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1214 lines
35 KiB
1214 lines
35 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* f2fs sysfs interface |
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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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* Copyright (c) 2017 Chao Yu <[email protected]> |
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*/ |
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#include <linux/compiler.h> |
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#include <linux/proc_fs.h> |
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#include <linux/f2fs_fs.h> |
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#include <linux/seq_file.h> |
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#include <linux/unicode.h> |
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#include <linux/ioprio.h> |
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#include <linux/sysfs.h> |
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|
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#include "f2fs.h" |
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#include "segment.h" |
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#include "gc.h" |
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#include "iostat.h" |
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#include <trace/events/f2fs.h> |
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|
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static struct proc_dir_entry *f2fs_proc_root; |
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|
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/* Sysfs support for f2fs */ |
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enum { |
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GC_THREAD, /* struct f2fs_gc_thread */ |
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SM_INFO, /* struct f2fs_sm_info */ |
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DCC_INFO, /* struct discard_cmd_control */ |
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NM_INFO, /* struct f2fs_nm_info */ |
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F2FS_SBI, /* struct f2fs_sb_info */ |
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#ifdef CONFIG_F2FS_STAT_FS |
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STAT_INFO, /* struct f2fs_stat_info */ |
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#endif |
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#ifdef CONFIG_F2FS_FAULT_INJECTION |
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FAULT_INFO_RATE, /* struct f2fs_fault_info */ |
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FAULT_INFO_TYPE, /* struct f2fs_fault_info */ |
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#endif |
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RESERVED_BLOCKS, /* struct f2fs_sb_info */ |
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CPRC_INFO, /* struct ckpt_req_control */ |
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ATGC_INFO, /* struct atgc_management */ |
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}; |
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|
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struct f2fs_attr { |
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struct attribute attr; |
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ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *); |
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ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *, |
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const char *, size_t); |
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int struct_type; |
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int offset; |
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int id; |
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}; |
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|
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static ssize_t f2fs_sbi_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf); |
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|
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static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type) |
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{ |
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if (struct_type == GC_THREAD) |
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return (unsigned char *)sbi->gc_thread; |
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else if (struct_type == SM_INFO) |
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return (unsigned char *)SM_I(sbi); |
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else if (struct_type == DCC_INFO) |
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return (unsigned char *)SM_I(sbi)->dcc_info; |
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else if (struct_type == NM_INFO) |
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return (unsigned char *)NM_I(sbi); |
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else if (struct_type == F2FS_SBI || struct_type == RESERVED_BLOCKS) |
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return (unsigned char *)sbi; |
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#ifdef CONFIG_F2FS_FAULT_INJECTION |
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else if (struct_type == FAULT_INFO_RATE || |
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struct_type == FAULT_INFO_TYPE) |
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return (unsigned char *)&F2FS_OPTION(sbi).fault_info; |
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#endif |
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#ifdef CONFIG_F2FS_STAT_FS |
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else if (struct_type == STAT_INFO) |
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return (unsigned char *)F2FS_STAT(sbi); |
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#endif |
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else if (struct_type == CPRC_INFO) |
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return (unsigned char *)&sbi->cprc_info; |
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else if (struct_type == ATGC_INFO) |
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return (unsigned char *)&sbi->am; |
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return NULL; |
