush, "data_flush"}, |
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{Opt_reserve_root, "reserve_root=%u"}, |
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{Opt_resgid, "resgid=%u"}, |
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{Opt_resuid, "resuid=%u"}, |
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{Opt_mode, "mode=%s"}, |
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{Opt_io_size_bits, "io_bits=%u"}, |
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{Opt_fault_injection, "fault_injection=%u"}, |
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{Opt_fault_type, "fault_type=%u"}, |
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{Opt_lazytime, "lazytime"}, |
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{Opt_nolazytime, "nolazytime"}, |
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{Opt_quota, "quota"}, |
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{Opt_noquota, "noquota"}, |
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{Opt_usrquota, "usrquota"}, |
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{Opt_grpquota, "grpquota"}, |
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{Opt_prjquota, "prjquota"}, |
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{Opt_usrjquota, "usrjquota=%s"}, |
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{Opt_grpjquota, "grpjquota=%s"}, |
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{Opt_prjjquota, "prjjquota=%s"}, |
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{Opt_offusrjquota, "usrjquota="}, |
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{Opt_offgrpjquota, "grpjquota="}, |
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{Opt_offprjjquota, "prjjquota="}, |
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{Opt_jqfmt_vfsold, "jqfmt=vfsold"}, |
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{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"}, |
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{Opt_jqfmt_vfsv1, "jqfmt=vfsv1"}, |
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{Opt_whint, "whint_mode=%s"}, |
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{Opt_alloc, "alloc_mode=%s"}, |
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{Opt_fsync, "fsync_mode=%s"}, |
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{Opt_test_dummy_encryption, "test_dummy_encryption=%s"}, |
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{Opt_test_dummy_encryption, "test_dummy_encryption"}, |
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{Opt_inlinecrypt, "inlinecrypt"}, |
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{Opt_checkpoint_disable, "checkpoint=disable"}, |
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{Opt_checkpoint_disable_cap, "checkpoint=disable:%u"}, |
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{Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"}, |
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{Opt_checkpoint_enable, "checkpoint=enable"}, |
|
{Opt_checkpoint_merge, "checkpoint_merge"}, |
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{Opt_nocheckpoint_merge, "nocheckpoint_merge"}, |
|
{Opt_compress_algorithm, "compress_algorithm=%s"}, |
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{Opt_compress_log_size, "compress_log_size=%u"}, |
|
{Opt_compress_extension, "compress_extension=%s"}, |
|
{Opt_nocompress_extension, "nocompress_extension=%s"}, |
|
{Opt_compress_chksum, "compress_chksum"}, |
|
{Opt_compress_mode, "compress_mode=%s"}, |
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{Opt_compress_cache, "compress_cache"}, |
|
{Opt_atgc, "atgc"}, |
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{Opt_gc_merge, "gc_merge"}, |
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{Opt_nogc_merge, "nogc_merge"}, |
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{Opt_err, NULL}, |
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}; |
|
|
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void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...) |
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{ |
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struct va_format vaf; |
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va_list args; |
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int level; |
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|
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va_start(args, fmt); |
|
|
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level = printk_get_level(fmt); |
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vaf.fmt = printk_skip_level(fmt); |
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vaf.va = &args; |
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printk("%c%cF2FS-fs (%s): %pV\n", |
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KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf); |
|
|
|
va_end(args); |
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} |
|
|
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#ifdef CONFIG_UNICODE |
|
static const struct f2fs_sb_encodings { |
|
__u16 magic; |
|
char *name; |
|
char *version; |
|
} f2fs_sb_encoding_map[] = { |
|
{F2FS_ENC_UTF8_12_1, "utf8", "12.1.0"}, |
|
}; |
|
|
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static int f2fs_sb_read_encoding(const struct f2fs_super_block *sb, |
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const struct f2fs_sb_encodings **encoding, |
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__u16 *flags) |
|
{ |
|
__u16 magic = le16_to_cpu(sb->s_encoding); |
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int i; |
|
|
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for (i = 0; i < ARRAY_SIZE(f2fs_sb_encoding_map); i++) |
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if (magic == f2fs_sb_encoding_map[i].magic) |
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break; |
|
|
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if (i >= ARRAY_SIZE(f2fs_sb_encoding_map)) |
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return -EINVAL; |
|
|
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*encoding = &f2fs_sb_encoding_map[i]; |
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*flags = le16_to_cpu(sb->s_encoding_flags); |
|
|
|
return 0; |
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} |
|
|
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struct kmem_cache *f2fs_cf_name_slab; |
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static int __init f2fs_create_casefold_cache(void) |
|
{ |
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f2fs_cf_name_slab = f2fs_kmem_cache_create("f2fs_casefolded_name", |
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F2FS_NAME_LEN); |
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if (!f2fs_cf_name_slab) |
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return -ENOMEM; |
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return 0; |
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} |
|
|
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static void f2fs_destroy_casefold_cache(void) |
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{ |
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kmem_cache_destroy(f2fs_cf_name_slab); |
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} |
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#else |
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static int __init f2fs_create_casefold_cache(void) { return 0; } |
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static void f2fs_destroy_casefold_cache(void) { } |
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#endif |
|
|
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static inline void limit_reserve_root(struct f2fs_sb_info *sbi) |
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{ |
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block_t limit = min((sbi->user_block_count << 1) / 1000, |
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sbi->user_block_count - sbi->reserved_blocks); |
|
|
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/* limit is 0.2% */ |
|
if (test_opt(sbi, RESERVE_ROOT) && |
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F2FS_OPTION(sbi).root_reserved_blocks > limit) { |
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F2FS_OPTION(sbi).root_reserved_blocks = limit; |
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f2fs_info(sbi, "Reduce reserved blocks for root = %u", |
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F2FS_OPTION(sbi).root_reserved_blocks); |
|
} |
|
if (!test_opt(sbi, RESERVE_ROOT) && |
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(!uid_eq(F2FS_OPTION(sbi).s_resuid, |
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make_kuid(&init_user_ns, F2FS_DEF_RESUID)) || |
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!gid_eq(F2FS_OPTION(sbi).s_resgid, |
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make_kgid(&init_user_ns, F2FS_DEF_RESGID)))) |
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f2fs_info(sbi, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root", |
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from_kuid_munged(&init_user_ns, |
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F2FS_OPTION(sbi).s_resuid), |
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from_kgid_munged(&init_user_ns, |
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F2FS_OPTION(sbi).s_resgid)); |
|
} |
|
|
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static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi) |
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{ |
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if (!F2FS_OPTION(sbi).unusable_cap_perc) |
|
return; |
|
|
|
if (F2FS_OPTION(sbi).unusable_cap_perc == 100) |
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F2FS_OPTION(sbi).unusable_cap = sbi->user_block_count; |
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else |
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F2FS_OPTION(sbi).unusable_cap = (sbi->user_block_count / 100) * |
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F2FS_OPTION(sbi).unusable_cap_perc; |
|
|
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f2fs_info(sbi, "Adjust unusable cap for checkpoint=disable = %u / %u%%", |
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F2FS_OPTION(sbi).unusable_cap, |
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F2FS_OPTION(sbi).unusable_cap_perc); |
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} |
|
|
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static void init_once(void *foo) |
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{ |
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struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo; |
|
|
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inode_init_once(&fi->vfs_inode); |
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} |
|
|
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#ifdef CONFIG_QUOTA |
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static const char * const quotatypes[] = INITQFNAMES; |
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#define QTYPE2NAME(t) (quotatypes[t]) |
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static int f2fs_set_qf_name(struct super_block *sb, int qtype, |
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substring_t *args) |
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{ |
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struct f2fs_sb_info *sbi = F2FS_SB(sb); |
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char *qname; |
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int ret = -EINVAL; |
|
|
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if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) { |
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f2fs_err(sbi, "Cannot change journaled quota options when quota turned on"); |
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return -EINVAL; |
|
} |
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if (f2fs_sb_has_quota_ino(sbi)) { |
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f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name"); |
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return 0; |
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} |
|
|
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qname = match_strdup(args); |
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if (!qname) { |
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f2fs_err(sbi, "Not enough memory for storing quotafile name"); |
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return -ENOMEM; |
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} |
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if (F2FS_OPTION(sbi).s_qf_names[qtype]) { |
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if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0) |
|
ret = 0; |
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else |
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f2fs_err(sbi, "%s quota file already specified", |
|
QTYPE2NAME(qtype)); |
|
goto errout; |
|
} |
|
if (strchr(qname, '/')) { |
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f2fs_err(sbi, "quotafile must be on filesystem root"); |
|
goto errout; |
|
} |
|
F2FS_OPTION(sbi).s_qf_names[qtype] = qname; |
|
set_opt(sbi, QUOTA); |
|
return 0; |
|
errout: |
|
kfree(qname); |
|
return ret; |
|
} |
|
|
|
static int f2fs_clear_qf_name(struct super_block *sb, int qtype) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
|
|
if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) { |
|
f2fs_err(sbi, "Cannot change journaled quota options when quota turned on"); |
|
return -EINVAL; |
|
} |
|
kfree(F2FS_OPTION(sbi).s_qf_names[qtype]); |
|
F2FS_OPTION(sbi).s_qf_names[qtype] = NULL; |
|
return 0; |
|
} |
|
|
|
static int f2fs_check_quota_options(struct f2fs_sb_info *sbi) |
|
{ |
|
/* |
|
* We do the test below only for project quotas. 'usrquota' and |
|
* 'grpquota' mount options are allowed even without quota feature |
|
* to support legacy quotas in quota files. |
|
*/ |
|
if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) { |
|
f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement."); |
|
return -1; |
|
} |
|
if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] || |
|
F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] || |
|
F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) { |
|
if (test_opt(sbi, USRQUOTA) && |
|
F2FS_OPTION(sbi).s_qf_names[USRQUOTA]) |
|
clear_opt(sbi, USRQUOTA); |
|
|
|
if (test_opt(sbi, GRPQUOTA) && |
|
F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]) |
|
clear_opt(sbi, GRPQUOTA); |
|
|
|
if (test_opt(sbi, PRJQUOTA) && |
|
F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) |
|
clear_opt(sbi, PRJQUOTA); |
|
|
|
if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) || |
|
test_opt(sbi, PRJQUOTA)) { |
|
f2fs_err(sbi, "old and new quota format mixing"); |
|
return -1; |
|
} |
|
|
|
if (!F2FS_OPTION(sbi).s_jquota_fmt) { |
|
f2fs_err(sbi, "journaled quota format not specified"); |
|
return -1; |
|
} |
|
} |
|
|
|
if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) { |
|
f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt"); |
|
F2FS_OPTION(sbi).s_jquota_fmt = 0; |
|
} |
|
return 0; |
|
} |
|
#endif |
|
|
|
static int f2fs_set_test_dummy_encryption(struct super_block *sb, |
|
const char *opt, |
|
const substring_t *arg, |
|
bool is_remount) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
#ifdef CONFIG_FS_ENCRYPTION |
|
int err; |
|
|
|
if (!f2fs_sb_has_encrypt(sbi)) { |
|
f2fs_err(sbi, "Encrypt feature is off"); |
|
return -EINVAL; |
|
} |
|
|
|
/* |
|
* This mount option is just for testing, and it's not worthwhile to |
|
* implement the extra complexity (e.g. RCU protection) that would be |
|
* needed to allow it to be set or changed during remount. We do allow |
|
* it to be specified during remount, but only if there is no change. |
|
*/ |
|
if (is_remount && !F2FS_OPTION(sbi).dummy_enc_policy.policy) { |
|
f2fs_warn(sbi, "Can't set test_dummy_encryption on remount"); |
|
return -EINVAL; |
|
} |
|
err = fscrypt_set_test_dummy_encryption( |
|
sb, arg->from, &F2FS_OPTION(sbi).dummy_enc_policy); |
|
if (err) { |
|
if (err == -EEXIST) |
|
f2fs_warn(sbi, |