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} |
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|
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static ssize_t dirty_segments_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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return sprintf(buf, "%llu\n", |
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(unsigned long long)(dirty_segments(sbi))); |
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} |
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|
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static ssize_t free_segments_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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return sprintf(buf, "%llu\n", |
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(unsigned long long)(free_segments(sbi))); |
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} |
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|
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static ssize_t ovp_segments_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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return sprintf(buf, "%llu\n", |
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(unsigned long long)(overprovision_segments(sbi))); |
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} |
|
|
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static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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return sprintf(buf, "%llu\n", |
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(unsigned long long)(sbi->kbytes_written + |
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((f2fs_get_sectors_written(sbi) - |
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sbi->sectors_written_start) >> 1))); |
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} |
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|
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static ssize_t sb_status_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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return sprintf(buf, "%lx\n", sbi->s_flag); |
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} |
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|
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static ssize_t features_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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int len = 0; |
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|
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if (f2fs_sb_has_encrypt(sbi)) |
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len += scnprintf(buf, PAGE_SIZE - len, "%s", |
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"encryption"); |
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if (f2fs_sb_has_blkzoned(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "blkzoned"); |
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if (f2fs_sb_has_extra_attr(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "extra_attr"); |
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if (f2fs_sb_has_project_quota(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "projquota"); |
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if (f2fs_sb_has_inode_chksum(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "inode_checksum"); |
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if (f2fs_sb_has_flexible_inline_xattr(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "flexible_inline_xattr"); |
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if (f2fs_sb_has_quota_ino(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "quota_ino"); |
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if (f2fs_sb_has_inode_crtime(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "inode_crtime"); |
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if (f2fs_sb_has_lost_found(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "lost_found"); |
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if (f2fs_sb_has_verity(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "verity"); |
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if (f2fs_sb_has_sb_chksum(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "sb_checksum"); |
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if (f2fs_sb_has_casefold(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "casefold"); |
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if (f2fs_sb_has_readonly(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "readonly"); |
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if (f2fs_sb_has_compression(sbi)) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "compression"); |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s", |
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len ? ", " : "", "pin_file"); |
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len += scnprintf(buf + len, PAGE_SIZE - len, "\n"); |
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return len; |
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} |
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|
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static ssize_t current_reserved_blocks_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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return sprintf(buf, "%u\n", sbi->current_reserved_blocks); |
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} |
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|
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static ssize_t unusable_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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block_t unusable; |
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|
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if (test_opt(sbi, DISABLE_CHECKPOINT)) |
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unusable = sbi->unusable_block_count; |
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else |
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unusable = f2fs_get_unusable_blocks(sbi); |
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return sprintf(buf, "%llu\n", (unsigned long long)unusable); |
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} |
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|
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static ssize_t encoding_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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#ifdef CONFIG_UNICODE |
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struct super_block *sb = sbi->sb; |
|
|
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if (f2fs_sb_has_casefold(sbi)) |
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return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n", |
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sb->s_encoding->charset, |
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(sb->s_encoding->version >> 16) & 0xff, |
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(sb->s_encoding->version >> 8) & 0xff, |
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sb->s_encoding->version & 0xff); |
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#endif |
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return sprintf(buf, "(none)"); |
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} |
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|
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static ssize_t mounted_time_sec_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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return sprintf(buf, "%llu", SIT_I(sbi)->mounted_time); |
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} |
|
|
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#ifdef CONFIG_F2FS_STAT_FS |
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static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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struct f2fs_stat_info *si = F2FS_STAT(sbi); |
|
|
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return sprintf(buf, "%llu\n", |
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(unsigned long long)(si->tot_blks - |
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(si->bg_data_blks + si->bg_node_blks))); |
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} |
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|
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static ssize_t moved_blocks_background_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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struct f2fs_stat_info *si = F2FS_STAT(sbi); |
|
|
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return sprintf(buf, "%llu\n", |
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(unsigned long long)(si->bg_data_blks + si->bg_node_blks)); |
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} |
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|
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static ssize_t avg_vblocks_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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struct f2fs_stat_info *si = F2FS_STAT(sbi); |
|
|
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si->dirty_count = dirty_segments(sbi); |
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f2fs_update_sit_info(sbi); |
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return sprintf(buf, "%llu\n", (unsigned long long)(si->avg_vblocks)); |
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} |
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#endif |
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|
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static ssize_t main_blkaddr_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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return snprintf(buf, PAGE_SIZE, "%llu\n", |
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(unsigned long long)MAIN_BLKADDR(sbi)); |
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} |
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|
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static ssize_t f2fs_sbi_show(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, char *buf) |
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{ |
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unsigned char *ptr = NULL; |
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unsigned int *ui; |
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|
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ptr = __struct_ptr(sbi, a->struct_type); |
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if (!ptr) |
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return -EINVAL; |
|
|
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if (!strcmp(a->attr.name, "extension_list")) { |
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__u8 (*extlist)[F2FS_EXTENSION_LEN] = |
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sbi->raw_super->extension_list; |
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int cold_count = le32_to_cpu(sbi->raw_super->extension_count); |
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int hot_count = sbi->raw_super->hot_ext_count; |
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int len = 0, i; |
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|
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len += scnprintf(buf + len, PAGE_SIZE - len, |
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"cold file extension:\n"); |
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for (i = 0; i < cold_count; i++) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n", |
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extlist[i]); |
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|
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len += scnprintf(buf + len, PAGE_SIZE - len, |
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"hot file extension:\n"); |
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for (i = cold_count; i < cold_count + hot_count; i++) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n", |
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extlist[i]); |
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return len; |
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} |
|
|
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if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) { |
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struct ckpt_req_control *cprc = &sbi->cprc_info; |
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int len = 0; |
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int class = IOPRIO_PRIO_CLASS(cprc->ckpt_thread_ioprio); |
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int data = IOPRIO_PRIO_DATA(cprc->ckpt_thread_ioprio); |
|
|