|
"Can't change test_dummy_encryption on remount"); |
|
else if (err == -EINVAL) |
|
f2fs_warn(sbi, "Value of option \"%s\" is unrecognized", |
|
opt); |
|
else |
|
f2fs_warn(sbi, "Error processing option \"%s\" [%d]", |
|
opt, err); |
|
return -EINVAL; |
|
} |
|
f2fs_warn(sbi, "Test dummy encryption mode enabled"); |
|
#else |
|
f2fs_warn(sbi, "Test dummy encryption mount option ignored"); |
|
#endif |
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
/* |
|
* 1. The same extension name cannot not appear in both compress and non-compress extension |
|
* at the same time. |
|
* 2. If the compress extension specifies all files, the types specified by the non-compress |
|
* extension will be treated as special cases and will not be compressed. |
|
* 3. Don't allow the non-compress extension specifies all files. |
|
*/ |
|
static int f2fs_test_compress_extension(struct f2fs_sb_info *sbi) |
|
{ |
|
unsigned char (*ext)[F2FS_EXTENSION_LEN]; |
|
unsigned char (*noext)[F2FS_EXTENSION_LEN]; |
|
int ext_cnt, noext_cnt, index = 0, no_index = 0; |
|
|
|
ext = F2FS_OPTION(sbi).extensions; |
|
ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt; |
|
noext = F2FS_OPTION(sbi).noextensions; |
|
noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt; |
|
|
|
if (!noext_cnt) |
|
return 0; |
|
|
|
for (no_index = 0; no_index < noext_cnt; no_index++) { |
|
if (!strcasecmp("*", noext[no_index])) { |
|
f2fs_info(sbi, "Don't allow the nocompress extension specifies all files"); |
|
return -EINVAL; |
|
} |
|
for (index = 0; index < ext_cnt; index++) { |
|
if (!strcasecmp(ext[index], noext[no_index])) { |
|
f2fs_info(sbi, "Don't allow the same extension %s appear in both compress and nocompress extension", |
|
ext[index]); |
|
return -EINVAL; |
|
} |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_F2FS_FS_LZ4 |
|
static int f2fs_set_lz4hc_level(struct f2fs_sb_info *sbi, const char *str) |
|
{ |
|
#ifdef CONFIG_F2FS_FS_LZ4HC |
|
unsigned int level; |
|
#endif |
|
|
|
if (strlen(str) == 3) { |
|
F2FS_OPTION(sbi).compress_level = 0; |
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_F2FS_FS_LZ4HC |
|
str += 3; |
|
|
|
if (str[0] != ':') { |
|
f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>"); |
|
return -EINVAL; |
|
} |
|
if (kstrtouint(str + 1, 10, &level)) |
|
return -EINVAL; |
|
|
|
if (level < LZ4HC_MIN_CLEVEL || level > LZ4HC_MAX_CLEVEL) { |
|
f2fs_info(sbi, "invalid lz4hc compress level: %d", level); |
|
return -EINVAL; |
|
} |
|
|
|
F2FS_OPTION(sbi).compress_level = level; |
|
return 0; |
|
#else |
|
f2fs_info(sbi, "kernel doesn't support lz4hc compression"); |
|
return -EINVAL; |
|
#endif |
|
} |
|
#endif |
|
|
|
#ifdef CONFIG_F2FS_FS_ZSTD |
|
static int f2fs_set_zstd_level(struct f2fs_sb_info *sbi, const char *str) |
|
{ |
|
unsigned int level; |
|
int len = 4; |
|
|
|
if (strlen(str) == len) { |
|
F2FS_OPTION(sbi).compress_level = 0; |
|
return 0; |
|
} |
|
|
|
str += len; |
|
|
|
if (str[0] != ':') { |
|
f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>"); |
|
return -EINVAL; |
|
} |
|
if (kstrtouint(str + 1, 10, &level)) |
|
return -EINVAL; |
|
|
|
if (!level || level > ZSTD_maxCLevel()) { |
|
f2fs_info(sbi, "invalid zstd compress level: %d", level); |
|
return -EINVAL; |
|
} |
|
|
|
F2FS_OPTION(sbi).compress_level = level; |
|
return 0; |
|
} |
|
#endif |
|
#endif |
|
|
|
static int parse_options(struct super_block *sb, char *options, bool is_remount) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
substring_t args[MAX_OPT_ARGS]; |
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
unsigned char (*ext)[F2FS_EXTENSION_LEN]; |
|
unsigned char (*noext)[F2FS_EXTENSION_LEN]; |
|
int ext_cnt, noext_cnt; |
|
#endif |
|
char *p, *name; |
|
int arg = 0; |
|
kuid_t uid; |
|
kgid_t gid; |
|
int ret; |
|
|
|
if (!options) |
|
goto default_check; |
|
|
|
while ((p = strsep(&options, ",")) != NULL) { |
|
int token; |
|
|
|
if (!*p) |
|
continue; |
|
/* |
|
* Initialize args struct so we know whether arg was |
|
* found; some options take optional arguments. |
|
*/ |
|
args[0].to = args[0].from = NULL; |
|
token = match_token(p, f2fs_tokens, args); |
|
|
|
switch (token) { |
|
case Opt_gc_background: |
|
name = match_strdup(&args[0]); |
|
|
|
if (!name) |
|
return -ENOMEM; |
|
if (!strcmp(name, "on")) { |
|
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON; |
|
} else if (!strcmp(name, "off")) { |
|
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF; |
|
} else if (!strcmp(name, "sync")) { |
|
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC; |
|
} else { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
kfree(name); |
|
break; |
|
case Opt_disable_roll_forward: |
|
set_opt(sbi, DISABLE_ROLL_FORWARD); |
|
break; |
|
case Opt_norecovery: |
|
/* this option mounts f2fs with ro */ |
|
set_opt(sbi, NORECOVERY); |
|
if (!f2fs_readonly(sb)) |
|
return -EINVAL; |
|
break; |
|
case Opt_discard: |
|
set_opt(sbi, DISCARD); |
|
break; |
|
case Opt_nodiscard: |
|
if (f2fs_sb_has_blkzoned(sbi)) { |
|
f2fs_warn(sbi, "discard is required for zoned block devices"); |
|
return -EINVAL; |
|
} |
|
clear_opt(sbi, DISCARD); |
|
break; |
|
case Opt_noheap: |
|
set_opt(sbi, NOHEAP); |
|
break; |
|
case Opt_heap: |
|
clear_opt(sbi, NOHEAP); |
|
break; |
|
#ifdef CONFIG_F2FS_FS_XATTR |
|
case Opt_user_xattr: |
|
set_opt(sbi, XATTR_USER); |
|
break; |
|
case Opt_nouser_xattr: |
|
clear_opt(sbi, XATTR_USER); |
|
break; |
|
case Opt_inline_xattr: |
|
set_opt(sbi, INLINE_XATTR); |
|
break; |
|
case Opt_noinline_xattr: |
|
clear_opt(sbi, INLINE_XATTR); |
|
break; |
|
case Opt_inline_xattr_size: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
set_opt(sbi, INLINE_XATTR_SIZE); |
|
F2FS_OPTION(sbi).inline_xattr_size = arg; |
|
break; |
|
#else |
|
case Opt_user_xattr: |
|
f2fs_info(sbi, "user_xattr options not supported"); |
|
break; |
|
case Opt_nouser_xattr: |
|
f2fs_info(sbi, "nouser_xattr options not supported"); |
|
break; |
|
case Opt_inline_xattr: |
|
f2fs_info(sbi, "inline_xattr options not supported"); |
|
break; |
|
case Opt_noinline_xattr: |
|
f2fs_info(sbi, "noinline_xattr options not supported"); |
|
break; |
|
#endif |
|
#ifdef CONFIG_F2FS_FS_POSIX_ACL |
|
case Opt_acl: |
|
set_opt(sbi, POSIX_ACL); |
|
break; |
|
case Opt_noacl: |
|
clear_opt(sbi, POSIX_ACL); |
|
break; |
|
#else |
|
case Opt_acl: |
|
f2fs_info(sbi, "acl options not supported"); |
|
break; |
|
case Opt_noacl: |
|
f2fs_info(sbi, "noacl options not supported"); |
|
break; |
|
#endif |
|
case Opt_active_logs: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
if (arg != 2 && arg != 4 && |
|
arg != NR_CURSEG_PERSIST_TYPE) |
|
return -EINVAL; |
|
F2FS_OPTION(sbi).active_logs = arg; |
|
break; |
|
case Opt_disable_ext_identify: |
|
set_opt(sbi, DISABLE_EXT_IDENTIFY); |
|
break; |
|
case Opt_inline_data: |
|
set_opt(sbi, INLINE_DATA); |
|
break; |
|
case Opt_inline_dentry: |
|
set_opt(sbi, INLINE_DENTRY); |
|
break; |
|
case Opt_noinline_dentry: |
|
clear_opt(sbi, INLINE_DENTRY); |
|
break; |
|
case Opt_flush_merge: |
|
set_opt(sbi, FLUSH_MERGE); |
|
break; |
|
case Opt_noflush_merge: |
|
clear_opt(sbi, FLUSH_MERGE); |
|
break; |
|
case Opt_nobarrier: |
|
set_opt(sbi, NOBARRIER); |
|
break; |
|
case Opt_fastboot: |
|
set_opt(sbi, FASTBOOT); |
|
break; |
|
case Opt_extent_cache: |
|
set_opt(sbi, EXTENT_CACHE); |
|
break; |
|
case Opt_noextent_cache: |
|
clear_opt(sbi, EXTENT_CACHE); |
|
break; |
|
case Opt_noinline_data: |
|
clear_opt(sbi, INLINE_DATA); |
|
break; |
|
case Opt_data_flush: |
|
set_opt(sbi, DATA_FLUSH); |
|
break; |
|
case Opt_reserve_root: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
if (test_opt(sbi, RESERVE_ROOT)) { |
|
f2fs_info(sbi, "Preserve previous reserve_root=%u", |
|
F2FS_OPTION(sbi).root_reserved_blocks); |
|
} else { |
|
F2FS_OPTION(sbi).root_reserved_blocks = arg; |
|
set_opt(sbi, RESERVE_ROOT); |
|
} |
|
break; |
|
case Opt_resuid: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
uid = make_kuid(current_user_ns(), arg); |
|
if (!uid_valid(uid)) { |
|
f2fs_err(sbi, "Invalid uid value %d", arg); |
|
return -EINVAL; |
|
} |
|
F2FS_OPTION(sbi).s_resuid = uid; |
|
break; |
|
case Opt_resgid: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
gid = make_kgid(current_user_ns(), arg); |
|
if (!gid_valid(gid)) { |
|
f2fs_err(sbi, "Invalid gid value %d", arg); |
|
return -EINVAL; |
|
} |
|
F2FS_OPTION(sbi).s_resgid = gid; |
|
break; |
|
case Opt_mode: |
|
name = match_strdup(&args[0]); |
|
|
|
if (!name) |
|
return -ENOMEM; |
|
if (!strcmp(name, "adaptive")) { |
|
if (f2fs_sb_has_blkzoned(sbi)) { |
|
f2fs_warn(sbi, "adaptive mode is not allowed with zoned block device feature"); |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE; |
|
} else if (!strcmp(name, "lfs")) { |
|
F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS; |
|
} else { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
kfree(name); |
|
break; |
|
case Opt_io_size_bits: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_VECS)) { |
|
f2fs_warn(sbi, "Not support %d, larger than %d", |
|
1 << arg, BIO_MAX_VECS); |
|
return -EINVAL; |
|
} |
|
F2FS_OPTION(sbi).write_io_size_bits = arg; |
|
break; |
|
#ifdef CONFIG_F2FS_FAULT_INJECTION |
|
case Opt_fault_injection: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE); |
|
set_opt(sbi, FAULT_INJECTION); |
|
break; |
|
|
|
case Opt_fault_type: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
f2fs_build_fault_attr(sbi, 0, arg); |
|
set_opt(sbi, FAULT_INJECTION); |
|
break; |
|
#else |
|
case Opt_fault_injection: |
|
f2fs_info(sbi, "fault_injection options not supported"); |
|
break; |
|
|
|
case Opt_fault_type: |
|
f2fs_info(sbi, "fault_type options not supported"); |
|
break; |
|
#endif |
|
case Opt_lazytime: |
|
sb->s_flags |= SB_LAZYTIME; |
|
break; |
|
case Opt_nolazytime: |
|
sb->s_flags &= ~SB_LAZYTIME; |
|
break; |
|
#ifdef CONFIG_QUOTA |
|
case Opt_quota: |
|
case Opt_usrquota: |
|
set_opt(sbi, USRQUOTA); |
|
break; |
|
case Opt_grpquota: |
|
set_opt(sbi, GRPQUOTA); |
|
break; |
|
case Opt_prjquota: |
|
set_opt(sbi, PRJQUOTA); |
|
break; |
|
case Opt_usrjquota: |
|
ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]); |
|
if (ret) |
|
return ret; |
|
break; |
|
case Opt_grpjquota: |
|
ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]); |
|
if (ret) |
|
return ret; |
|
break; |
|
case Opt_prjjquota: |
|
ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]); |
|
if (ret) |
|
return ret; |
|
break; |
|
case Opt_offusrjquota: |
|
ret = f2fs_clear_qf_name(sb, USRQUOTA); |
|
if (ret) |
|
return ret; |
|
break; |
|
case Opt_offgrpjquota: |
|
ret = f2fs_clear_qf_name(sb, GRPQUOTA); |
|
if (ret) |
|
return ret; |
|
break; |
|
case Opt_offprjjquota: |
|
ret = f2fs_clear_qf_name(sb, PRJQUOTA); |
|
if (ret) |
|
return ret; |
|
break; |
|
case Opt_jqfmt_vfsold: |
|
F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD; |
|
break; |
|
case Opt_jqfmt_vfsv0: |
|
F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0; |
|
break; |
|
case Opt_jqfmt_vfsv1: |
|
F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1; |
|
break; |
|
case Opt_noquota: |
|
clear_opt(sbi, QUOTA); |
|
clear_opt(sbi, USRQUOTA); |
|
clear_opt(sbi, GRPQUOTA); |
|
clear_opt(sbi, PRJQUOTA); |
|
break; |
|
#else |
|
case Opt_quota: |
|
case Opt_usrquota: |
|
case Opt_grpquota: |
|
case Opt_prjquota: |
|
case Opt_usrjquota: |
|
case Opt_grpjquota: |
|
case Opt_prjjquota: |
|
case Opt_offusrjquota: |
|
case Opt_offgrpjquota: |
|
case Opt_offprjjquota: |
|
case Opt_jqfmt_vfsold: |
|
case Opt_jqfmt_vfsv0: |
|
case Opt_jqfmt_vfsv1: |
|
case Opt_noquota: |
|
f2fs_info(sbi, "quota operations not supported"); |
|
break; |
|
#endif |
|
case Opt_whint: |
|
name = match_strdup(&args[0]); |
|
if (!name) |
|
return -ENOMEM; |
|
if (!strcmp(name, "user-based")) { |
|
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_USER; |
|
} else if (!strcmp(name, "off")) { |
|
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; |
|
} else if (!strcmp(name, "fs-based")) { |
|
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_FS; |
|
} else { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
kfree(name); |
|
break; |
|
case Opt_alloc: |
|
name = match_strdup(&args[0]); |
|
if (!name) |
|
return -ENOMEM; |
|
|
|
if (!strcmp(name, "default")) { |
|
F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT; |
|
} else if (!strcmp(name, "reuse")) { |
|
F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE; |
|
} else { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
kfree(name); |
|
break; |
|
case Opt_fsync: |
|
name = match_strdup(&args[0]); |
|
if (!name) |
|
return -ENOMEM; |
|
if (!strcmp(name, "posix")) { |
|
F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX; |
|
} else if (!strcmp(name, "strict")) { |
|
F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT; |
|
} else if (!strcmp(name, "nobarrier")) { |
|
F2FS_OPTION(sbi).fsync_mode = |
|
FSYNC_MODE_NOBARRIER; |
|
} else { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
kfree(name); |
|
break; |
|
case Opt_test_dummy_encryption: |
|
ret = f2fs_set_test_dummy_encryption(sb, p, &args[0], |
|
is_remount); |
|
if (ret) |
|
return ret; |
|
break; |
|
case Opt_inlinecrypt: |
|
#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT |
|
sb->s_flags |= SB_INLINECRYPT; |
|
#else |
|
f2fs_info(sbi, "inline encryption not supported"); |
|
#endif |
|
break; |
|
case Opt_checkpoint_disable_cap_perc: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
if (arg < 0 || arg > 100) |
|
return -EINVAL; |
|
F2FS_OPTION(sbi).unusable_cap_perc = arg; |
|
set_opt(sbi, DISABLE_CHECKPOINT); |
|
break; |
|
case Opt_checkpoint_disable_cap: |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
F2FS_OPTION(sbi).unusable_cap = arg; |
|
set_opt(sbi, DISABLE_CHECKPOINT); |
|
break; |
|
case Opt_checkpoint_disable: |
|
set_opt(sbi, DISABLE_CHECKPOINT); |
|
break; |
|
case Opt_checkpoint_enable: |
|
clear_opt(sbi, DISABLE_CHECKPOINT); |
|
break; |
|
case Opt_checkpoint_merge: |
|
set_opt(sbi, MERGE_CHECKPOINT); |
|
break; |
|
case Opt_nocheckpoint_merge: |
|
clear_opt(sbi, MERGE_CHECKPOINT); |
|
break; |
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
case Opt_compress_algorithm: |
|
if (!f2fs_sb_has_compression(sbi)) { |
|
f2fs_info(sbi, "Image doesn't support compression"); |
|
break; |
|
} |
|
name = match_strdup(&args[0]); |
|
if (!name) |
|
return -ENOMEM; |
|
if (!strcmp(name, "lzo")) { |
|
#ifdef CONFIG_F2FS_FS_LZO |
|
F2FS_OPTION(sbi).compress_level = 0; |
|
F2FS_OPTION(sbi).compress_algorithm = |
|
COMPRESS_LZO; |
|
#else |
|
f2fs_info(sbi, "kernel doesn't support lzo compression"); |
|
#endif |
|
} else if (!strncmp(name, "lz4", 3)) { |
|
#ifdef CONFIG_F2FS_FS_LZ4 |
|
ret = f2fs_set_lz4hc_level(sbi, name); |
|
if (ret) { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
F2FS_OPTION(sbi).compress_algorithm = |
|
COMPRESS_LZ4; |
|
#else |
|
f2fs_info(sbi, "kernel doesn't support lz4 compression"); |
|
#endif |
|
} else if (!strncmp(name, "zstd", 4)) { |
|
#ifdef CONFIG_F2FS_FS_ZSTD |
|
ret = f2fs_set_zstd_level(sbi, name); |
|
if (ret) { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
F2FS_OPTION(sbi).compress_algorithm = |
|
COMPRESS_ZSTD; |
|
#else |
|
f2fs_info(sbi, "kernel doesn't support zstd compression"); |
|
#endif |
|
} else if (!strcmp(name, "lzo-rle")) { |
|
#ifdef CONFIG_F2FS_FS_LZORLE |
|
F2FS_OPTION(sbi).compress_level = 0; |
|
F2FS_OPTION(sbi).compress_algorithm = |
|
COMPRESS_LZORLE; |
|
#else |
|
f2fs_info(sbi, "kernel doesn't support lzorle compression"); |
|
#endif |
|
} else { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
kfree(name); |
|
break; |
|
case Opt_compress_log_size: |
|
if (!f2fs_sb_has_compression(sbi)) { |
|
f2fs_info(sbi, "Image doesn't support compression"); |
|
break; |
|
} |
|
if (args->from && match_int(args, &arg)) |
|
return -EINVAL; |
|
if (arg < MIN_COMPRESS_LOG_SIZE || |
|
arg > MAX_COMPRESS_LOG_SIZE) { |
|
f2fs_err(sbi, |
|
"Compress cluster log size is out of range"); |
|
return -EINVAL; |
|
} |
|
F2FS_OPTION(sbi).compress_log_size = arg; |
|
break; |
|
case Opt_compress_extension: |
|
if (!f2fs_sb_has_compression(sbi)) { |
|
f2fs_info(sbi, "Image doesn't support compression"); |
|
break; |
|
} |
|
name = match_strdup(&args[0]); |
|
if (!name) |
|
return -ENOMEM; |
|
|
|
ext = F2FS_OPTION(sbi).extensions; |
|
ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt; |
|
|
|
if (strlen(name) >= F2FS_EXTENSION_LEN || |
|
ext_cnt >= COMPRESS_EXT_NUM) { |
|
f2fs_err(sbi, |
|
"invalid extension length/number"); |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
|
|
strcpy(ext[ext_cnt], name); |
|
F2FS_OPTION(sbi).compress_ext_cnt++; |
|
kfree(name); |
|
break; |
|
case Opt_nocompress_extension: |
|
if (!f2fs_sb_has_compression(sbi)) { |
|
f2fs_info(sbi, "Image doesn't support compression"); |
|
break; |
|
} |
|
name = match_strdup(&args[0]); |
|
if (!name) |
|
return -ENOMEM; |
|
|
|
noext = F2FS_OPTION(sbi).noextensions; |
|
noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt; |
|
|
|
if (strlen(name) >= F2FS_EXTENSION_LEN || |
|
noext_cnt >= COMPRESS_EXT_NUM) { |
|
f2fs_err(sbi, |
|
"invalid extension length/number"); |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
|
|
strcpy(noext[noext_cnt], name); |
|
F2FS_OPTION(sbi).nocompress_ext_cnt++; |
|
kfree(name); |
|
break; |
|
case Opt_compress_chksum: |
|
F2FS_OPTION(sbi).compress_chksum = true; |
|
break; |
|
case Opt_compress_mode: |
|
name = match_strdup(&args[0]); |
|
if (!name) |
|
return -ENOMEM; |
|
if (!strcmp(name, "fs")) { |
|
F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS; |
|
} else if (!strcmp(name, "user")) { |
|
F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER; |
|
} else { |
|
kfree(name); |
|
return -EINVAL; |
|
} |
|
kfree(name); |
|
break; |
|
case Opt_compress_cache: |
|
set_opt(sbi, COMPRESS_CACHE); |
|
break; |
|
#else |
|
case Opt_compress_algorithm: |
|
case Opt_compress_log_size: |
|
case Opt_compress_extension: |
|
case Opt_nocompress_extension: |
|
case Opt_compress_chksum: |
|
case Opt_compress_mode: |
|
case Opt_compress_cache: |
|
f2fs_info(sbi, "compression options not supported"); |
|
break; |
|
#endif |
|
case Opt_atgc: |
|
set_opt(sbi, ATGC); |
|
break; |
|
case Opt_gc_merge: |
|
set_opt(sbi, GC_MERGE); |
|
break; |
|
case Opt_nogc_merge: |
|
clear_opt(sbi, GC_MERGE); |
|
break; |
|
default: |
|
f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value", |
|
p); |
|
return -EINVAL; |
|
} |
|
} |
|
default_check: |
|
#ifdef CONFIG_QUOTA |
|
if (f2fs_check_quota_options(sbi)) |
|
return -EINVAL; |
|
#else |
|
if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) { |
|
f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA"); |
|
return -EINVAL; |
|
} |
|
if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) { |
|
f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA"); |
|
return -EINVAL; |
|
} |
|
#endif |
|
#ifndef CONFIG_UNICODE |
|
if (f2fs_sb_has_casefold(sbi)) { |
|
f2fs_err(sbi, |
|
"Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE"); |
|
return -EINVAL; |
|
} |
|
#endif |
|
/* |
|
* The BLKZONED feature indicates that the drive was formatted with |
|
* zone alignment optimization. This is optional for host-aware |
|
* devices, but mandatory for host-managed zoned block devices. |
|
*/ |
|
#ifndef CONFIG_BLK_DEV_ZONED |
|
if (f2fs_sb_has_blkzoned(sbi)) { |
|
f2fs_err(sbi, "Zoned block device support is not enabled"); |
|
return -EINVAL; |
|
} |
|
#endif |
|
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
if (f2fs_test_compress_extension(sbi)) { |
|
f2fs_err(sbi, "invalid compress or nocompress extension"); |
|
return -EINVAL; |
|
} |
|
#endif |
|
|
|
if (F2FS_IO_SIZE_BITS(sbi) && !f2fs_lfs_mode(sbi)) { |
|
f2fs_err(sbi, "Should set mode=lfs with %uKB-sized IO", |
|
F2FS_IO_SIZE_KB(sbi)); |
|
return -EINVAL; |
|
} |
|
|
|
if (test_opt(sbi, INLINE_XATTR_SIZE)) { |
|
int min_size, max_size; |
|
|
|
if (!f2fs_sb_has_extra_attr(sbi) || |
|
!f2fs_sb_has_flexible_inline_xattr(sbi)) { |
|
f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off"); |
|
return -EINVAL; |
|
} |
|
if (!test_opt(sbi, INLINE_XATTR)) { |
|
f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option"); |
|
return -EINVAL; |
|
} |
|
|
|
min_size = sizeof(struct f2fs_xattr_header) / sizeof(__le32); |
|
max_size = MAX_INLINE_XATTR_SIZE; |
|
|
|
if (F2FS_OPTION(sbi).inline_xattr_size < min_size || |
|
F2FS_OPTION(sbi).inline_xattr_size > max_size) { |
|
f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d", |
|
min_size, max_size); |
|
return -EINVAL; |
|
} |
|
} |
|
|
|
if (test_opt(sbi, DISABLE_CHECKPOINT) && f2fs_lfs_mode(sbi)) { |
|
f2fs_err(sbi, "LFS not compatible with checkpoint=disable"); |
|
return -EINVAL; |
|
} |
|
|
|
/* Not pass down write hints if the number of active logs is lesser |
|
* than NR_CURSEG_PERSIST_TYPE. |
|
*/ |
|
if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE) |
|
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; |
|
|
|
if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) { |
|
f2fs_err(sbi, "Allow to mount readonly mode only"); |
|
return -EROFS; |
|
} |
|
return 0; |
|
} |
|
|
|
static struct inode *f2fs_alloc_inode(struct super_block *sb) |
|
{ |
|
struct f2fs_inode_info *fi; |
|
|
|
fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO); |
|
if (!fi) |
|
return NULL; |
|
|
|
init_once((void *) fi); |
|
|
|
/* Initialize f2fs-specific inode info */ |
|
atomic_set(&fi->dirty_pages, 0); |
|
atomic_set(&fi->i_compr_blocks, 0); |
|
init_rwsem(&fi->i_sem); |
|
spin_lock_init(&fi->i_size_lock); |
|
INIT_LIST_HEAD(&fi->dirty_list); |
|
INIT_LIST_HEAD(&fi->gdirty_list); |
|
INIT_LIST_HEAD(&fi->inmem_ilist); |
|
INIT_LIST_HEAD(&fi->inmem_pages); |
|
mutex_init(&fi->inmem_lock); |
|
init_rwsem(&fi->i_gc_rwsem[READ]); |
|
init_rwsem(&fi->i_gc_rwsem[WRITE]); |
|
init_rwsem(&fi->i_mmap_sem); |
|
init_rwsem(&fi->i_xattr_sem); |
|
|
|
/* Will be used by directory only */ |
|
fi->i_dir_level = F2FS_SB(sb)->dir_level; |
|
|
|
return &fi->vfs_inode; |
|
} |
|
|
|
static int f2fs_drop_inode(struct inode *inode) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
|
int ret; |
|
|
|
/* |
|
* during filesystem shutdown, if checkpoint is disabled, |
|
* drop useless meta/node dirty pages. |
|
*/ |
|
if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { |
|
if (inode->i_ino == F2FS_NODE_INO(sbi) || |
|
inode->i_ino == F2FS_META_INO(sbi)) { |
|
trace_f2fs_drop_inode(inode, 1); |
|
return 1; |
|
} |
|
} |
|
|
|
/* |
|
* This is to avoid a deadlock condition like below. |
|
* writeback_single_inode(inode) |
|
* - f2fs_write_data_page |
|
* - f2fs_gc -> iput -> evict |
|
* - inode_wait_for_writeback(inode) |
|
*/ |
|
if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) { |
|
if (!inode->i_nlink && !is_bad_inode(inode)) { |
|
/* to avoid evict_inode call simultaneously */ |
|
atomic_inc(&inode->i_count); |
|
spin_unlock(&inode->i_lock); |
|
|
|
/* some remained atomic pages should discarded */ |
|
if (f2fs_is_atomic_file(inode)) |
|
f2fs_drop_inmem_pages(inode); |
|
|
|
/* should remain fi->extent_tree for writepage */ |
|
f2fs_destroy_extent_node(inode); |
|
|
|
sb_start_intwrite(inode->i_sb); |
|
f2fs_i_size_write(inode, 0); |
|
|
|
f2fs_submit_merged_write_cond(F2FS_I_SB(inode), |
|
inode, NULL, 0, DATA); |
|
truncate_inode_pages_final(inode->i_mapping); |
|
|
|
if (F2FS_HAS_BLOCKS(inode)) |
|
f2fs_truncate(inode); |
|
|
|
sb_end_intwrite(inode->i_sb); |
|
|
|
spin_lock(&inode->i_lock); |
|
atomic_dec(&inode->i_count); |
|
} |
|
trace_f2fs_drop_inode(inode, 0); |
|
return 0; |
|
} |
|
ret = generic_drop_inode(inode); |
|
if (!ret) |
|
ret = fscrypt_drop_inode(inode); |
|
trace_f2fs_drop_inode(inode, ret); |
|
return ret; |
|
} |
|
|
|
int f2fs_inode_dirtied(struct inode *inode, bool sync) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
|
int ret = 0; |
|
|
|
spin_lock(&sbi->inode_lock[DIRTY_META]); |
|
if (is_inode_flag_set(inode, FI_DIRTY_INODE)) { |
|
ret = 1; |
|
} else { |
|
set_inode_flag(inode, FI_DIRTY_INODE); |
|
stat_inc_dirty_inode(sbi, DIRTY_META); |
|
} |
|
if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) { |
|
list_add_tail(&F2FS_I(inode)->gdirty_list, |
|
&sbi->inode_list[DIRTY_META]); |
|
inc_page_count(sbi, F2FS_DIRTY_IMETA); |
|
} |
|
spin_unlock(&sbi->inode_lock[DIRTY_META]); |
|
return ret; |
|
} |
|
|
|
void f2fs_inode_synced(struct inode *inode) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
|
|
|
spin_lock(&sbi->inode_lock[DIRTY_META]); |
|
if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) { |
|
spin_unlock(&sbi->inode_lock[DIRTY_META]); |
|
return; |
|
} |
|
if (!list_empty(&F2FS_I(inode)->gdirty_list)) { |
|
list_del_init(&F2FS_I(inode)->gdirty_list); |
|
dec_page_count(sbi, F2FS_DIRTY_IMETA); |
|
} |
|
clear_inode_flag(inode, FI_DIRTY_INODE); |
|
clear_inode_flag(inode, FI_AUTO_RECOVER); |
|
stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META); |
|
spin_unlock(&sbi->inode_lock[DIRTY_META]); |
|
} |
|
|
|
/* |
|
* f2fs_dirty_inode() is called from __mark_inode_dirty() |
|
* |
|
* We should call set_dirty_inode to write the dirty inode through write_inode. |
|
*/ |
|
static void f2fs_dirty_inode(struct inode *inode, int flags) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
|
|
|
if (inode->i_ino == F2FS_NODE_INO(sbi) || |
|
inode->i_ino == F2FS_META_INO(sbi)) |
|
return; |
|
|
|
if (is_inode_flag_set(inode, FI_AUTO_RECOVER)) |
|
clear_inode_flag(inode, FI_AUTO_RECOVER); |
|
|
|
f2fs_inode_dirtied(inode, false); |
|
} |
|
|
|
static void f2fs_free_inode(struct inode *inode) |
|
{ |
|
fscrypt_free_inode(inode); |
|
kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode)); |
|
} |
|
|
|
static void destroy_percpu_info(struct f2fs_sb_info *sbi) |
|
{ |
|
percpu_counter_destroy(&sbi->alloc_valid_block_count); |
|
percpu_counter_destroy(&sbi->total_valid_inode_count); |
|
} |
|
|
|
static void destroy_device_list(struct f2fs_sb_info *sbi) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < sbi->s_ndevs; i++) { |
|
blkdev_put(FDEV(i).bdev, FMODE_EXCL); |
|
#ifdef CONFIG_BLK_DEV_ZONED |
|
kvfree(FDEV(i).blkz_seq); |
|
kfree(FDEV(i).zone_capacity_blocks); |
|
#endif |
|
} |
|
kvfree(sbi->devs); |
|
} |
|
|
|
static void f2fs_put_super(struct super_block *sb) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
int i; |
|
bool dropped; |
|
|
|
/* unregister procfs/sysfs entries in advance to avoid race case */ |
|
f2fs_unregister_sysfs(sbi); |
|
|
|
f2fs_quota_off_umount(sb); |
|
|
|
/* prevent remaining shrinker jobs */ |
|
mutex_lock(&sbi->umount_mutex); |
|
|
|
/* |
|
* flush all issued checkpoints and stop checkpoint issue thread. |
|
* after then, all checkpoints should be done by each process context. |
|
*/ |
|
f2fs_stop_ckpt_thread(sbi); |
|
|
|
/* |
|
* We don't need to do checkpoint when superblock is clean. |
|
* But, the previous checkpoint was not done by umount, it needs to do |
|
* clean checkpoint again. |
|
*/ |
|
if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
|
!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) { |
|
struct cp_control cpc = { |
|
.reason = CP_UMOUNT, |
|
}; |
|
f2fs_write_checkpoint(sbi, &cpc); |
|
} |
|
|
|
/* be sure to wait for any on-going discard commands */ |
|
dropped = f2fs_issue_discard_timeout(sbi); |
|
|
|
if ((f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi)) && |
|
!sbi->discard_blks && !dropped) { |
|
struct cp_control cpc = { |
|
.reason = CP_UMOUNT | CP_TRIMMED, |
|
}; |
|
f2fs_write_checkpoint(sbi, &cpc); |
|
} |
|
|
|
/* |
|
* normally superblock is clean, so we need to release this. |
|
* In addition, EIO will skip do checkpoint, we need this as well. |
|
*/ |
|
f2fs_release_ino_entry(sbi, true); |
|
|
|
f2fs_leave_shrinker(sbi); |
|
mutex_unlock(&sbi->umount_mutex); |
|
|
|
/* our cp_error case, we can wait for any writeback page */ |
|
f2fs_flush_merged_writes(sbi); |
|
|
|
f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA); |
|
|
|
f2fs_bug_on(sbi, sbi->fsync_node_num); |
|
|
|
f2fs_destroy_compress_inode(sbi); |
|
|
|
iput(sbi->node_inode); |
|
sbi->node_inode = NULL; |
|
|
|
iput(sbi->meta_inode); |
|
sbi->meta_inode = NULL; |
|
|
|
/* |
|
* iput() can update stat information, if f2fs_write_checkpoint() |
|
* above failed with error. |
|
*/ |
|
f2fs_destroy_stats(sbi); |
|
|
|
/* destroy f2fs internal modules */ |
|
f2fs_destroy_node_manager(sbi); |
|
f2fs_destroy_segment_manager(sbi); |
|
|
|
f2fs_destroy_post_read_wq(sbi); |
|
|
|
kvfree(sbi->ckpt); |
|
|
|
sb->s_fs_info = NULL; |
|
if (sbi->s_chksum_driver) |
|
crypto_free_shash(sbi->s_chksum_driver); |
|
kfree(sbi->raw_super); |
|
|
|
destroy_device_list(sbi); |
|
f2fs_destroy_page_array_cache(sbi); |
|
f2fs_destroy_xattr_caches(sbi); |
|
mempool_destroy(sbi->write_io_dummy); |
|
#ifdef CONFIG_QUOTA |
|
for (i = 0; i < MAXQUOTAS; i++) |
|
kfree(F2FS_OPTION(sbi).s_qf_names[i]); |
|
#endif |
|
fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy); |
|
destroy_percpu_info(sbi); |
|
for (i = 0; i < NR_PAGE_TYPE; i++) |
|
kvfree(sbi->write_io[i]); |
|
#ifdef CONFIG_UNICODE |
|
utf8_unload(sb->s_encoding); |
|
#endif |
|
kfree(sbi); |
|
} |
|
|
|
int f2fs_sync_fs(struct super_block *sb, int sync) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
int err = 0; |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) |
|
return 0; |
|
if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) |
|
return 0; |
|
|
|
trace_f2fs_sync_fs(sb, sync); |
|
|
|
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) |
|
return -EAGAIN; |
|
|
|
if (sync) |
|
err = f2fs_issue_checkpoint(sbi); |
|
|
|
return err; |
|
} |
|
|
|
static int f2fs_freeze(struct super_block *sb) |
|
{ |
|
if (f2fs_readonly(sb)) |
|
return 0; |
|
|
|
/* IO error happened before */ |
|
if (unlikely(f2fs_cp_error(F2FS_SB(sb)))) |
|
return -EIO; |
|
|
|
/* must be clean, since sync_filesystem() was already called */ |
|
if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY)) |
|
return -EINVAL; |
|
|
|
/* ensure no checkpoint required */ |
|
if (!llist_empty(&F2FS_SB(sb)->cprc_info.issue_list)) |
|
return -EINVAL; |
|
return 0; |
|
} |
|
|
|
static int f2fs_unfreeze(struct super_block *sb) |
|
{ |
|
return 0; |
|
} |
|
|
|
#ifdef CONFIG_QUOTA |
|
static int f2fs_statfs_project(struct super_block *sb, |
|
kprojid_t projid, struct kstatfs *buf) |
|
{ |
|
struct kqid qid; |
|
struct dquot *dquot; |
|
u64 limit; |
|
u64 curblock; |
|
|
|
qid = make_kqid_projid(projid); |
|
dquot = dqget(sb, qid); |
|
if (IS_ERR(dquot)) |
|
return PTR_ERR(dquot); |
|
spin_lock(&dquot->dq_dqb_lock); |
|
|
|
limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit, |
|
dquot->dq_dqb.dqb_bhardlimit); |
|
if (limit) |
|
limit >>= sb->s_blocksize_bits; |
|
|
|
if (limit && buf->f_blocks > limit) { |
|
curblock = (dquot->dq_dqb.dqb_curspace + |
|
dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits; |
|
buf->f_blocks = limit; |
|
buf->f_bfree = buf->f_bavail = |
|
(buf->f_blocks > curblock) ? |
|
(buf->f_blocks - curblock) : 0; |
|
} |
|
|
|
limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit, |
|
dquot->dq_dqb.dqb_ihardlimit); |
|
|
|
if (limit && buf->f_files > limit) { |
|
buf->f_files = limit; |
|
buf->f_ffree = |
|
(buf->f_files > dquot->dq_dqb.dqb_curinodes) ? |
|
(buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; |
|
} |
|
|
|
spin_unlock(&dquot->dq_dqb_lock); |
|
dqput(dquot); |
|
return 0; |
|
} |
|
#endif |
|
|
|
static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf) |
|
{ |
|
struct super_block *sb = dentry->d_sb; |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
u64 id = huge_encode_dev(sb->s_bdev->bd_dev); |
|
block_t total_count, user_block_count, start_count; |
|
u64 avail_node_count; |
|
|
|
total_count = le64_to_cpu(sbi->raw_super->block_count); |
|
user_block_count = sbi->user_block_count; |
|
start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr); |
|
buf->f_type = F2FS_SUPER_MAGIC; |
|
buf->f_bsize = sbi->blocksize; |
|
|
|
buf->f_blocks = total_count - start_count; |
|
buf->f_bfree = user_block_count - valid_user_blocks(sbi) - |
|
sbi->current_reserved_blocks; |
|
|
|
spin_lock(&sbi->stat_lock); |
|
if (unlikely(buf->f_bfree <= sbi->unusable_block_count)) |
|
buf->f_bfree = 0; |
|
else |
|
buf->f_bfree -= sbi->unusable_block_count; |
|
spin_unlock(&sbi->stat_lock); |
|
|
|
if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks) |
|
buf->f_bavail = buf->f_bfree - |
|
F2FS_OPTION(sbi).root_reserved_blocks; |
|
else |
|
buf->f_bavail = 0; |
|
|
|
avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; |
|
|
|
if (avail_node_count > user_block_count) { |
|
buf->f_files = user_block_count; |
|
buf->f_ffree = buf->f_bavail; |
|
} else { |
|
buf->f_files = avail_node_count; |
|
buf->f_ffree = min(avail_node_count - valid_node_count(sbi), |
|
buf->f_bavail); |
|
} |
|
|
|
buf->f_namelen = F2FS_NAME_LEN; |
|
buf->f_fsid = u64_to_fsid(id); |
|
|
|
#ifdef CONFIG_QUOTA |
|
if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) && |
|