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if (class == IOPRIO_CLASS_RT) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "rt,"); |
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else if (class == IOPRIO_CLASS_BE) |
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len += scnprintf(buf + len, PAGE_SIZE - len, "be,"); |
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else |
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return -EINVAL; |
|
|
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len += scnprintf(buf + len, PAGE_SIZE - len, "%d\n", data); |
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return len; |
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} |
|
|
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#ifdef CONFIG_F2FS_FS_COMPRESSION |
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if (!strcmp(a->attr.name, "compr_written_block")) |
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return sysfs_emit(buf, "%llu\n", sbi->compr_written_block); |
|
|
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if (!strcmp(a->attr.name, "compr_saved_block")) |
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return sysfs_emit(buf, "%llu\n", sbi->compr_saved_block); |
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|
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if (!strcmp(a->attr.name, "compr_new_inode")) |
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return sysfs_emit(buf, "%u\n", sbi->compr_new_inode); |
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#endif |
|
|
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if (!strcmp(a->attr.name, "gc_segment_mode")) |
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return sysfs_emit(buf, "%u\n", sbi->gc_segment_mode); |
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|
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if (!strcmp(a->attr.name, "gc_reclaimed_segments")) { |
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return sysfs_emit(buf, "%u\n", |
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sbi->gc_reclaimed_segs[sbi->gc_segment_mode]); |
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} |
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|
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ui = (unsigned int *)(ptr + a->offset); |
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|
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return sprintf(buf, "%u\n", *ui); |
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} |
|
|
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static ssize_t __sbi_store(struct f2fs_attr *a, |
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struct f2fs_sb_info *sbi, |
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const char *buf, size_t count) |
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{ |
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unsigned char *ptr; |
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unsigned long t; |
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unsigned int *ui; |
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ssize_t ret; |
|
|
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ptr = __struct_ptr(sbi, a->struct_type); |
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if (!ptr) |
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return -EINVAL; |
|
|
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if (!strcmp(a->attr.name, "extension_list")) { |
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const char *name = strim((char *)buf); |
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bool set = true, hot; |
|
|
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if (!strncmp(name, "[h]", 3)) |
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hot = true; |
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else if (!strncmp(name, "[c]", 3)) |
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hot = false; |
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else |
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return -EINVAL; |
|
|
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name += 3; |
|
|
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if (*name == '!') { |
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name++; |
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set = false; |
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} |
|
|
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if (!strlen(name) || strlen(name) >= F2FS_EXTENSION_LEN) |
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return -EINVAL; |
|
|
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down_write(&sbi->sb_lock); |
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|
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ret = f2fs_update_extension_list(sbi, name, hot, set); |
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if (ret) |
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goto out; |
|
|
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ret = f2fs_commit_super(sbi, false); |
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if (ret) |
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f2fs_update_extension_list(sbi, name, hot, !set); |
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out: |
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up_write(&sbi->sb_lock); |
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return ret ? ret : count; |
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} |
|
|
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if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) { |
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const char *name = strim((char *)buf); |
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struct ckpt_req_control *cprc = &sbi->cprc_info; |
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int class; |
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long data; |
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int ret; |
|
|
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if (!strncmp(name, "rt,", 3)) |
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class = IOPRIO_CLASS_RT; |
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else if (!strncmp(name, "be,", 3)) |
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class = IOPRIO_CLASS_BE; |
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else |
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return -EINVAL; |
|
|
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name += 3; |
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ret = kstrtol(name, 10, &data); |
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if (ret) |
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return ret; |
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if (data >= IOPRIO_NR_LEVELS || data < 0) |
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return -EINVAL; |
|
|
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cprc->ckpt_thread_ioprio = IOPRIO_PRIO_VALUE(class, data); |
|
if (test_opt(sbi, MERGE_CHECKPOINT)) { |
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ret = set_task_ioprio(cprc->f2fs_issue_ckpt, |
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cprc->ckpt_thread_ioprio); |
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if (ret) |
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return ret; |
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} |
|
|
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return count; |
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} |
|
|
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ui = (unsigned int *)(ptr + a->offset); |
|
|
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ret = kstrtoul(skip_spaces(buf), 0, &t); |
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if (ret < 0) |
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return ret; |
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#ifdef CONFIG_F2FS_FAULT_INJECTION |
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if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX)) |
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return -EINVAL; |
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if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX) |
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return -EINVAL; |
|
#endif |
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if (a->struct_type == RESERVED_BLOCKS) { |
|
spin_lock(&sbi->stat_lock); |
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if (t > (unsigned long)(sbi->user_block_count - |
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F2FS_OPTION(sbi).root_reserved_blocks)) { |
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spin_unlock(&sbi->stat_lock); |
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return -EINVAL; |
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} |
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*ui = t; |
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sbi->current_reserved_blocks = min(sbi->reserved_blocks, |
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sbi->user_block_count - valid_user_blocks(sbi)); |
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spin_unlock(&sbi->stat_lock); |
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return count; |
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} |
|
|
|
if (!strcmp(a->attr.name, "discard_granularity")) { |
|
if (t == 0 || t > MAX_PLIST_NUM) |
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return -EINVAL; |
|
if (!f2fs_block_unit_discard(sbi)) |
|
return -EINVAL; |
|
if (t == *ui) |
|
return count; |
|
*ui = t; |
|
return count; |
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} |
|
|
|
if (!strcmp(a->attr.name, "migration_granularity")) { |
|
if (t == 0 || t > sbi->segs_per_sec) |
|
return -EINVAL; |
|
} |
|
|
|
if (!strcmp(a->attr.name, "trim_sections")) |
|
return -EINVAL; |
|
|
|
if (!strcmp(a->attr.name, "gc_urgent")) { |
|
if (t == 0) { |
|
sbi->gc_mode = GC_NORMAL; |
|
} else if (t == 1) { |
|
sbi->gc_mode = GC_URGENT_HIGH; |
|
if (sbi->gc_thread) { |
|
sbi->gc_thread->gc_wake = 1; |
|
wake_up_interruptible_all( |
|
&sbi->gc_thread->gc_wait_queue_head); |
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wake_up_discard_thread(sbi, true); |
|
} |
|
} else if (t == 2) { |
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sbi->gc_mode = GC_URGENT_LOW; |
|
} else { |
|
return -EINVAL; |
|
} |
|
return count; |
|
} |
|
if (!strcmp(a->attr.name, "gc_idle")) { |
|
if (t == GC_IDLE_CB) { |
|
sbi->gc_mode = GC_IDLE_CB; |
|
} else if (t == GC_IDLE_GREEDY) { |
|
sbi->gc_mode = GC_IDLE_GREEDY; |
|
} else if (t == GC_IDLE_AT) { |
|
if (!sbi->am.atgc_enabled) |
|
return -EINVAL; |
|
sbi->gc_mode = GC_AT; |
|
} else { |
|
sbi->gc_mode = GC_NORMAL; |
|
} |
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return count; |
|
} |
|
|
|
#ifdef CONFIG_F2FS_IOSTAT |
|
if (!strcmp(a->attr.name, "iostat_enable")) { |
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sbi->iostat_enable = !!t; |
|
if (!sbi->iostat_enable) |
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f2fs_reset_iostat(sbi); |
|
return count; |
|
} |
|
|
|
if (!strcmp(a->attr.name, "iostat_period_ms")) { |
|
if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS) |
|
return -EINVAL; |
|
spin_lock(&sbi->iostat_lock); |
|
sbi->iostat_period_ms = (unsigned int)t; |
|
spin_unlock(&sbi->iostat_lock); |
|
return count; |
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} |
|
#endif |
|
|
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
if (!strcmp(a->attr.name, "compr_written_block") || |
|
!strcmp(a->attr.name, "compr_saved_block")) { |
|
if (t != 0) |
|
return -EINVAL; |
|
sbi->compr_written_block = 0; |
|
sbi->compr_saved_block = 0; |
|
return count; |
|
} |
|
|
|
if (!strcmp(a->attr.name, "compr_new_inode")) { |
|
if (t != 0) |
|
return -EINVAL; |
|
sbi->compr_new_inode = 0; |
|
return count; |
|
} |
|
#endif |
|
|
|
if (!strcmp(a->attr.name, "atgc_candidate_ratio")) { |
|
if (t > 100) |
|
return -EINVAL; |
|
sbi->am.candidate_ratio = t; |
|
return count; |
|
} |
|
|
|
if (!strcmp(a->attr.name, "atgc_age_weight")) { |
|
if (t > 100) |
|
return -EINVAL; |
|
sbi->am.age_weight = t; |
|
return count; |
|
} |
|
|
|
if (!strcmp(a->attr.name, "gc_segment_mode")) { |
|
if (t < MAX_GC_MODE) |
|
sbi->gc_segment_mode = t; |
|
else |
|
return -EINVAL; |
|
return count; |
|
} |
|
|
|
if (!strcmp(a->attr.name, "gc_reclaimed_segments")) { |
|
if (t != 0) |
|
return -EINVAL; |
|
sbi->gc_reclaimed_segs[sbi->gc_segment_mode] = 0; |
|
return count; |
|
} |
|
|
|
if (!strcmp(a->attr.name, "seq_file_ra_mul")) { |
|
if (t >= MIN_RA_MUL && t <= MAX_RA_MUL) |
|
sbi->seq_file_ra_mul = t; |
|
else |
|
return -EINVAL; |
|
return count; |
|
} |
|
|
|
*ui = (unsigned int)t; |
|
|
|
return count; |
|
} |
|
|
|
static ssize_t f2fs_sbi_store(struct f2fs_attr *a, |
|