sb_has_quota_limits_enabled(sb, PRJQUOTA)) { |
|
f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf); |
|
} |
|
#endif |
|
return 0; |
|
} |
|
|
|
static inline void f2fs_show_quota_options(struct seq_file *seq, |
|
struct super_block *sb) |
|
{ |
|
#ifdef CONFIG_QUOTA |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
|
|
if (F2FS_OPTION(sbi).s_jquota_fmt) { |
|
char *fmtname = ""; |
|
|
|
switch (F2FS_OPTION(sbi).s_jquota_fmt) { |
|
case QFMT_VFS_OLD: |
|
fmtname = "vfsold"; |
|
break; |
|
case QFMT_VFS_V0: |
|
fmtname = "vfsv0"; |
|
break; |
|
case QFMT_VFS_V1: |
|
fmtname = "vfsv1"; |
|
break; |
|
} |
|
seq_printf(seq, ",jqfmt=%s", fmtname); |
|
} |
|
|
|
if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA]) |
|
seq_show_option(seq, "usrjquota", |
|
F2FS_OPTION(sbi).s_qf_names[USRQUOTA]); |
|
|
|
if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]) |
|
seq_show_option(seq, "grpjquota", |
|
F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]); |
|
|
|
if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) |
|
seq_show_option(seq, "prjjquota", |
|
F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]); |
|
#endif |
|
} |
|
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
static inline void f2fs_show_compress_options(struct seq_file *seq, |
|
struct super_block *sb) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
char *algtype = ""; |
|
int i; |
|
|
|
if (!f2fs_sb_has_compression(sbi)) |
|
return; |
|
|
|
switch (F2FS_OPTION(sbi).compress_algorithm) { |
|
case COMPRESS_LZO: |
|
algtype = "lzo"; |
|
break; |
|
case COMPRESS_LZ4: |
|
algtype = "lz4"; |
|
break; |
|
case COMPRESS_ZSTD: |
|
algtype = "zstd"; |
|
break; |
|
case COMPRESS_LZORLE: |
|
algtype = "lzo-rle"; |
|
break; |
|
} |
|
seq_printf(seq, ",compress_algorithm=%s", algtype); |
|
|
|
if (F2FS_OPTION(sbi).compress_level) |
|
seq_printf(seq, ":%d", F2FS_OPTION(sbi).compress_level); |
|
|
|
seq_printf(seq, ",compress_log_size=%u", |
|
F2FS_OPTION(sbi).compress_log_size); |
|
|
|
for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) { |
|
seq_printf(seq, ",compress_extension=%s", |
|
F2FS_OPTION(sbi).extensions[i]); |
|
} |
|
|
|
for (i = 0; i < F2FS_OPTION(sbi).nocompress_ext_cnt; i++) { |
|
seq_printf(seq, ",nocompress_extension=%s", |
|
F2FS_OPTION(sbi).noextensions[i]); |
|
} |
|
|
|
if (F2FS_OPTION(sbi).compress_chksum) |
|
seq_puts(seq, ",compress_chksum"); |
|
|
|
if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS) |
|
seq_printf(seq, ",compress_mode=%s", "fs"); |
|
else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER) |
|
seq_printf(seq, ",compress_mode=%s", "user"); |
|
|
|
if (test_opt(sbi, COMPRESS_CACHE)) |
|
seq_puts(seq, ",compress_cache"); |
|
} |
|
#endif |
|
|
|
static int f2fs_show_options(struct seq_file *seq, struct dentry *root) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); |
|
|
|
if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC) |
|
seq_printf(seq, ",background_gc=%s", "sync"); |
|
else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON) |
|
seq_printf(seq, ",background_gc=%s", "on"); |
|
else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF) |
|
seq_printf(seq, ",background_gc=%s", "off"); |
|
|
|
if (test_opt(sbi, GC_MERGE)) |
|
seq_puts(seq, ",gc_merge"); |
|
|
|
if (test_opt(sbi, DISABLE_ROLL_FORWARD)) |
|
seq_puts(seq, ",disable_roll_forward"); |
|
if (test_opt(sbi, NORECOVERY)) |
|
seq_puts(seq, ",norecovery"); |
|
if (test_opt(sbi, DISCARD)) |
|
seq_puts(seq, ",discard"); |
|
else |
|
seq_puts(seq, ",nodiscard"); |
|
if (test_opt(sbi, NOHEAP)) |
|
seq_puts(seq, ",no_heap"); |
|
else |
|
seq_puts(seq, ",heap"); |
|
#ifdef CONFIG_F2FS_FS_XATTR |
|
if (test_opt(sbi, XATTR_USER)) |
|
seq_puts(seq, ",user_xattr"); |
|
else |
|
seq_puts(seq, ",nouser_xattr"); |
|
if (test_opt(sbi, INLINE_XATTR)) |
|
seq_puts(seq, ",inline_xattr"); |
|
else |
|
seq_puts(seq, ",noinline_xattr"); |
|
if (test_opt(sbi, INLINE_XATTR_SIZE)) |
|
seq_printf(seq, ",inline_xattr_size=%u", |
|
F2FS_OPTION(sbi).inline_xattr_size); |
|
#endif |
|
#ifdef CONFIG_F2FS_FS_POSIX_ACL |
|
if (test_opt(sbi, POSIX_ACL)) |
|
seq_puts(seq, ",acl"); |
|
else |
|
seq_puts(seq, ",noacl"); |
|
#endif |
|
if (test_opt(sbi, DISABLE_EXT_IDENTIFY)) |
|
seq_puts(seq, ",disable_ext_identify"); |
|
if (test_opt(sbi, INLINE_DATA)) |
|
seq_puts(seq, ",inline_data"); |
|
else |
|
seq_puts(seq, ",noinline_data"); |
|
if (test_opt(sbi, INLINE_DENTRY)) |
|
seq_puts(seq, ",inline_dentry"); |
|
else |
|
seq_puts(seq, ",noinline_dentry"); |
|
if (!f2fs_readonly(sbi->sb) && test_opt(sbi, FLUSH_MERGE)) |
|
seq_puts(seq, ",flush_merge"); |
|
if (test_opt(sbi, NOBARRIER)) |
|
seq_puts(seq, ",nobarrier"); |
|
if (test_opt(sbi, FASTBOOT)) |
|
seq_puts(seq, ",fastboot"); |
|
if (test_opt(sbi, EXTENT_CACHE)) |
|
seq_puts(seq, ",extent_cache"); |
|
else |
|
seq_puts(seq, ",noextent_cache"); |
|
if (test_opt(sbi, DATA_FLUSH)) |
|
seq_puts(seq, ",data_flush"); |
|
|
|
seq_puts(seq, ",mode="); |
|
if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE) |
|
seq_puts(seq, "adaptive"); |
|
else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS) |
|
seq_puts(seq, "lfs"); |
|
seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs); |
|
if (test_opt(sbi, RESERVE_ROOT)) |
|
seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u", |
|
F2FS_OPTION(sbi).root_reserved_blocks, |
|
from_kuid_munged(&init_user_ns, |
|
F2FS_OPTION(sbi).s_resuid), |
|
from_kgid_munged(&init_user_ns, |
|
F2FS_OPTION(sbi).s_resgid)); |
|
if (F2FS_IO_SIZE_BITS(sbi)) |
|
seq_printf(seq, ",io_bits=%u", |
|
F2FS_OPTION(sbi).write_io_size_bits); |
|
#ifdef CONFIG_F2FS_FAULT_INJECTION |
|
if (test_opt(sbi, FAULT_INJECTION)) { |
|
seq_printf(seq, ",fault_injection=%u", |
|
F2FS_OPTION(sbi).fault_info.inject_rate); |
|
seq_printf(seq, ",fault_type=%u", |
|
F2FS_OPTION(sbi).fault_info.inject_type); |
|
} |
|
#endif |
|
#ifdef CONFIG_QUOTA |
|
if (test_opt(sbi, QUOTA)) |
|
seq_puts(seq, ",quota"); |
|
if (test_opt(sbi, USRQUOTA)) |
|
seq_puts(seq, ",usrquota"); |
|
if (test_opt(sbi, GRPQUOTA)) |
|
seq_puts(seq, ",grpquota"); |
|
if (test_opt(sbi, PRJQUOTA)) |
|
seq_puts(seq, ",prjquota"); |
|
#endif |
|
f2fs_show_quota_options(seq, sbi->sb); |
|
if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_USER) |
|
seq_printf(seq, ",whint_mode=%s", "user-based"); |
|
else if (F2FS_OPTION(sbi).whint_mode == WHINT_MODE_FS) |
|
seq_printf(seq, ",whint_mode=%s", "fs-based"); |
|
|
|
fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb); |
|
|
|
if (sbi->sb->s_flags & SB_INLINECRYPT) |
|
seq_puts(seq, ",inlinecrypt"); |
|
|
|
if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT) |
|
seq_printf(seq, ",alloc_mode=%s", "default"); |
|
else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE) |
|
seq_printf(seq, ",alloc_mode=%s", "reuse"); |
|
|
|
if (test_opt(sbi, DISABLE_CHECKPOINT)) |
|
seq_printf(seq, ",checkpoint=disable:%u", |
|
F2FS_OPTION(sbi).unusable_cap); |
|
if (test_opt(sbi, MERGE_CHECKPOINT)) |
|
seq_puts(seq, ",checkpoint_merge"); |
|
else |
|
seq_puts(seq, ",nocheckpoint_merge"); |
|
if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX) |
|
seq_printf(seq, ",fsync_mode=%s", "posix"); |
|
else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) |
|
seq_printf(seq, ",fsync_mode=%s", "strict"); |
|
else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER) |
|
seq_printf(seq, ",fsync_mode=%s", "nobarrier"); |
|
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
f2fs_show_compress_options(seq, sbi->sb); |
|
#endif |
|
|
|
if (test_opt(sbi, ATGC)) |
|
seq_puts(seq, ",atgc"); |
|
return 0; |
|
} |
|
|
|
static void default_options(struct f2fs_sb_info *sbi) |
|
{ |
|
/* init some FS parameters */ |
|
if (f2fs_sb_has_readonly(sbi)) |
|
F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE; |
|
else |
|
F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE; |
|
|
|
F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS; |
|
F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF; |
|
F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT; |
|
F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX; |
|
F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID); |
|
F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID); |
|
F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4; |
|
F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE; |
|
F2FS_OPTION(sbi).compress_ext_cnt = 0; |
|
F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS; |
|
F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON; |
|
|
|
sbi->sb->s_flags &= ~SB_INLINECRYPT; |
|
|
|
set_opt(sbi, INLINE_XATTR); |
|
set_opt(sbi, INLINE_DATA); |
|
set_opt(sbi, INLINE_DENTRY); |
|
set_opt(sbi, EXTENT_CACHE); |
|
set_opt(sbi, NOHEAP); |
|
clear_opt(sbi, DISABLE_CHECKPOINT); |
|
set_opt(sbi, MERGE_CHECKPOINT); |
|
F2FS_OPTION(sbi).unusable_cap = 0; |
|
sbi->sb->s_flags |= SB_LAZYTIME; |
|
set_opt(sbi, FLUSH_MERGE); |
|
set_opt(sbi, DISCARD); |
|
if (f2fs_sb_has_blkzoned(sbi)) |
|
F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS; |
|
else |
|
F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE; |
|
|
|
#ifdef CONFIG_F2FS_FS_XATTR |
|
set_opt(sbi, XATTR_USER); |
|
#endif |
|
#ifdef CONFIG_F2FS_FS_POSIX_ACL |
|
set_opt(sbi, POSIX_ACL); |
|
#endif |
|
|
|
f2fs_build_fault_attr(sbi, 0, 0); |
|
} |
|
|
|
#ifdef CONFIG_QUOTA |
|
static int f2fs_enable_quotas(struct super_block *sb); |
|
#endif |
|
|
|
static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi) |
|
{ |
|
unsigned int s_flags = sbi->sb->s_flags; |
|
struct cp_control cpc; |
|
int err = 0; |
|
int ret; |
|
block_t unusable; |
|
|
|
if (s_flags & SB_RDONLY) { |
|
f2fs_err(sbi, "checkpoint=disable on readonly fs"); |
|
return -EINVAL; |
|
} |
|
sbi->sb->s_flags |= SB_ACTIVE; |
|
|
|
f2fs_update_time(sbi, DISABLE_TIME); |
|
|
|
while (!f2fs_time_over(sbi, DISABLE_TIME)) { |
|
down_write(&sbi->gc_lock); |
|
err = f2fs_gc(sbi, true, false, false, NULL_SEGNO); |
|
if (err == -ENODATA) { |
|
err = 0; |
|
break; |
|
} |
|
if (err && err != -EAGAIN) |
|
break; |
|
} |
|
|
|
ret = sync_filesystem(sbi->sb); |
|
if (ret || err) { |
|
err = ret ? ret : err; |
|
goto restore_flag; |
|
} |
|
|
|
unusable = f2fs_get_unusable_blocks(sbi); |
|
if (f2fs_disable_cp_again(sbi, unusable)) { |
|
err = -EAGAIN; |
|
goto restore_flag; |
|
} |
|
|
|
down_write(&sbi->gc_lock); |
|
cpc.reason = CP_PAUSE; |
|
set_sbi_flag(sbi, SBI_CP_DISABLED); |
|
err = f2fs_write_checkpoint(sbi, &cpc); |
|
if (err) |
|
goto out_unlock; |
|
|
|
spin_lock(&sbi->stat_lock); |
|
sbi->unusable_block_count = unusable; |
|
spin_unlock(&sbi->stat_lock); |
|
|
|
out_unlock: |
|
up_write(&sbi->gc_lock); |
|
restore_flag: |
|
sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */ |
|
return err; |
|
} |
|
|
|
static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi) |
|
{ |
|
/* we should flush all the data to keep data consistency */ |
|
sync_inodes_sb(sbi->sb); |
|
|
|
down_write(&sbi->gc_lock); |
|
f2fs_dirty_to_prefree(sbi); |
|
|
|
clear_sbi_flag(sbi, SBI_CP_DISABLED); |
|
set_sbi_flag(sbi, SBI_IS_DIRTY); |
|
up_write(&sbi->gc_lock); |
|
|
|
f2fs_sync_fs(sbi->sb, 1); |
|
} |
|
|
|
static int f2fs_remount(struct super_block *sb, int *flags, char *data) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
struct f2fs_mount_info org_mount_opt; |
|
unsigned long old_sb_flags; |
|
int err; |
|
bool need_restart_gc = false, need_stop_gc = false; |
|
bool need_restart_ckpt = false, need_stop_ckpt = false; |
|
bool need_restart_flush = false, need_stop_flush = false; |
|
bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); |
|
bool disable_checkpoint = test_opt(sbi, DISABLE_CHECKPOINT); |
|
bool no_io_align = !F2FS_IO_ALIGNED(sbi); |
|
bool no_atgc = !test_opt(sbi, ATGC); |
|
bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE); |
|
bool checkpoint_changed; |
|
#ifdef CONFIG_QUOTA |
|
int i, j; |
|
#endif |
|
|
|
/* |
|
* Save the old mount options in case we |
|
* need to restore them. |
|
*/ |
|
org_mount_opt = sbi->mount_opt; |
|
old_sb_flags = sb->s_flags; |
|
|
|
#ifdef CONFIG_QUOTA |
|
org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt; |
|
for (i = 0; i < MAXQUOTAS; i++) { |
|
if (F2FS_OPTION(sbi).s_qf_names[i]) { |
|
org_mount_opt.s_qf_names[i] = |
|
kstrdup(F2FS_OPTION(sbi).s_qf_names[i], |
|
GFP_KERNEL); |
|
if (!org_mount_opt.s_qf_names[i]) { |
|
for (j = 0; j < i; j++) |
|
kfree(org_mount_opt.s_qf_names[j]); |
|
return -ENOMEM; |
|
} |
|
} else { |
|
org_mount_opt.s_qf_names[i] = NULL; |
|
} |
|
} |
|
#endif |
|
|
|
/* recover superblocks we couldn't write due to previous RO mount */ |
|
if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) { |
|
err = f2fs_commit_super(sbi, false); |
|
f2fs_info(sbi, "Try to recover all the superblocks, ret: %d", |
|
err); |
|
if (!err) |
|
clear_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
|
} |
|
|
|
default_options(sbi); |
|
|
|
/* parse mount options */ |
|
err = parse_options(sb, data, true); |
|
if (err) |
|
goto restore_opts; |
|
checkpoint_changed = |
|
disable_checkpoint != test_opt(sbi, DISABLE_CHECKPOINT); |
|
|
|
/* |
|
* Previous and new state of filesystem is RO, |
|
* so skip checking GC and FLUSH_MERGE conditions. |
|
*/ |
|
if (f2fs_readonly(sb) && (*flags & SB_RDONLY)) |
|
goto skip; |
|
|
|
if (f2fs_sb_has_readonly(sbi) && !(*flags & SB_RDONLY)) { |
|
err = -EROFS; |
|
goto restore_opts; |
|
} |
|
|
|
#ifdef CONFIG_QUOTA |
|
if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) { |
|
err = dquot_suspend(sb, -1); |
|
if (err < 0) |
|
goto restore_opts; |
|
} else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) { |
|
/* dquot_resume needs RW */ |
|
sb->s_flags &= ~SB_RDONLY; |
|
if (sb_any_quota_suspended(sb)) { |
|
dquot_resume(sb, -1); |
|
} else if (f2fs_sb_has_quota_ino(sbi)) { |
|
err = f2fs_enable_quotas(sb); |
|
if (err) |
|
goto restore_opts; |
|
} |
|
} |
|
#endif |
|
/* disallow enable atgc dynamically */ |
|
if (no_atgc == !!test_opt(sbi, ATGC)) { |
|
err = -EINVAL; |
|
f2fs_warn(sbi, "switch atgc option is not allowed"); |
|
goto restore_opts; |
|
} |
|
|
|
/* disallow enable/disable extent_cache dynamically */ |
|
if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { |
|
err = -EINVAL; |
|
f2fs_warn(sbi, "switch extent_cache option is not allowed"); |
|
goto restore_opts; |
|
} |
|
|
|
if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) { |
|
err = -EINVAL; |
|
f2fs_warn(sbi, "switch io_bits option is not allowed"); |
|
goto restore_opts; |
|
} |
|
|
|
if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) { |
|
err = -EINVAL; |
|
f2fs_warn(sbi, "switch compress_cache option is not allowed"); |
|
goto restore_opts; |
|
} |
|
|
|
if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) { |
|
err = -EINVAL; |
|
f2fs_warn(sbi, "disabling checkpoint not compatible with read-only"); |
|
goto restore_opts; |
|
} |
|
|
|
/* |
|
* We stop the GC thread if FS is mounted as RO |
|
* or if background_gc = off is passed in mount |
|
* option. Also sync the filesystem. |
|
*/ |
|
if ((*flags & SB_RDONLY) || |
|
(F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF && |
|
!test_opt(sbi, GC_MERGE))) { |
|
if (sbi->gc_thread) { |
|
f2fs_stop_gc_thread(sbi); |
|
need_restart_gc = true; |
|
} |
|
} else if (!sbi->gc_thread) { |
|
err = f2fs_start_gc_thread(sbi); |
|
if (err) |
|
goto restore_opts; |
|
need_stop_gc = true; |
|
} |
|
|
|
if (*flags & SB_RDONLY || |
|
F2FS_OPTION(sbi).whint_mode != org_mount_opt.whint_mode) { |
|
sync_inodes_sb(sb); |
|
|
|
set_sbi_flag(sbi, SBI_IS_DIRTY); |
|
set_sbi_flag(sbi, SBI_IS_CLOSE); |
|
f2fs_sync_fs(sb, 1); |
|
clear_sbi_flag(sbi, SBI_IS_CLOSE); |
|
} |
|
|
|
if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) || |
|
!test_opt(sbi, MERGE_CHECKPOINT)) { |
|
f2fs_stop_ckpt_thread(sbi); |
|
need_restart_ckpt = true; |
|
} else { |
|
err = f2fs_start_ckpt_thread(sbi); |
|
if (err) { |
|
f2fs_err(sbi, |
|
"Failed to start F2FS issue_checkpoint_thread (%d)", |
|
err); |
|
goto restore_gc; |
|
} |
|
need_stop_ckpt = true; |
|
} |
|
|
|
/* |
|
* We stop issue flush thread if FS is mounted as RO |
|
* or if flush_merge is not passed in mount option. |
|
*/ |
|
if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) { |
|
clear_opt(sbi, FLUSH_MERGE); |
|
f2fs_destroy_flush_cmd_control(sbi, false); |
|
need_restart_flush = true; |
|
} else { |
|
err = f2fs_create_flush_cmd_control(sbi); |
|
if (err) |
|
goto restore_ckpt; |
|
need_stop_flush = true; |
|
} |
|
|
|
if (checkpoint_changed) { |
|
if (test_opt(sbi, DISABLE_CHECKPOINT)) { |
|
err = f2fs_disable_checkpoint(sbi); |
|
if (err) |
|
goto restore_flush; |
|
} else { |
|
f2fs_enable_checkpoint(sbi); |
|
} |
|
} |
|
|
|
skip: |
|
#ifdef CONFIG_QUOTA |
|
/* Release old quota file names */ |
|
for (i = 0; i < MAXQUOTAS; i++) |
|
kfree(org_mount_opt.s_qf_names[i]); |
|
#endif |
|
/* Update the POSIXACL Flag */ |
|
sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
|
(test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); |
|
|
|
limit_reserve_root(sbi); |
|
adjust_unusable_cap_perc(sbi); |
|
*flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME); |
|
return 0; |
|
restore_flush: |
|
if (need_restart_flush) { |
|
if (f2fs_create_flush_cmd_control(sbi)) |
|
f2fs_warn(sbi, "background flush thread has stopped"); |
|
} else if (need_stop_flush) { |
|
clear_opt(sbi, FLUSH_MERGE); |
|
f2fs_destroy_flush_cmd_control(sbi, false); |
|
} |
|
restore_ckpt: |
|
if (need_restart_ckpt) { |
|
if (f2fs_start_ckpt_thread(sbi)) |
|
f2fs_warn(sbi, "background ckpt thread has stopped"); |
|
} else if (need_stop_ckpt) { |
|
f2fs_stop_ckpt_thread(sbi); |
|
} |
|
restore_gc: |
|
if (need_restart_gc) { |
|
if (f2fs_start_gc_thread(sbi)) |
|
f2fs_warn(sbi, "background gc thread has stopped"); |
|
} else if (need_stop_gc) { |
|
f2fs_stop_gc_thread(sbi); |
|
} |
|
restore_opts: |
|
#ifdef CONFIG_QUOTA |
|
F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt; |
|
for (i = 0; i < MAXQUOTAS; i++) { |
|
kfree(F2FS_OPTION(sbi).s_qf_names[i]); |
|
F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i]; |
|
} |
|
#endif |
|
sbi->mount_opt = org_mount_opt; |
|
sb->s_flags = old_sb_flags; |
|
return err; |
|
} |
|
|
|
#ifdef CONFIG_QUOTA |
|
/* Read data from quotafile */ |
|
static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data, |
|
size_t len, loff_t off) |
|
{ |
|
struct inode *inode = sb_dqopt(sb)->files[type]; |
|
struct address_space *mapping = inode->i_mapping; |
|
block_t blkidx = F2FS_BYTES_TO_BLK(off); |
|
int offset = off & (sb->s_blocksize - 1); |
|
int tocopy; |
|
size_t toread; |
|
loff_t i_size = i_size_read(inode); |
|
struct page *page; |
|
char *kaddr; |
|
|
|
if (off > i_size) |
|
return 0; |
|
|
|
if (off + len > i_size) |
|
len = i_size - off; |
|
toread = len; |
|
while (toread > 0) { |
|
tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread); |
|
repeat: |
|
page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS); |
|
if (IS_ERR(page)) { |
|
if (PTR_ERR(page) == -ENOMEM) { |
|
congestion_wait(BLK_RW_ASYNC, |
|
DEFAULT_IO_TIMEOUT); |
|
goto repeat; |
|
} |
|
set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
|
return PTR_ERR(page); |
|
} |
|
|
|
lock_page(page); |
|
|
|
if (unlikely(page->mapping != mapping)) { |
|
f2fs_put_page(page, 1); |
|
goto repeat; |
|
} |
|
if (unlikely(!PageUptodate(page))) { |
|
f2fs_put_page(page, 1); |
|
set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
|
return -EIO; |
|
} |
|
|
|
kaddr = kmap_atomic(page); |
|
memcpy(data, kaddr + offset, tocopy); |
|
kunmap_atomic(kaddr); |
|
f2fs_put_page(page, 1); |
|
|
|
offset = 0; |
|
toread -= tocopy; |
|
data += tocopy; |
|
blkidx++; |
|
} |
|
return len; |
|
} |
|
|
|
/* Write to quotafile */ |
|
static ssize_t f2fs_quota_write(struct super_block *sb, int type, |
|
const char *data, size_t len, loff_t off) |
|
{ |
|
struct inode *inode = sb_dqopt(sb)->files[type]; |
|
struct address_space *mapping = inode->i_mapping; |
|
const struct address_space_operations *a_ops = mapping->a_ops; |
|
int offset = off & (sb->s_blocksize - 1); |
|
size_t towrite = len; |
|
struct page *page; |
|
void *fsdata = NULL; |
|
char *kaddr; |
|
int err = 0; |
|
int tocopy; |
|
|
|
while (towrite > 0) { |
|
tocopy = min_t(unsigned long, sb->s_blocksize - offset, |
|
towrite); |
|
retry: |
|
err = a_ops->write_begin(NULL, mapping, off, tocopy, 0, |
|
&page, &fsdata); |
|
if (unlikely(err)) { |
|
if (err == -ENOMEM) { |
|
congestion_wait(BLK_RW_ASYNC, |
|
DEFAULT_IO_TIMEOUT); |
|
goto retry; |
|
} |
|
set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
|
break; |
|
} |
|
|
|
kaddr = kmap_atomic(page); |
|
memcpy(kaddr + offset, data, tocopy); |
|
kunmap_atomic(kaddr); |
|
flush_dcache_page(page); |
|
|
|
a_ops->write_end(NULL, mapping, off, tocopy, tocopy, |
|
page, fsdata); |
|
offset = 0; |
|
towrite -= tocopy; |
|
off += tocopy; |
|
data += tocopy; |
|
cond_resched(); |
|
} |
|
|
|
if (len == towrite) |
|
return err; |
|
inode->i_mtime = inode->i_ctime = current_time(inode); |
|
f2fs_mark_inode_dirty_sync(inode, false); |
|
return len - towrite; |
|
} |
|
|
|
static struct dquot **f2fs_get_dquots(struct inode *inode) |
|
{ |
|
return F2FS_I(inode)->i_dquot; |
|
} |
|
|
|
static qsize_t *f2fs_get_reserved_space(struct inode *inode) |
|
{ |
|
return &F2FS_I(inode)->i_reserved_quota; |
|
} |
|
|
|
static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type) |
|
{ |
|
if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) { |
|
f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it"); |
|
return 0; |
|
} |
|
|
|
return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type], |
|
F2FS_OPTION(sbi).s_jquota_fmt, type); |
|
} |
|
|
|
int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly) |
|
{ |
|
int enabled = 0; |
|
int i, err; |
|
|
|
if (f2fs_sb_has_quota_ino(sbi) && rdonly) { |
|
err = f2fs_enable_quotas(sbi->sb); |
|
if (err) { |
|
f2fs_err(sbi, "Cannot turn on quota_ino: %d", err); |
|
return 0; |
|
} |
|
return 1; |
|
} |
|
|
|
for (i = 0; i < MAXQUOTAS; i++) { |
|
if (F2FS_OPTION(sbi).s_qf_names[i]) { |
|
err = f2fs_quota_on_mount(sbi, i); |
|
if (!err) { |
|
enabled = 1; |
|
continue; |
|
} |
|
f2fs_err(sbi, "Cannot turn on quotas: %d on %d", |
|
err, i); |
|
} |
|
} |
|
return enabled; |
|
} |
|
|
|
static int f2fs_quota_enable(struct super_block *sb, int type, int format_id, |
|
unsigned int flags) |
|
{ |
|
struct inode *qf_inode; |
|
unsigned long qf_inum; |
|
int err; |
|
|
|
BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb))); |
|
|
|
qf_inum = f2fs_qf_ino(sb, type); |
|
if (!qf_inum) |
|
return -EPERM; |
|
|
|
qf_inode = f2fs_iget(sb, qf_inum); |
|
if (IS_ERR(qf_inode)) { |
|
f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum); |
|
return PTR_ERR(qf_inode); |
|
} |
|
|
|
/* Don't account quota for quota files to avoid recursion */ |
|
qf_inode->i_flags |= S_NOQUOTA; |
|
err = dquot_load_quota_inode(qf_inode, type, format_id, flags); |
|
iput(qf_inode); |
|
return err; |
|
} |
|
|
|
static int f2fs_enable_quotas(struct super_block *sb) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
int type, err = 0; |
|
unsigned long qf_inum; |
|
bool quota_mopt[MAXQUOTAS] = { |
|
test_opt(sbi, USRQUOTA), |
|
test_opt(sbi, GRPQUOTA), |
|
test_opt(sbi, PRJQUOTA), |
|
}; |
|
|
|
if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) { |
|
f2fs_err(sbi, "quota file may be corrupted, skip loading it"); |
|
return 0; |
|
} |
|
|
|
sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE; |
|
|
|
for (type = 0; type < MAXQUOTAS; type++) { |
|
qf_inum = f2fs_qf_ino(sb, type); |
|
if (qf_inum) { |
|
err = f2fs_quota_enable(sb, type, QFMT_VFS_V1, |
|
DQUOT_USAGE_ENABLED | |
|
(quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0)); |
|
if (err) { |
|
f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.", |
|
type, err); |
|
for (type--; type >= 0; type--) |
|
dquot_quota_off(sb, type); |
|
set_sbi_flag(F2FS_SB(sb), |
|
SBI_QUOTA_NEED_REPAIR); |
|
return err; |
|
} |
|
} |
|
} |
|
return 0; |
|
} |
|
|
|
int f2fs_quota_sync(struct super_block *sb, int type) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
struct quota_info *dqopt = sb_dqopt(sb); |
|
int cnt; |
|
int ret; |
|
|
|
/* |
|
* do_quotactl |
|
* f2fs_quota_sync |
|
* down_read(quota_sem) |
|
* dquot_writeback_dquots() |
|
* f2fs_dquot_commit |
|
* block_operation |
|
* down_read(quota_sem) |
|
*/ |
|
f2fs_lock_op(sbi); |
|
|
|
down_read(&sbi->quota_sem); |
|
ret = dquot_writeback_dquots(sb, type); |
|
if (ret) |
|
goto out; |
|
|
|
/* |
|
* Now when everything is written we can discard the pagecache so |
|
* that userspace sees the changes. |
|
*/ |
|
for (cnt = 0; cnt < MAXQUOTAS; cnt++) { |
|
struct address_space *mapping; |
|
|
|
if (type != -1 && cnt != type) |
|
continue; |
|
if (!sb_has_quota_active(sb, cnt)) |
|
continue; |
|
|
|
mapping = dqopt->files[cnt]->i_mapping; |
|
|
|
ret = filemap_fdatawrite(mapping); |
|
if (ret) |
|
goto out; |
|
|
|
/* if we are using journalled quota */ |
|
if (is_journalled_quota(sbi)) |
|
continue; |
|
|
|
ret = filemap_fdatawait(mapping); |
|
if (ret) |
|
set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
|
|
|
inode_lock(dqopt->files[cnt]); |
|
truncate_inode_pages(&dqopt->files[cnt]->i_data, 0); |
|
inode_unlock(dqopt->files[cnt]); |
|
} |
|
out: |
|
if (ret) |
|
set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
|
up_read(&sbi->quota_sem); |
|
f2fs_unlock_op(sbi); |
|
return ret; |
|
} |
|
|
|
static int f2fs_quota_on(struct super_block *sb, int type, int format_id, |
|
const struct path *path) |
|
{ |
|
struct inode *inode; |
|
int err; |
|
|
|
/* if quota sysfile exists, deny enabling quota with specific file */ |
|
if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) { |
|
f2fs_err(F2FS_SB(sb), "quota sysfile already exists"); |
|
return -EBUSY; |
|
} |
|
|
|
err = f2fs_quota_sync(sb, type); |
|
if (err) |
|
return err; |
|
|
|
err = dquot_quota_on(sb, type, format_id, path); |
|
if (err) |
|
return err; |
|
|
|
inode = d_inode(path->dentry); |
|
|
|
inode_lock(inode); |
|
F2FS_I(inode)->i_flags |= F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL; |
|
f2fs_set_inode_flags(inode); |
|
inode_unlock(inode); |
|
f2fs_mark_inode_dirty_sync(inode, false); |
|
|
|
return 0; |
|
} |
|
|
|
static int __f2fs_quota_off(struct super_block *sb, int type) |
|
{ |
|
struct inode *inode = sb_dqopt(sb)->files[type]; |
|
int err; |
|
|
|
if (!inode || !igrab(inode)) |
|
return dquot_quota_off(sb, type); |
|
|
|
err = f2fs_quota_sync(sb, type); |
|
if (err) |
|
goto out_put; |
|
|
|
err = dquot_quota_off(sb, type); |
|
if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb))) |
|
goto out_put; |
|
|
|
inode_lock(inode); |
|
F2FS_I(inode)->i_flags &= ~(F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL); |
|
f2fs_set_inode_flags(inode); |
|
inode_unlock(inode); |
|
f2fs_mark_inode_dirty_sync(inode, false); |
|
out_put: |
|
iput(inode); |
|
return err; |
|
} |
|
|
|
static int f2fs_quota_off(struct super_block *sb, int type) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
int err; |
|
|
|
err = __f2fs_quota_off(sb, type); |
|
|
|
/* |
|
* quotactl can shutdown journalled quota, result in inconsistence |
|
* between quota record and fs data by following updates, tag the |
|
* flag to let fsck be aware of it. |
|
*/ |
|
if (is_journalled_quota(sbi)) |
|
set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); |
|
return err; |
|
} |
|
|
|
void f2fs_quota_off_umount(struct super_block *sb) |
|
{ |
|
int type; |
|
int err; |
|
|
|
for (type = 0; type < MAXQUOTAS; type++) { |
|
err = __f2fs_quota_off(sb, type); |
|
if (err) { |
|
int ret = dquot_quota_off(sb, type); |
|
|
|
f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.", |
|
type, err, ret); |
|
set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR); |
|
} |
|
} |
|
/* |
|
* In case of checkpoint=disable, we must flush quota blocks. |
|
* This can cause NULL exception for node_inode in end_io, since |
|
* put_super already dropped it. |
|
*/ |
|
sync_filesystem(sb); |
|
} |
|
|
|
static void f2fs_truncate_quota_inode_pages(struct super_block *sb) |
|
{ |
|
struct quota_info *dqopt = sb_dqopt(sb); |
|
int type; |
|
|
|
for (type = 0; type < MAXQUOTAS; type++) { |
|
if (!dqopt->files[type]) |
|
continue; |
|
f2fs_inode_synced(dqopt->files[type]); |
|
} |
|
} |
|
|
|
static int f2fs_dquot_commit(struct dquot *dquot) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb); |
|
int ret; |
|
|
|
down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING); |
|
ret = dquot_commit(dquot); |
|
if (ret < 0) |
|
set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); |
|
up_read(&sbi->quota_sem); |
|
return ret; |
|
} |
|
|
|
static int f2fs_dquot_acquire(struct dquot *dquot) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb); |
|
int ret; |
|
|
|
down_read(&sbi->quota_sem); |
|
ret = dquot_acquire(dquot); |
|
if (ret < 0) |
|
set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); |
|
up_read(&sbi->quota_sem); |
|
return ret; |
|
} |
|
|
|
static int f2fs_dquot_release(struct dquot *dquot) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb); |
|
int ret = dquot_release(dquot); |
|
|
|
if (ret < 0) |
|
set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); |
|
return ret; |
|
} |
|
|
|
static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot) |
|
{ |
|
struct super_block *sb = dquot->dq_sb; |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
int ret = dquot_mark_dquot_dirty(dquot); |
|
|
|
/* if we are using journalled quota */ |
|
if (is_journalled_quota(sbi)) |
|
set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH); |
|
|
|
return ret; |
|
} |
|
|
|
static int f2fs_dquot_commit_info(struct super_block *sb, int type) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
int ret = dquot_commit_info(sb, type); |
|
|
|
if (ret < 0) |
|
set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); |
|
return ret; |
|
} |
|
|
|
static int f2fs_get_projid(struct inode *inode, kprojid_t *projid) |
|
{ |
|
*projid = F2FS_I(inode)->i_projid; |
|
return 0; |
|
} |
|
|
|
static const struct dquot_operations f2fs_quota_operations = { |
|
.get_reserved_space = f2fs_get_reserved_space, |
|
.write_dquot = f2fs_dquot_commit, |
|
.acquire_dquot = f2fs_dquot_acquire, |
|
.release_dquot = f2fs_dquot_release, |
|
.mark_dirty = f2fs_dquot_mark_dquot_dirty, |
|
.write_info = f2fs_dquot_commit_info, |
|
.alloc_dquot = dquot_alloc, |
|
.destroy_dquot = dquot_destroy, |
|
.get_projid = f2fs_get_projid, |
|
.get_next_id = dquot_get_next_id, |
|
}; |
|
|
|
static const struct quotactl_ops f2fs_quotactl_ops = { |
|
.quota_on = f2fs_quota_on, |
|
.quota_off = f2fs_quota_off, |
|
.quota_sync = f2fs_quota_sync, |
|
.get_state = dquot_get_state, |
|
.set_info = dquot_set_dqinfo, |
|
.get_dqblk = dquot_get_dqblk, |
|
.set_dqblk = dquot_set_dqblk, |
|
.get_nextdqblk = dquot_get_next_dqblk, |
|
}; |
|
#else |
|
int f2fs_quota_sync(struct super_block *sb, int type) |
|
{ |
|
return 0; |
|
} |
|
|
|
void f2fs_quota_off_umount(struct super_block *sb) |
|
{ |
|
} |
|
#endif |
|
|
|
static const struct super_operations f2fs_sops = { |
|
.alloc_inode = f2fs_alloc_inode, |
|
.free_inode = f2fs_free_inode, |
|
.drop_inode = f2fs_drop_inode, |
|
.write_inode = f2fs_write_inode, |
|
.dirty_inode = f2fs_dirty_inode, |
|
.show_options = f2fs_show_options, |
|
#ifdef CONFIG_QUOTA |
|
.quota_read = f2fs_quota_read, |
|
.quota_write = f2fs_quota_write, |
|
.get_dquots = f2fs_get_dquots, |
|
#endif |
|
.evict_inode = f2fs_evict_inode, |
|
.put_super = f2fs_put_super, |
|
.sync_fs = f2fs_sync_fs, |
|
.freeze_fs = f2fs_freeze, |
|
.unfreeze_fs = f2fs_unfreeze, |
|
.statfs = f2fs_statfs, |
|
.remount_fs = f2fs_remount, |
|
}; |
|
|
|
#ifdef CONFIG_FS_ENCRYPTION |
|
static int f2fs_get_context(struct inode *inode, void *ctx, size_t len) |
|
{ |
|
return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, |
|
F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, |
|
ctx, len, NULL); |
|
} |
|
|
|
static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len, |
|
void *fs_data) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(inode); |
|
|
|
/* |
|
* Encrypting the root directory is not allowed because fsck |
|
* expects lost+found directory to exist and remain unencrypted |
|
* if LOST_FOUND feature is enabled. |
|
* |
|
*/ |
|
if (f2fs_sb_has_lost_found(sbi) && |
|
inode->i_ino == F2FS_ROOT_INO(sbi)) |
|
return -EPERM; |
|
|
|
return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION, |
|
F2FS_XATTR_NAME_ENCRYPTION_CONTEXT, |
|
ctx, len, fs_data, XATTR_CREATE); |
|
} |
|
|
|
static const union fscrypt_policy *f2fs_get_dummy_policy(struct super_block *sb) |
|
{ |
|
return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_policy.policy; |
|
} |
|
|
|
static bool f2fs_has_stable_inodes(struct super_block *sb) |
|
{ |
|
return true; |
|
} |
|
|
|
static void f2fs_get_ino_and_lblk_bits(struct super_block *sb, |
|
int *ino_bits_ret, int *lblk_bits_ret) |
|
{ |
|
*ino_bits_ret = 8 * sizeof(nid_t); |
|
*lblk_bits_ret = 8 * sizeof(block_t); |
|
} |
|
|
|
static int f2fs_get_num_devices(struct super_block *sb) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
|
|
if (f2fs_is_multi_device(sbi)) |
|
return sbi->s_ndevs; |
|
return 1; |
|
} |
|
|
|
static void f2fs_get_devices(struct super_block *sb, |
|
struct request_queue **devs) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
int i; |
|
|
|
for (i = 0; i < sbi->s_ndevs; i++) |
|
devs[i] = bdev_get_queue(FDEV(i).bdev); |
|
} |
|
|
|
static const struct fscrypt_operations f2fs_cryptops = { |
|
.key_prefix = "f2fs:", |
|
.get_context = f2fs_get_context, |
|
.set_context = f2fs_set_context, |
|
.get_dummy_policy = f2fs_get_dummy_policy, |
|
.empty_dir = f2fs_empty_dir, |
|
.max_namelen = F2FS_NAME_LEN, |
|
.has_stable_inodes = f2fs_has_stable_inodes, |
|
.get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits, |
|
.get_num_devices = f2fs_get_num_devices, |
|
.get_devices = f2fs_get_devices, |
|
}; |
|
#endif |
|
|
|
static struct inode *f2fs_nfs_get_inode(struct super_block *sb, |
|
u64 ino, u32 generation) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
struct inode *inode; |
|
|
|
if (f2fs_check_nid_range(sbi, ino)) |
|
return ERR_PTR(-ESTALE); |
|
|
|
/* |
|
* f2fs_iget isn't quite right if the inode is currently unallocated! |
|
* However f2fs_iget currently does appropriate checks to handle stale |
|
* inodes so everything is OK. |
|
*/ |
|
inode = f2fs_iget(sb, ino); |
|
if (IS_ERR(inode)) |
|
return ERR_CAST(inode); |
|
if (unlikely(generation && inode->i_generation != generation)) { |
|
/* we didn't find the right inode.. */ |
|
iput(inode); |
|
return ERR_PTR(-ESTALE); |
|
} |
|
return inode; |
|
} |
|
|
|
static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid, |
|
int fh_len, int fh_type) |
|
{ |
|
return generic_fh_to_dentry(sb, fid, fh_len, fh_type, |
|
f2fs_nfs_get_inode); |
|
} |
|
|
|
static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid, |
|
int fh_len, int fh_type) |
|
{ |
|
return generic_fh_to_parent(sb, fid, fh_len, fh_type, |
|
f2fs_nfs_get_inode); |
|
} |
|
|
|
static const struct export_operations f2fs_export_ops = { |
|
.fh_to_dentry = f2fs_fh_to_dentry, |
|
.fh_to_parent = f2fs_fh_to_parent, |
|
.get_parent = f2fs_get_parent, |
|
}; |
|
|
|
loff_t max_file_blocks(struct inode *inode) |
|
{ |
|
loff_t result = 0; |
|
loff_t leaf_count; |
|
|
|
/* |
|
* note: previously, result is equal to (DEF_ADDRS_PER_INODE - |
|
* DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more |
|
* space in inode.i_addr, it will be more safe to reassign |
|
* result as zero. |
|
*/ |
|
|
|
if (inode && f2fs_compressed_file(inode)) |
|
leaf_count = ADDRS_PER_BLOCK(inode); |
|
else |
|
leaf_count = DEF_ADDRS_PER_BLOCK; |
|
|
|
/* two direct node blocks */ |
|
result += (leaf_count * 2); |
|
|
|
/* two indirect node blocks */ |
|
leaf_count *= NIDS_PER_BLOCK; |
|
result += (leaf_count * 2); |
|
|
|
/* one double indirect node block */ |
|
leaf_count *= NIDS_PER_BLOCK; |
|
result += leaf_count; |
|
|
|
return result; |
|
} |
|
|
|
static int __f2fs_commit_super(struct buffer_head *bh, |
|
struct f2fs_super_block *super) |
|
{ |
|
lock_buffer(bh); |
|
if (super) |
|
memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super)); |
|
set_buffer_dirty(bh); |
|
unlock_buffer(bh); |
|
|
|
/* it's rare case, we can do fua all the time */ |
|
return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA); |
|
} |
|
|
|
static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi, |
|
struct buffer_head *bh) |
|
{ |
|
struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
|
(bh->b_data + F2FS_SUPER_OFFSET); |
|
struct super_block *sb = sbi->sb; |
|
u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr); |
|
u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr); |
|
u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr); |
|
u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr); |
|
u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr); |
|
u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr); |
|
u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt); |
|
u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit); |
|
u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat); |
|
u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa); |
|
u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main); |
|
u32 segment_count = le32_to_cpu(raw_super->segment_count); |
|
u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); |
|
u64 main_end_blkaddr = main_blkaddr + |
|
(segment_count_main << log_blocks_per_seg); |
|
u64 seg_end_blkaddr = segment0_blkaddr + |
|
(segment_count << log_blocks_per_seg); |
|
|
|
if (segment0_blkaddr != cp_blkaddr) { |
|
f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)", |
|
segment0_blkaddr, cp_blkaddr); |
|
return true; |
|
} |
|
|
|
if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) != |
|
sit_blkaddr) { |
|
f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)", |
|
cp_blkaddr, sit_blkaddr, |
|
segment_count_ckpt << log_blocks_per_seg); |
|
return true; |
|
} |
|
|
|
if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) != |
|
nat_blkaddr) { |
|
f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)", |
|
sit_blkaddr, nat_blkaddr, |
|
segment_count_sit << log_blocks_per_seg); |
|
return true; |
|
} |
|
|
|
if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) != |
|
ssa_blkaddr) { |
|
f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)", |
|
nat_blkaddr, ssa_blkaddr, |
|
segment_count_nat << log_blocks_per_seg); |
|
return true; |
|
} |
|
|
|
if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) != |
|
main_blkaddr) { |
|
f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)", |
|
ssa_blkaddr, main_blkaddr, |
|
segment_count_ssa << log_blocks_per_seg); |
|
return true; |
|
} |
|
|
|
if (main_end_blkaddr > seg_end_blkaddr) { |
|
f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)", |
|
main_blkaddr, seg_end_blkaddr, |
|
segment_count_main << log_blocks_per_seg); |
|
return true; |
|
} else if (main_end_blkaddr < seg_end_blkaddr) { |
|
int err = 0; |
|
char *res; |
|
|
|
/* fix in-memory information all the time */ |
|
raw_super->segment_count = cpu_to_le32((main_end_blkaddr - |
|
segment0_blkaddr) >> log_blocks_per_seg); |
|
|
|
if (f2fs_readonly(sb) || bdev_read_only(sb->s_bdev)) { |
|
set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
|
res = "internally"; |
|
} else { |
|
err = __f2fs_commit_super(bh, NULL); |
|
res = err ? "failed" : "done"; |
|
} |
|
f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%llu) block(%u)", |
|
res, main_blkaddr, seg_end_blkaddr, |
|
segment_count_main << log_blocks_per_seg); |
|
if (err) |
|
return true; |
|
} |
|
return false; |
|
} |
|
|
|
static int sanity_check_raw_super(struct f2fs_sb_info *sbi, |
|
struct buffer_head *bh) |
|
{ |
|
block_t segment_count, segs_per_sec, secs_per_zone, segment_count_main; |
|
block_t total_sections, blocks_per_seg; |
|
struct f2fs_super_block *raw_super = (struct f2fs_super_block *) |
|
(bh->b_data + F2FS_SUPER_OFFSET); |
|
size_t crc_offset = 0; |
|
__u32 crc = 0; |
|
|
|
if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) { |
|
f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)", |
|
F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic)); |
|
return -EINVAL; |
|
} |
|
|
|
/* Check checksum_offset and crc in superblock */ |
|
if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) { |
|
crc_offset = le32_to_cpu(raw_super->checksum_offset); |
|
if (crc_offset != |
|
offsetof(struct f2fs_super_block, crc)) { |
|
f2fs_info(sbi, "Invalid SB checksum offset: %zu", |
|
crc_offset); |
|
return -EFSCORRUPTED; |
|
} |
|
crc = le32_to_cpu(raw_super->crc); |
|
if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) { |
|
f2fs_info(sbi, "Invalid SB checksum value: %u", crc); |
|
return -EFSCORRUPTED; |
|
} |
|
} |
|
|
|
/* Currently, support only 4KB block size */ |
|
if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) { |
|
f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u", |
|
le32_to_cpu(raw_super->log_blocksize), |
|
F2FS_BLKSIZE_BITS); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
/* check log blocks per segment */ |
|
if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) { |
|
f2fs_info(sbi, "Invalid log blocks per segment (%u)", |
|
le32_to_cpu(raw_super->log_blocks_per_seg)); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
/* Currently, support 512/1024/2048/4096 bytes sector size */ |
|
if (le32_to_cpu(raw_super->log_sectorsize) > |
|
F2FS_MAX_LOG_SECTOR_SIZE || |
|
le32_to_cpu(raw_super->log_sectorsize) < |
|
F2FS_MIN_LOG_SECTOR_SIZE) { |
|
f2fs_info(sbi, "Invalid log sectorsize (%u)", |
|
le32_to_cpu(raw_super->log_sectorsize)); |
|
return -EFSCORRUPTED; |
|
} |
|
if (le32_to_cpu(raw_super->log_sectors_per_block) + |
|
le32_to_cpu(raw_super->log_sectorsize) != |
|
F2FS_MAX_LOG_SECTOR_SIZE) { |
|
f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)", |
|
le32_to_cpu(raw_super->log_sectors_per_block), |
|
le32_to_cpu(raw_super->log_sectorsize)); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
segment_count = le32_to_cpu(raw_super->segment_count); |
|
segment_count_main = le32_to_cpu(raw_super->segment_count_main); |
|
segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); |
|
secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); |
|
total_sections = le32_to_cpu(raw_super->section_count); |
|
|
|
/* blocks_per_seg should be 512, given the above check */ |
|
blocks_per_seg = 1 << le32_to_cpu(raw_super->log_blocks_per_seg); |
|
|
|
if (segment_count > F2FS_MAX_SEGMENT || |
|
segment_count < F2FS_MIN_SEGMENTS) { |
|
f2fs_info(sbi, "Invalid segment count (%u)", segment_count); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
if (total_sections > segment_count_main || total_sections < 1 || |
|
segs_per_sec > segment_count || !segs_per_sec) { |
|
f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)", |
|
segment_count, total_sections, segs_per_sec); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
if (segment_count_main != total_sections * segs_per_sec) { |
|
f2fs_info(sbi, "Invalid segment/section count (%u != %u * %u)", |
|
segment_count_main, total_sections, segs_per_sec); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
if ((segment_count / segs_per_sec) < total_sections) { |
|
f2fs_info(sbi, "Small segment_count (%u < %u * %u)", |
|
segment_count, segs_per_sec, total_sections); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) { |
|
f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)", |
|
segment_count, le64_to_cpu(raw_super->block_count)); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
if (RDEV(0).path[0]) { |
|
block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments); |
|
int i = 1; |
|
|
|
while (i < MAX_DEVICES && RDEV(i).path[0]) { |
|
dev_seg_count += le32_to_cpu(RDEV(i).total_segments); |
|
i++; |
|
} |
|
if (segment_count != dev_seg_count) { |
|
f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)", |
|
segment_count, dev_seg_count); |
|
return -EFSCORRUPTED; |
|
} |
|
} else { |
|
if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) && |
|
!bdev_is_zoned(sbi->sb->s_bdev)) { |
|
f2fs_info(sbi, "Zoned block device path is missing"); |
|
return -EFSCORRUPTED; |
|
} |
|
} |
|
|
|
if (secs_per_zone > total_sections || !secs_per_zone) { |
|
f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)", |
|
secs_per_zone, total_sections); |
|
return -EFSCORRUPTED; |
|
} |
|
if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION || |
|
raw_super->hot_ext_count > F2FS_MAX_EXTENSION || |
|
(le32_to_cpu(raw_super->extension_count) + |
|
raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) { |
|
f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)", |
|
le32_to_cpu(raw_super->extension_count), |
|
raw_super->hot_ext_count, |
|
F2FS_MAX_EXTENSION); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
if (le32_to_cpu(raw_super->cp_payload) > |
|
(blocks_per_seg - F2FS_CP_PACKS)) { |
|
f2fs_info(sbi, "Insane cp_payload (%u > %u)", |
|
le32_to_cpu(raw_super->cp_payload), |
|
blocks_per_seg - F2FS_CP_PACKS); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
/* check reserved ino info */ |
|
if (le32_to_cpu(raw_super->node_ino) != 1 || |
|
le32_to_cpu(raw_super->meta_ino) != 2 || |
|
le32_to_cpu(raw_super->root_ino) != 3) { |
|
f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)", |
|
le32_to_cpu(raw_super->node_ino), |
|
le32_to_cpu(raw_super->meta_ino), |
|
le32_to_cpu(raw_super->root_ino)); |
|
return -EFSCORRUPTED; |
|
} |
|
|
|
/* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */ |
|
if (sanity_check_area_boundary(sbi, bh)) |
|
return -EFSCORRUPTED; |
|
|
|
return 0; |
|
} |
|
|
|
int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi) |
|
{ |
|
unsigned int total, fsmeta; |
|
struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
|
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi); |
|
unsigned int ovp_segments, reserved_segments; |
|
unsigned int main_segs, blocks_per_seg; |
|
unsigned int sit_segs, nat_segs; |
|
unsigned int sit_bitmap_size, nat_bitmap_size; |
|
unsigned int log_blocks_per_seg; |
|
unsigned int segment_count_main; |
|
unsigned int cp_pack_start_sum, cp_payload; |
|
block_t user_block_count, valid_user_blocks; |
|
block_t avail_node_count, valid_node_count; |
|
int i, j; |
|
|
|
total = le32_to_cpu(raw_super->segment_count); |
|
fsmeta = le32_to_cpu(raw_super->segment_count_ckpt); |
|
sit_segs = le32_to_cpu(raw_super->segment_count_sit); |
|
fsmeta += sit_segs; |
|
nat_segs = le32_to_cpu(raw_super->segment_count_nat); |
|
fsmeta += nat_segs; |
|
fsmeta += le32_to_cpu(ckpt->rsvd_segment_count); |
|
fsmeta += le32_to_cpu(raw_super->segment_count_ssa); |
|
|
|
if (unlikely(fsmeta >= total)) |
|
return 1; |
|
|
|
ovp_segments = le32_to_cpu(ckpt->overprov_segment_count); |
|
reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count); |
|
|
|
if (!f2fs_sb_has_readonly(sbi) && |
|
unlikely(fsmeta < F2FS_MIN_META_SEGMENTS || |
|
ovp_segments == 0 || reserved_segments == 0)) { |
|
f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version"); |
|
return 1; |
|
} |
|
user_block_count = le64_to_cpu(ckpt->user_block_count); |
|
segment_count_main = le32_to_cpu(raw_super->segment_count_main) + |
|
(f2fs_sb_has_readonly(sbi) ? 1 : 0); |
|
log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); |
|
if (!user_block_count || user_block_count >= |
|
segment_count_main << log_blocks_per_seg) { |
|
f2fs_err(sbi, "Wrong user_block_count: %u", |
|
user_block_count); |
|
return 1; |
|
} |
|
|
|
valid_user_blocks = le64_to_cpu(ckpt->valid_block_count); |
|
if (valid_user_blocks > user_block_count) { |
|
f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u", |
|
valid_user_blocks, user_block_count); |
|
return 1; |
|
} |
|
|
|
valid_node_count = le32_to_cpu(ckpt->valid_node_count); |
|
avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM; |
|
if (valid_node_count > avail_node_count) { |
|
f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u", |
|
valid_node_count, avail_node_count); |
|
return 1; |
|
} |
|
|
|
main_segs = le32_to_cpu(raw_super->segment_count_main); |
|
blocks_per_seg = sbi->blocks_per_seg; |
|
|
|
for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
|
if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs || |
|
le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg) |
|
return 1; |
|
|
|
if (f2fs_sb_has_readonly(sbi)) |
|
goto check_data; |
|
|
|
for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) { |
|
if (le32_to_cpu(ckpt->cur_node_segno[i]) == |
|
le32_to_cpu(ckpt->cur_node_segno[j])) { |
|
f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u", |
|
i, j, |
|
le32_to_cpu(ckpt->cur_node_segno[i])); |
|
return 1; |
|
} |
|
} |
|
} |
|
check_data: |
|
for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) { |
|
if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs || |
|
le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg) |
|
return 1; |
|
|
|
if (f2fs_sb_has_readonly(sbi)) |
|
goto skip_cross; |
|
|
|
for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) { |
|
if (le32_to_cpu(ckpt->cur_data_segno[i]) == |
|
le32_to_cpu(ckpt->cur_data_segno[j])) { |
|
f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u", |
|
i, j, |
|
le32_to_cpu(ckpt->cur_data_segno[i])); |
|
return 1; |
|
} |
|
} |
|
} |
|
for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) { |
|
for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) { |
|
if (le32_to_cpu(ckpt->cur_node_segno[i]) == |
|
le32_to_cpu(ckpt->cur_data_segno[j])) { |
|
f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u", |
|
i, j, |
|
le32_to_cpu(ckpt->cur_node_segno[i])); |
|
return 1; |
|
} |
|
} |
|
} |
|
skip_cross: |
|
sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize); |
|
nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize); |
|
|
|
if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 || |
|
nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) { |
|
f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u", |
|
sit_bitmap_size, nat_bitmap_size); |
|
return 1; |
|
} |
|
|
|
cp_pack_start_sum = __start_sum_addr(sbi); |
|
cp_payload = __cp_payload(sbi); |
|
if (cp_pack_start_sum < cp_payload + 1 || |
|
cp_pack_start_sum > blocks_per_seg - 1 - |
|
NR_CURSEG_PERSIST_TYPE) { |
|
f2fs_err(sbi, "Wrong cp_pack_start_sum: %u", |
|
cp_pack_start_sum); |
|
return 1; |
|
} |
|
|
|
if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) && |
|
le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) { |
|
f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, " |
|
"please run fsck v1.13.0 or higher to repair, chksum_offset: %u, " |
|
"fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"", |
|
le32_to_cpu(ckpt->checksum_offset)); |
|
return 1; |
|
} |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) { |
|
f2fs_err(sbi, "A bug case: need to run fsck"); |
|
return 1; |
|
} |
|
return 0; |
|
} |
|
|
|
static void init_sb_info(struct f2fs_sb_info *sbi) |
|
{ |
|
struct f2fs_super_block *raw_super = sbi->raw_super; |
|
int i; |
|
|
|
sbi->log_sectors_per_block = |
|
le32_to_cpu(raw_super->log_sectors_per_block); |
|
sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize); |
|
sbi->blocksize = 1 << sbi->log_blocksize; |
|
sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg); |
|
sbi->blocks_per_seg = 1 << sbi->log_blocks_per_seg; |
|
sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec); |
|
sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone); |
|
sbi->total_sections = le32_to_cpu(raw_super->section_count); |
|
sbi->total_node_count = |
|
(le32_to_cpu(raw_super->segment_count_nat) / 2) |
|
* sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK; |
|
F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino); |
|
F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino); |
|
F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino); |
|
sbi->cur_victim_sec = NULL_SECNO; |
|
sbi->next_victim_seg[BG_GC] = NULL_SEGNO; |
|
sbi->next_victim_seg[FG_GC] = NULL_SEGNO; |
|
sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH; |
|
sbi->migration_granularity = sbi->segs_per_sec; |
|
|
|
sbi->dir_level = DEF_DIR_LEVEL; |
|
sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL; |
|
sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL; |
|
sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL; |
|
sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL; |
|
sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL; |
|
sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] = |
|
DEF_UMOUNT_DISCARD_TIMEOUT; |
|
clear_sbi_flag(sbi, SBI_NEED_FSCK); |
|
|
|
for (i = 0; i < NR_COUNT_TYPE; i++) |
|
atomic_set(&sbi->nr_pages[i], 0); |
|
|
|
for (i = 0; i < META; i++) |
|
atomic_set(&sbi->wb_sync_req[i], 0); |
|
|
|
INIT_LIST_HEAD(&sbi->s_list); |
|
mutex_init(&sbi->umount_mutex); |
|
init_rwsem(&sbi->io_order_lock); |
|
spin_lock_init(&sbi->cp_lock); |
|
|
|
sbi->dirty_device = 0; |
|
spin_lock_init(&sbi->dev_lock); |
|
|
|
init_rwsem(&sbi->sb_lock); |
|
init_rwsem(&sbi->pin_sem); |
|
} |
|
|
|
static int init_percpu_info(struct f2fs_sb_info *sbi) |
|
{ |
|
int err; |
|
|
|
err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL); |
|
if (err) |
|
return err; |
|
|
|
err = percpu_counter_init(&sbi->total_valid_inode_count, 0, |
|
GFP_KERNEL); |
|
if (err) |
|
percpu_counter_destroy(&sbi->alloc_valid_block_count); |
|
|
|
return err; |
|
} |
|
|
|
#ifdef CONFIG_BLK_DEV_ZONED |
|
|
|
struct f2fs_report_zones_args { |
|
struct f2fs_dev_info *dev; |
|
bool zone_cap_mismatch; |
|
}; |
|
|
|
static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx, |
|
void *data) |
|
{ |
|
struct f2fs_report_zones_args *rz_args = data; |
|
|
|
if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL) |
|
return 0; |
|
|
|
set_bit(idx, rz_args->dev->blkz_seq); |
|
rz_args->dev->zone_capacity_blocks[idx] = zone->capacity >> |
|
F2FS_LOG_SECTORS_PER_BLOCK; |
|
if (zone->len != zone->capacity && !rz_args->zone_cap_mismatch) |
|
rz_args->zone_cap_mismatch = true; |
|
|
|
return 0; |
|
} |
|
|
|
static int init_blkz_info(struct f2fs_sb_info *sbi, int devi) |
|
{ |
|
struct block_device *bdev = FDEV(devi).bdev; |
|
sector_t nr_sectors = bdev_nr_sectors(bdev); |
|
struct f2fs_report_zones_args rep_zone_arg; |
|
int ret; |
|
|
|
if (!f2fs_sb_has_blkzoned(sbi)) |
|
return 0; |
|
|
|
if (sbi->blocks_per_blkz && sbi->blocks_per_blkz != |
|
SECTOR_TO_BLOCK(bdev_zone_sectors(bdev))) |
|
return -EINVAL; |
|
sbi->blocks_per_blkz = SECTOR_TO_BLOCK(bdev_zone_sectors(bdev)); |
|
if (sbi->log_blocks_per_blkz && sbi->log_blocks_per_blkz != |
|
__ilog2_u32(sbi->blocks_per_blkz)) |
|
return -EINVAL; |
|
sbi->log_blocks_per_blkz = __ilog2_u32(sbi->blocks_per_blkz); |
|
FDEV(devi).nr_blkz = SECTOR_TO_BLOCK(nr_sectors) >> |
|
sbi->log_blocks_per_blkz; |
|
if (nr_sectors & (bdev_zone_sectors(bdev) - 1)) |
|
FDEV(devi).nr_blkz++; |
|
|
|
FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi, |
|
BITS_TO_LONGS(FDEV(devi).nr_blkz) |
|
* sizeof(unsigned long), |
|
GFP_KERNEL); |
|
if (!FDEV(devi).blkz_seq) |
|
return -ENOMEM; |
|
|
|
/* Get block zones type and zone-capacity */ |
|
FDEV(devi).zone_capacity_blocks = f2fs_kzalloc(sbi, |
|
FDEV(devi).nr_blkz * sizeof(block_t), |
|
GFP_KERNEL); |
|
if (!FDEV(devi).zone_capacity_blocks) |
|
return -ENOMEM; |
|
|
|
rep_zone_arg.dev = &FDEV(devi); |
|
rep_zone_arg.zone_cap_mismatch = false; |
|
|
|
ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb, |
|
&rep_zone_arg); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (!rep_zone_arg.zone_cap_mismatch) { |
|
kfree(FDEV(devi).zone_capacity_blocks); |
|
FDEV(devi).zone_capacity_blocks = NULL; |
|
} |
|
|
|
return 0; |
|
} |
|
#endif |
|
|
|
/* |
|
* Read f2fs raw super block. |
|
* Because we have two copies of super block, so read both of them |
|
* to get the first valid one. If any one of them is broken, we pass |
|
* them recovery flag back to the caller. |
|
*/ |
|
static int read_raw_super_block(struct f2fs_sb_info *sbi, |
|
struct f2fs_super_block **raw_super, |
|
int *valid_super_block, int *recovery) |
|
{ |
|
struct super_block *sb = sbi->sb; |
|
int block; |
|
struct buffer_head *bh; |
|
struct f2fs_super_block *super; |
|
int err = 0; |
|
|
|
super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL); |
|
if (!super) |
|
return -ENOMEM; |
|
|
|
for (block = 0; block < 2; block++) { |
|
bh = sb_bread(sb, block); |
|
if (!bh) { |
|
f2fs_err(sbi, "Unable to read %dth superblock", |
|
block + 1); |
|
err = -EIO; |
|
*recovery = 1; |
|
continue; |
|
} |
|
|
|
/* sanity checking of raw super */ |
|
err = sanity_check_raw_super(sbi, bh); |
|
if (err) { |
|
f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock", |
|
block + 1); |
|
brelse(bh); |
|
*recovery = 1; |
|
continue; |
|
} |
|
|
|
if (!*raw_super) { |
|
memcpy(super, bh->b_data + F2FS_SUPER_OFFSET, |
|
sizeof(*super)); |
|
*valid_super_block = block; |
|
*raw_super = super; |
|
} |
|
brelse(bh); |
|
} |
|
|
|
/* No valid superblock */ |
|
if (!*raw_super) |
|
kfree(super); |
|
else |
|
err = 0; |
|
|
|
return err; |
|
} |
|
|
|
int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover) |
|
{ |
|
struct buffer_head *bh; |
|
__u32 crc = 0; |
|
int err; |
|
|
|
if ((recover && f2fs_readonly(sbi->sb)) || |
|
bdev_read_only(sbi->sb->s_bdev)) { |
|
set_sbi_flag(sbi, SBI_NEED_SB_WRITE); |
|
return -EROFS; |
|
} |
|
|
|
/* we should update superblock crc here */ |
|
if (!recover && f2fs_sb_has_sb_chksum(sbi)) { |
|
crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi), |
|
offsetof(struct f2fs_super_block, crc)); |
|
F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc); |
|
} |
|
|
|
/* write back-up superblock first */ |
|
bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1); |
|
if (!bh) |
|
return -EIO; |
|
err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
|
brelse(bh); |
|
|
|
/* if we are in recovery path, skip writing valid superblock */ |
|
if (recover || err) |
|
return err; |
|
|
|
/* write current valid superblock */ |
|
bh = sb_bread(sbi->sb, sbi->valid_super_block); |
|
if (!bh) |
|
return -EIO; |
|
err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi)); |
|
brelse(bh); |
|
return err; |
|
} |
|
|
|
static int f2fs_scan_devices(struct f2fs_sb_info *sbi) |
|
{ |
|
struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
|
unsigned int max_devices = MAX_DEVICES; |
|
int i; |
|
|
|
/* Initialize single device information */ |
|
if (!RDEV(0).path[0]) { |
|
if (!bdev_is_zoned(sbi->sb->s_bdev)) |
|
return 0; |
|
max_devices = 1; |
|
} |
|
|
|
/* |
|
* Initialize multiple devices information, or single |
|
* zoned block device information. |
|
*/ |
|
sbi->devs = f2fs_kzalloc(sbi, |
|
array_size(max_devices, |
|
sizeof(struct f2fs_dev_info)), |
|
GFP_KERNEL); |
|
if (!sbi->devs) |
|
return -ENOMEM; |
|
|
|
for (i = 0; i < max_devices; i++) { |
|
|
|
if (i > 0 && !RDEV(i).path[0]) |
|
break; |
|
|
|
if (max_devices == 1) { |
|
/* Single zoned block device mount */ |
|
FDEV(0).bdev = |
|
blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev, |
|
sbi->sb->s_mode, sbi->sb->s_type); |
|
} else { |
|
/* Multi-device mount */ |
|
memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN); |
|
FDEV(i).total_segments = |
|
le32_to_cpu(RDEV(i).total_segments); |
|
if (i == 0) { |
|
FDEV(i).start_blk = 0; |
|
FDEV(i).end_blk = FDEV(i).start_blk + |
|
(FDEV(i).total_segments << |
|
sbi->log_blocks_per_seg) - 1 + |
|
le32_to_cpu(raw_super->segment0_blkaddr); |
|
} else { |
|
FDEV(i).start_blk = FDEV(i - 1).end_blk + 1; |
|
FDEV(i).end_blk = FDEV(i).start_blk + |
|
(FDEV(i).total_segments << |
|
sbi->log_blocks_per_seg) - 1; |
|
} |
|
FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path, |
|
sbi->sb->s_mode, sbi->sb->s_type); |
|
} |
|
if (IS_ERR(FDEV(i).bdev)) |
|
return PTR_ERR(FDEV(i).bdev); |
|
|
|
/* to release errored devices */ |
|
sbi->s_ndevs = i + 1; |
|
|
|
#ifdef CONFIG_BLK_DEV_ZONED |
|
if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM && |
|
!f2fs_sb_has_blkzoned(sbi)) { |
|
f2fs_err(sbi, "Zoned block device feature not enabled"); |
|
return -EINVAL; |
|
} |
|
if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) { |
|
if (init_blkz_info(sbi, i)) { |
|
f2fs_err(sbi, "Failed to initialize F2FS blkzone information"); |
|
return -EINVAL; |
|
} |
|
if (max_devices == 1) |
|
break; |
|
f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)", |
|
i, FDEV(i).path, |
|
FDEV(i).total_segments, |
|
FDEV(i).start_blk, FDEV(i).end_blk, |
|
bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ? |
|
"Host-aware" : "Host-managed"); |
|
continue; |
|
} |
|
#endif |
|
f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x", |
|
i, FDEV(i).path, |
|
FDEV(i).total_segments, |
|
FDEV(i).start_blk, FDEV(i).end_blk); |
|
} |
|
f2fs_info(sbi, |
|
"IO Block Size: %8d KB", F2FS_IO_SIZE_KB(sbi)); |
|
return 0; |
|
} |
|
|
|
static int f2fs_setup_casefold(struct f2fs_sb_info *sbi) |
|
{ |
|
#ifdef CONFIG_UNICODE |
|
if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) { |
|
const struct f2fs_sb_encodings *encoding_info; |
|
struct unicode_map *encoding; |
|
__u16 encoding_flags; |
|
|
|
if (f2fs_sb_read_encoding(sbi->raw_super, &encoding_info, |
|
&encoding_flags)) { |
|
f2fs_err(sbi, |
|
"Encoding requested by superblock is unknown"); |
|
return -EINVAL; |
|
} |
|
|
|
encoding = utf8_load(encoding_info->version); |
|
if (IS_ERR(encoding)) { |
|
f2fs_err(sbi, |
|
"can't mount with superblock charset: %s-%s " |
|
"not supported by the kernel. flags: 0x%x.", |
|
encoding_info->name, encoding_info->version, |
|
encoding_flags); |
|
return PTR_ERR(encoding); |
|
} |
|
f2fs_info(sbi, "Using encoding defined by superblock: " |
|
"%s-%s with flags 0x%hx", encoding_info->name, |
|
encoding_info->version?:"\b", encoding_flags); |
|
|
|
sbi->sb->s_encoding = encoding; |
|
sbi->sb->s_encoding_flags = encoding_flags; |
|
} |
|
#else |
|
if (f2fs_sb_has_casefold(sbi)) { |
|
f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE"); |
|
return -EINVAL; |
|
} |
|
#endif |
|
return 0; |
|
} |
|
|
|
static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi) |
|
{ |
|
struct f2fs_sm_info *sm_i = SM_I(sbi); |
|
|
|
/* adjust parameters according to the volume size */ |
|
if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) { |
|
F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE; |
|
sm_i->dcc_info->discard_granularity = 1; |
|
sm_i->ipu_policy = 1 << F2FS_IPU_FORCE; |
|
} |
|
|
|
sbi->readdir_ra = 1; |
|
} |
|
|
|
static int f2fs_fill_super(struct super_block *sb, void *data, int silent) |
|
{ |
|
struct f2fs_sb_info *sbi; |
|
struct f2fs_super_block *raw_super; |
|
struct inode *root; |
|
int err; |
|
bool skip_recovery = false, need_fsck = false; |
|
char *options = NULL; |
|
int recovery, i, valid_super_block; |
|
struct curseg_info *seg_i; |
|
int retry_cnt = 1; |
|
|
|
try_onemore: |
|
err = -EINVAL; |
|
raw_super = NULL; |
|
valid_super_block = -1; |
|
recovery = 0; |
|
|
|
/* allocate memory for f2fs-specific super block info */ |
|
sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL); |
|
if (!sbi) |
|
return -ENOMEM; |
|
|
|
sbi->sb = sb; |
|
|
|
/* Load the checksum driver */ |
|
sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0); |
|
if (IS_ERR(sbi->s_chksum_driver)) { |
|
f2fs_err(sbi, "Cannot load crc32 driver."); |
|
err = PTR_ERR(sbi->s_chksum_driver); |
|
sbi->s_chksum_driver = NULL; |
|
goto free_sbi; |
|
} |
|
|
|
/* set a block size */ |
|
if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) { |
|
f2fs_err(sbi, "unable to set blocksize"); |
|
goto free_sbi; |
|
} |
|
|
|
err = read_raw_super_block(sbi, &raw_super, &valid_super_block, |
|
&recovery); |
|
if (err) |
|
goto free_sbi; |
|
|
|
sb->s_fs_info = sbi; |
|
sbi->raw_super = raw_super; |
|
|
|
/* precompute checksum seed for metadata */ |
|
if (f2fs_sb_has_inode_chksum(sbi)) |
|
sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid, |
|
sizeof(raw_super->uuid)); |
|
|
|
default_options(sbi); |
|
/* parse mount options */ |
|
options = kstrdup((const char *)data, GFP_KERNEL); |
|
if (data && !options) { |
|
err = -ENOMEM; |
|
goto free_sb_buf; |
|
} |
|
|
|
err = parse_options(sb, options, false); |
|
if (err) |
|
goto free_options; |
|
|
|
sb->s_maxbytes = max_file_blocks(NULL) << |
|
le32_to_cpu(raw_super->log_blocksize); |
|
sb->s_max_links = F2FS_LINK_MAX; |
|
|
|
err = f2fs_setup_casefold(sbi); |
|
if (err) |
|
goto free_options; |
|
|
|
#ifdef CONFIG_QUOTA |
|
sb->dq_op = &f2fs_quota_operations; |
|
sb->s_qcop = &f2fs_quotactl_ops; |
|
sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ; |
|
|
|
if (f2fs_sb_has_quota_ino(sbi)) { |
|
for (i = 0; i < MAXQUOTAS; i++) { |
|
if (f2fs_qf_ino(sbi->sb, i)) |
|
sbi->nquota_files++; |
|
} |
|
} |
|
#endif |
|
|
|
sb->s_op = &f2fs_sops; |
|
#ifdef CONFIG_FS_ENCRYPTION |
|
sb->s_cop = &f2fs_cryptops; |
|
#endif |
|
#ifdef CONFIG_FS_VERITY |
|
sb->s_vop = &f2fs_verityops; |
|
#endif |
|
sb->s_xattr = f2fs_xattr_handlers; |
|
sb->s_export_op = &f2fs_export_ops; |
|
sb->s_magic = F2FS_SUPER_MAGIC; |
|
sb->s_time_gran = 1; |
|
sb->s_flags = (sb->s_flags & ~SB_POSIXACL) | |
|
(test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0); |
|
memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid)); |
|
sb->s_iflags |= SB_I_CGROUPWB; |
|
|
|
/* init f2fs-specific super block info */ |
|
sbi->valid_super_block = valid_super_block; |
|
init_rwsem(&sbi->gc_lock); |
|
mutex_init(&sbi->writepages); |
|
init_rwsem(&sbi->cp_global_sem); |
|
init_rwsem(&sbi->node_write); |
|
init_rwsem(&sbi->node_change); |
|
|
|
/* disallow all the data/node/meta page writes */ |
|
set_sbi_flag(sbi, SBI_POR_DOING); |
|
spin_lock_init(&sbi->stat_lock); |
|
|
|
/* init iostat info */ |
|
spin_lock_init(&sbi->iostat_lock); |
|
sbi->iostat_enable = false; |
|
sbi->iostat_period_ms = DEFAULT_IOSTAT_PERIOD_MS; |
|
|
|
for (i = 0; i < NR_PAGE_TYPE; i++) { |
|
int n = (i == META) ? 1 : NR_TEMP_TYPE; |
|
int j; |
|
|
|
sbi->write_io[i] = |
|
f2fs_kmalloc(sbi, |
|
array_size(n, |
|
sizeof(struct f2fs_bio_info)), |
|
GFP_KERNEL); |
|
if (!sbi->write_io[i]) { |
|
err = -ENOMEM; |
|
goto free_bio_info; |
|
} |
|
|
|
for (j = HOT; j < n; j++) { |
|
init_rwsem(&sbi->write_io[i][j].io_rwsem); |
|
sbi->write_io[i][j].sbi = sbi; |
|
sbi->write_io[i][j].bio = NULL; |
|
spin_lock_init(&sbi->write_io[i][j].io_lock); |
|
INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); |
|
INIT_LIST_HEAD(&sbi->write_io[i][j].bio_list); |
|
init_rwsem(&sbi->write_io[i][j].bio_list_lock); |
|
} |
|
} |
|
|
|
init_rwsem(&sbi->cp_rwsem); |
|
init_rwsem(&sbi->quota_sem); |
|
init_waitqueue_head(&sbi->cp_wait); |
|
init_sb_info(sbi); |
|
|
|
err = init_percpu_info(sbi); |
|
if (err) |
|
goto free_bio_info; |
|
|
|
if (F2FS_IO_ALIGNED(sbi)) { |
|
sbi->write_io_dummy = |
|
mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0); |
|
if (!sbi->write_io_dummy) { |
|
err = -ENOMEM; |
|
goto free_percpu; |
|
} |
|
} |
|
|
|
/* init per sbi slab cache */ |
|
err = f2fs_init_xattr_caches(sbi); |
|
if (err) |
|
goto free_io_dummy; |
|
err = f2fs_init_page_array_cache(sbi); |
|
if (err) |
|
goto free_xattr_cache; |
|
|
|
/* get an inode for meta space */ |
|
sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi)); |
|
if (IS_ERR(sbi->meta_inode)) { |
|
f2fs_err(sbi, "Failed to read F2FS meta data inode"); |
|
err = PTR_ERR(sbi->meta_inode); |
|
goto free_page_array_cache; |
|
} |
|
|
|
err = f2fs_get_valid_checkpoint(sbi); |
|
if (err) { |
|
f2fs_err(sbi, "Failed to get valid F2FS checkpoint"); |
|
goto free_meta_inode; |
|
} |
|
|
|
if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG)) |
|
set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR); |
|
if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) { |
|
set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); |
|
sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL; |
|
} |
|
|
|
if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG)) |
|
set_sbi_flag(sbi, SBI_NEED_FSCK); |
|
|
|
/* Initialize device list */ |
|
err = f2fs_scan_devices(sbi); |
|
if (err) { |
|
f2fs_err(sbi, "Failed to find devices"); |
|
goto free_devices; |
|
} |
|
|
|
err = f2fs_init_post_read_wq(sbi); |
|
if (err) { |
|
f2fs_err(sbi, "Failed to initialize post read workqueue"); |
|
goto free_devices; |
|
} |
|
|
|
sbi->total_valid_node_count = |
|
le32_to_cpu(sbi->ckpt->valid_node_count); |
|
percpu_counter_set(&sbi->total_valid_inode_count, |
|
le32_to_cpu(sbi->ckpt->valid_inode_count)); |
|
sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count); |
|
sbi->total_valid_block_count = |
|
le64_to_cpu(sbi->ckpt->valid_block_count); |
|
sbi->last_valid_block_count = sbi->total_valid_block_count; |
|
sbi->reserved_blocks = 0; |
|
sbi->current_reserved_blocks = 0; |
|
limit_reserve_root(sbi); |
|
adjust_unusable_cap_perc(sbi); |
|
|
|
for (i = 0; i < NR_INODE_TYPE; i++) { |
|
INIT_LIST_HEAD(&sbi->inode_list[i]); |
|
spin_lock_init(&sbi->inode_lock[i]); |
|
} |
|
mutex_init(&sbi->flush_lock); |
|
|
|
f2fs_init_extent_cache_info(sbi); |
|
|
|
f2fs_init_ino_entry_info(sbi); |
|
|
|
f2fs_init_fsync_node_info(sbi); |
|
|
|
/* setup checkpoint request control and start checkpoint issue thread */ |
|
f2fs_init_ckpt_req_control(sbi); |
|
if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) && |
|
test_opt(sbi, MERGE_CHECKPOINT)) { |
|
err = f2fs_start_ckpt_thread(sbi); |
|
if (err) { |
|
f2fs_err(sbi, |
|
"Failed to start F2FS issue_checkpoint_thread (%d)", |
|
err); |
|
goto stop_ckpt_thread; |
|
} |
|
} |
|
|
|
/* setup f2fs internal modules */ |
|
err = f2fs_build_segment_manager(sbi); |
|
if (err) { |
|
f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)", |
|
err); |
|
goto free_sm; |
|
} |
|
err = f2fs_build_node_manager(sbi); |
|
if (err) { |
|
f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)", |
|
err); |
|
goto free_nm; |
|
} |
|
|
|
/* For write statistics */ |
|
sbi->sectors_written_start = f2fs_get_sectors_written(sbi); |
|
|
|
/* Read accumulated write IO statistics if exists */ |
|
seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); |
|
if (__exist_node_summaries(sbi)) |
|
sbi->kbytes_written = |
|
le64_to_cpu(seg_i->journal->info.kbytes_written); |
|
|
|
f2fs_build_gc_manager(sbi); |
|
|
|
err = f2fs_build_stats(sbi); |
|
if (err) |
|
goto free_nm; |
|
|
|
/* get an inode for node space */ |
|
sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi)); |
|
if (IS_ERR(sbi->node_inode)) { |
|
f2fs_err(sbi, "Failed to read node inode"); |
|
err = PTR_ERR(sbi->node_inode); |
|
goto free_stats; |
|
} |
|
|
|
/* read root inode and dentry */ |
|
root = f2fs_iget(sb, F2FS_ROOT_INO(sbi)); |
|
if (IS_ERR(root)) { |
|
f2fs_err(sbi, "Failed to read root inode"); |
|
err = PTR_ERR(root); |
|
goto free_node_inode; |
|
} |
|
if (!S_ISDIR(root->i_mode) || !root->i_blocks || |
|
!root->i_size || !root->i_nlink) { |
|
iput(root); |
|
err = -EINVAL; |
|
goto free_node_inode; |
|
} |
|
|
|
sb->s_root = d_make_root(root); /* allocate root dentry */ |
|
if (!sb->s_root) { |
|
err = -ENOMEM; |
|
goto free_node_inode; |
|
} |
|
|
|
err = f2fs_init_compress_inode(sbi); |
|
if (err) |
|
goto free_root_inode; |
|
|
|
err = f2fs_register_sysfs(sbi); |
|
if (err) |
|
goto free_compress_inode; |
|
|
|
#ifdef CONFIG_QUOTA |
|
/* Enable quota usage during mount */ |
|
if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) { |
|
err = f2fs_enable_quotas(sb); |
|
if (err) |
|
f2fs_err(sbi, "Cannot turn on quotas: error %d", err); |
|
} |
|
#endif |
|
/* if there are any orphan inodes, free them */ |
|
err = f2fs_recover_orphan_inodes(sbi); |
|
if (err) |
|
goto free_meta; |
|
|
|
if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG))) |
|
goto reset_checkpoint; |
|
|
|
/* recover fsynced data */ |
|
if (!test_opt(sbi, DISABLE_ROLL_FORWARD) && |
|
!test_opt(sbi, NORECOVERY)) { |
|
/* |
|
* mount should be failed, when device has readonly mode, and |
|
* previous checkpoint was not done by clean system shutdown. |
|
*/ |
|
if (f2fs_hw_is_readonly(sbi)) { |
|
if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
|
err = f2fs_recover_fsync_data(sbi, true); |
|
if (err > 0) { |
|
err = -EROFS; |
|
f2fs_err(sbi, "Need to recover fsync data, but " |
|
"write access unavailable, please try " |
|
"mount w/ disable_roll_forward or norecovery"); |
|
} |
|
if (err < 0) |
|
goto free_meta; |
|
} |
|
f2fs_info(sbi, "write access unavailable, skipping recovery"); |
|
goto reset_checkpoint; |
|
} |
|
|
|
if (need_fsck) |
|
set_sbi_flag(sbi, SBI_NEED_FSCK); |
|
|
|
if (skip_recovery) |
|
goto reset_checkpoint; |
|
|
|
err = f2fs_recover_fsync_data(sbi, false); |
|
if (err < 0) { |
|
if (err != -ENOMEM) |
|
skip_recovery = true; |
|
need_fsck = true; |
|
f2fs_err(sbi, "Cannot recover all fsync data errno=%d", |
|
err); |
|
goto free_meta; |
|
} |
|
} else { |
|
err = f2fs_recover_fsync_data(sbi, true); |
|
|
|
if (!f2fs_readonly(sb) && err > 0) { |
|
err = -EINVAL; |
|
f2fs_err(sbi, "Need to recover fsync data"); |
|
goto free_meta; |
|
} |
|
} |
|
|
|
/* |
|
* If the f2fs is not readonly and fsync data recovery succeeds, |
|
* check zoned block devices' write pointer consistency. |
|
*/ |
|
if (!err && !f2fs_readonly(sb) && f2fs_sb_has_blkzoned(sbi)) { |
|
err = f2fs_check_write_pointer(sbi); |
|
if (err) |
|
goto free_meta; |
|
} |
|
|
|
reset_checkpoint: |
|
f2fs_init_inmem_curseg(sbi); |
|
|
|
/* f2fs_recover_fsync_data() cleared this already */ |
|
clear_sbi_flag(sbi, SBI_POR_DOING); |
|
|
|
if (test_opt(sbi, DISABLE_CHECKPOINT)) { |
|
err = f2fs_disable_checkpoint(sbi); |
|
if (err) |
|
goto sync_free_meta; |
|
} else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) { |
|
f2fs_enable_checkpoint(sbi); |
|
} |
|
|
|
/* |
|
* If filesystem is not mounted as read-only then |
|
* do start the gc_thread. |
|
*/ |
|
if ((F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF || |
|
test_opt(sbi, GC_MERGE)) && !f2fs_readonly(sb)) { |
|
/* After POR, we can run background GC thread.*/ |
|
err = f2fs_start_gc_thread(sbi); |
|
if (err) |
|
goto sync_free_meta; |
|
} |
|
kvfree(options); |
|
|
|
/* recover broken superblock */ |
|
if (recovery) { |
|
err = f2fs_commit_super(sbi, true); |
|
f2fs_info(sbi, "Try to recover %dth superblock, ret: %d", |
|
sbi->valid_super_block ? 1 : 2, err); |
|
} |
|
|
|
f2fs_join_shrinker(sbi); |
|
|
|
f2fs_tuning_parameters(sbi); |
|
|
|
f2fs_notice(sbi, "Mounted with checkpoint version = %llx", |
|
cur_cp_version(F2FS_CKPT(sbi))); |
|
f2fs_update_time(sbi, CP_TIME); |
|
f2fs_update_time(sbi, REQ_TIME); |
|
clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK); |
|
return 0; |
|
|
|
sync_free_meta: |
|
/* safe to flush all the data */ |
|
sync_filesystem(sbi->sb); |
|
retry_cnt = 0; |
|
|
|
free_meta: |
|
#ifdef CONFIG_QUOTA |
|
f2fs_truncate_quota_inode_pages(sb); |
|
if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) |
|
f2fs_quota_off_umount(sbi->sb); |
|
#endif |
|
/* |
|
* Some dirty meta pages can be produced by f2fs_recover_orphan_inodes() |
|
* failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg() |
|
* followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which |
|
* falls into an infinite loop in f2fs_sync_meta_pages(). |
|
*/ |
|
truncate_inode_pages_final(META_MAPPING(sbi)); |
|
/* evict some inodes being cached by GC */ |
|
evict_inodes(sb); |
|
f2fs_unregister_sysfs(sbi); |
|
free_compress_inode: |
|
f2fs_destroy_compress_inode(sbi); |
|
free_root_inode: |
|
dput(sb->s_root); |
|
sb->s_root = NULL; |
|
free_node_inode: |
|
f2fs_release_ino_entry(sbi, true); |
|
truncate_inode_pages_final(NODE_MAPPING(sbi)); |
|
iput(sbi->node_inode); |
|
sbi->node_inode = NULL; |
|
free_stats: |
|
f2fs_destroy_stats(sbi); |
|
free_nm: |
|
f2fs_destroy_node_manager(sbi); |
|
free_sm: |
|
f2fs_destroy_segment_manager(sbi); |
|
f2fs_destroy_post_read_wq(sbi); |
|
stop_ckpt_thread: |
|
f2fs_stop_ckpt_thread(sbi); |
|
free_devices: |
|
destroy_device_list(sbi); |
|
kvfree(sbi->ckpt); |
|
free_meta_inode: |
|
make_bad_inode(sbi->meta_inode); |
|
iput(sbi->meta_inode); |
|
sbi->meta_inode = NULL; |
|
free_page_array_cache: |
|
f2fs_destroy_page_array_cache(sbi); |
|
free_xattr_cache: |
|
f2fs_destroy_xattr_caches(sbi); |
|
free_io_dummy: |
|
mempool_destroy(sbi->write_io_dummy); |
|
free_percpu: |
|
destroy_percpu_info(sbi); |
|
free_bio_info: |
|
for (i = 0; i < NR_PAGE_TYPE; i++) |
|
kvfree(sbi->write_io[i]); |
|
|
|
#ifdef CONFIG_UNICODE |
|
utf8_unload(sb->s_encoding); |
|
sb->s_encoding = NULL; |
|
#endif |
|
free_options: |
|
#ifdef CONFIG_QUOTA |
|
for (i = 0; i < MAXQUOTAS; i++) |
|
kfree(F2FS_OPTION(sbi).s_qf_names[i]); |
|
#endif |
|
fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy); |
|
kvfree(options); |
|
free_sb_buf: |
|
kfree(raw_super); |
|
free_sbi: |
|
if (sbi->s_chksum_driver) |
|
crypto_free_shash(sbi->s_chksum_driver); |
|
kfree(sbi); |
|
|
|
/* give only one another chance */ |
|
if (retry_cnt > 0 && skip_recovery) { |
|
retry_cnt--; |
|
shrink_dcache_sb(sb); |
|
goto try_onemore; |
|
} |
|
return err; |
|
} |
|
|
|
static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, |
|
const char *dev_name, void *data) |
|
{ |
|
return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super); |
|
} |
|
|
|
static void kill_f2fs_super(struct super_block *sb) |
|
{ |
|
if (sb->s_root) { |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
|
|
set_sbi_flag(sbi, SBI_IS_CLOSE); |
|
f2fs_stop_gc_thread(sbi); |
|
f2fs_stop_discard_thread(sbi); |
|
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
/* |
|
* latter evict_inode() can bypass checking and invalidating |
|
* compress inode cache. |
|
*/ |
|
if (test_opt(sbi, COMPRESS_CACHE)) |
|
truncate_inode_pages_final(COMPRESS_MAPPING(sbi)); |
|
#endif |
|
|
|
if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) || |
|
!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) { |
|
struct cp_control cpc = { |
|
.reason = CP_UMOUNT, |
|
}; |
|
f2fs_write_checkpoint(sbi, &cpc); |
|
} |
|
|
|
if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb)) |
|
sb->s_flags &= ~SB_RDONLY; |
|
} |
|
kill_block_super(sb); |
|
} |
|
|
|
static struct file_system_type f2fs_fs_type = { |
|
.owner = THIS_MODULE, |
|
.name = "f2fs", |
|
.mount = f2fs_mount, |
|
.kill_sb = kill_f2fs_super, |
|
.fs_flags = FS_REQUIRES_DEV, |
|
}; |
|
MODULE_ALIAS_FS("f2fs"); |
|
|
|
static int __init init_inodecache(void) |
|
{ |
|
f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache", |
|
sizeof(struct f2fs_inode_info), 0, |
|
SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL); |
|
if (!f2fs_inode_cachep) |
|
return -ENOMEM; |
|
return 0; |
|
} |
|
|
|
static void destroy_inodecache(void) |
|
{ |
|
/* |
|
* Make sure all delayed rcu free inodes are flushed before we |
|
* destroy cache. |
|
*/ |
|
rcu_barrier(); |
|
kmem_cache_destroy(f2fs_inode_cachep); |
|
} |
|
|
|
static int __init init_f2fs_fs(void) |
|
{ |
|
int err; |
|
|
|
if (PAGE_SIZE != F2FS_BLKSIZE) { |
|
printk("F2FS not supported on PAGE_SIZE(%lu) != %d\n", |
|
PAGE_SIZE, F2FS_BLKSIZE); |
|
return -EINVAL; |
|
} |
|
|
|
err = init_inodecache(); |
|
if (err) |
|
goto fail; |
|
err = f2fs_create_node_manager_caches(); |
|
if (err) |
|
goto free_inodecache; |
|
err = f2fs_create_segment_manager_caches(); |
|
if (err) |
|
goto free_node_manager_caches; |
|
err = f2fs_create_checkpoint_caches(); |
|
if (err) |
|
goto free_segment_manager_caches; |
|
err = f2fs_create_recovery_cache(); |
|
if (err) |
|
goto free_checkpoint_caches; |
|
err = f2fs_create_extent_cache(); |
|
if (err) |
|
goto free_recovery_cache; |
|
err = f2fs_create_garbage_collection_cache(); |
|
if (err) |
|
goto free_extent_cache; |
|
err = f2fs_init_sysfs(); |
|
if (err) |
|
goto free_garbage_collection_cache; |
|
err = register_shrinker(&f2fs_shrinker_info); |
|
if (err) |
|
goto free_sysfs; |
|
err = register_filesystem(&f2fs_fs_type); |
|
if (err) |
|
goto free_shrinker; |
|
f2fs_create_root_stats(); |
|
err = f2fs_init_post_read_processing(); |
|
if (err) |
|
goto free_root_stats; |
|
err = f2fs_init_bio_entry_cache(); |
|
if (err) |
|
goto free_post_read; |
|
err = f2fs_init_bioset(); |
|
if (err) |
|
goto free_bio_enrty_cache; |
|
err = f2fs_init_compress_mempool(); |
|
if (err) |
|
goto free_bioset; |
|
err = f2fs_init_compress_cache(); |
|
if (err) |
|
goto free_compress_mempool; |
|
err = f2fs_create_casefold_cache(); |
|
if (err) |
|
goto free_compress_cache; |
|
return 0; |
|
free_compress_cache: |
|
f2fs_destroy_compress_cache(); |
|
free_compress_mempool: |
|
f2fs_destroy_compress_mempool(); |
|
free_bioset: |
|
f2fs_destroy_bioset(); |
|
free_bio_enrty_cache: |
|
f2fs_destroy_bio_entry_cache(); |
|
free_post_read: |
|
f2fs_destroy_post_read_processing(); |
|
free_root_stats: |
|
f2fs_destroy_root_stats(); |
|
unregister_filesystem(&f2fs_fs_type); |
|
free_shrinker: |
|
unregister_shrinker(&f2fs_shrinker_info); |
|
free_sysfs: |
|
f2fs_exit_sysfs(); |
|
free_garbage_collection_cache: |
|
f2fs_destroy_garbage_collection_cache(); |
|
free_extent_cache: |
|
f2fs_destroy_extent_cache(); |
|
free_recovery_cache: |
|
f2fs_destroy_recovery_cache(); |
|
free_checkpoint_caches: |
|
f2fs_destroy_checkpoint_caches(); |
|
free_segment_manager_caches: |
|
f2fs_destroy_segment_manager_caches(); |
|
free_node_manager_caches: |
|
f2fs_destroy_node_manager_caches(); |
|
free_inodecache: |
|
destroy_inodecache(); |
|
fail: |
|
return err; |
|
} |
|
|
|
static void __exit exit_f2fs_fs(void) |
|
{ |
|
f2fs_destroy_casefold_cache(); |
|
f2fs_destroy_compress_cache(); |
|
f2fs_destroy_compress_mempool(); |
|
f2fs_destroy_bioset(); |
|
f2fs_destroy_bio_entry_cache(); |
|
f2fs_destroy_post_read_processing(); |
|
f2fs_destroy_root_stats(); |
|
unregister_filesystem(&f2fs_fs_type); |
|
unregister_shrinker(&f2fs_shrinker_info); |
|
f2fs_exit_sysfs(); |
|
f2fs_destroy_garbage_collection_cache(); |
|
f2fs_destroy_extent_cache(); |
|
f2fs_destroy_recovery_cache(); |
|
f2fs_destroy_checkpoint_caches(); |
|
f2fs_destroy_segment_manager_caches(); |
|
f2fs_destroy_node_manager_caches(); |
|
destroy_inodecache(); |
|
} |
|
|
|
module_init(init_f2fs_fs) |
|
module_exit(exit_f2fs_fs) |
|
|
|
MODULE_AUTHOR("Samsung Electronics's Praesto Team"); |
|
MODULE_DESCRIPTION("Flash Friendly File System"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_SOFTDEP("pre: crc32"); |
|
|
|
|