struct f2fs_sb_info *sbi, |
|
const char *buf, size_t count) |
|
{ |
|
ssize_t ret; |
|
bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") || |
|
a->struct_type == GC_THREAD); |
|
|
|
if (gc_entry) { |
|
if (!down_read_trylock(&sbi->sb->s_umount)) |
|
return -EAGAIN; |
|
} |
|
ret = __sbi_store(a, sbi, buf, count); |
|
if (gc_entry) |
|
up_read(&sbi->sb->s_umount); |
|
|
|
return ret; |
|
} |
|
|
|
static ssize_t f2fs_attr_show(struct kobject *kobj, |
|
struct attribute *attr, char *buf) |
|
{ |
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, |
|
s_kobj); |
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); |
|
|
|
return a->show ? a->show(a, sbi, buf) : 0; |
|
} |
|
|
|
static ssize_t f2fs_attr_store(struct kobject *kobj, struct attribute *attr, |
|
const char *buf, size_t len) |
|
{ |
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, |
|
s_kobj); |
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); |
|
|
|
return a->store ? a->store(a, sbi, buf, len) : 0; |
|
} |
|
|
|
static void f2fs_sb_release(struct kobject *kobj) |
|
{ |
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, |
|
s_kobj); |
|
complete(&sbi->s_kobj_unregister); |
|
} |
|
|
|
/* |
|
* Note that there are three feature list entries: |
|
* 1) /sys/fs/f2fs/features |
|
* : shows runtime features supported by in-kernel f2fs along with Kconfig. |
|
* - ref. F2FS_FEATURE_RO_ATTR() |
|
* |
|
* 2) /sys/fs/f2fs/$s_id/features <deprecated> |
|
* : shows on-disk features enabled by mkfs.f2fs, used for old kernels. This |
|
* won't add new feature anymore, and thus, users should check entries in 3) |
|
* instead of this 2). |
|
* |
|
* 3) /sys/fs/f2fs/$s_id/feature_list |
|
* : shows on-disk features enabled by mkfs.f2fs per instance, which follows |
|
* sysfs entry rule where each entry should expose single value. |
|
* This list covers old feature list provided by 2) and beyond. Therefore, |
|
* please add new on-disk feature in this list only. |
|
* - ref. F2FS_SB_FEATURE_RO_ATTR() |
|
*/ |
|
static ssize_t f2fs_feature_show(struct f2fs_attr *a, |
|
struct f2fs_sb_info *sbi, char *buf) |
|
{ |
|
return sprintf(buf, "supported\n"); |
|
} |
|
|
|
#define F2FS_FEATURE_RO_ATTR(_name) \ |
|
static struct f2fs_attr f2fs_attr_##_name = { \ |
|
.attr = {.name = __stringify(_name), .mode = 0444 }, \ |
|
.show = f2fs_feature_show, \ |
|
} |
|
|
|
static ssize_t f2fs_sb_feature_show(struct f2fs_attr *a, |
|
struct f2fs_sb_info *sbi, char *buf) |
|
{ |
|
if (F2FS_HAS_FEATURE(sbi, a->id)) |
|
return sprintf(buf, "supported\n"); |
|
return sprintf(buf, "unsupported\n"); |
|
} |
|
|
|
#define F2FS_SB_FEATURE_RO_ATTR(_name, _feat) \ |
|
static struct f2fs_attr f2fs_attr_sb_##_name = { \ |
|
.attr = {.name = __stringify(_name), .mode = 0444 }, \ |
|
.show = f2fs_sb_feature_show, \ |
|
.id = F2FS_FEATURE_##_feat, \ |
|
} |
|
|
|
#define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \ |
|
static struct f2fs_attr f2fs_attr_##_name = { \ |
|
.attr = {.name = __stringify(_name), .mode = _mode }, \ |
|
.show = _show, \ |
|
.store = _store, \ |
|
.struct_type = _struct_type, \ |
|
.offset = _offset \ |
|
} |
|
|
|
#define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \ |
|
F2FS_ATTR_OFFSET(struct_type, name, 0644, \ |
|
f2fs_sbi_show, f2fs_sbi_store, \ |
|
offsetof(struct struct_name, elname)) |
|
|
|
#define F2FS_GENERAL_RO_ATTR(name) \ |
|
static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL) |
|
|
|
#define F2FS_STAT_ATTR(_struct_type, _struct_name, _name, _elname) \ |
|
static struct f2fs_attr f2fs_attr_##_name = { \ |
|
.attr = {.name = __stringify(_name), .mode = 0444 }, \ |
|
.show = f2fs_sbi_show, \ |
|
.struct_type = _struct_type, \ |
|
.offset = offsetof(struct _struct_name, _elname), \ |
|
} |
|
|
|
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time, |
|
urgent_sleep_time); |
|
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time); |
|
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time); |
|
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode); |
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments); |
|
F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards); |
|
F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity); |
|
F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks); |
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections); |
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy); |
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util); |
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks); |
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_seq_blocks, min_seq_blocks); |
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks); |
|
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections); |
|
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh); |
|
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages); |
|
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval, |
|
interval_time[DISCARD_TIME]); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, |
|
umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]); |
|
#ifdef CONFIG_F2FS_IOSTAT |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_period_ms, iostat_period_ms); |
|
#endif |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_io_bytes, max_io_bytes); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list); |
|
#ifdef CONFIG_F2FS_FAULT_INJECTION |
|
F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate); |
|
F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type); |
|
#endif |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag); |
|
F2FS_RW_ATTR(CPRC_INFO, ckpt_req_control, ckpt_thread_ioprio, ckpt_thread_ioprio); |
|
F2FS_GENERAL_RO_ATTR(dirty_segments); |
|
F2FS_GENERAL_RO_ATTR(free_segments); |
|
F2FS_GENERAL_RO_ATTR(ovp_segments); |
|
F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes); |
|
F2FS_GENERAL_RO_ATTR(features); |
|
F2FS_GENERAL_RO_ATTR(current_reserved_blocks); |
|
F2FS_GENERAL_RO_ATTR(unusable); |
|
F2FS_GENERAL_RO_ATTR(encoding); |
|
F2FS_GENERAL_RO_ATTR(mounted_time_sec); |
|
F2FS_GENERAL_RO_ATTR(main_blkaddr); |
|
#ifdef CONFIG_F2FS_STAT_FS |
|
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count); |
|
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count); |
|
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_foreground_calls, call_count); |
|
F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_background_calls, bg_gc); |
|
F2FS_GENERAL_RO_ATTR(moved_blocks_background); |
|
F2FS_GENERAL_RO_ATTR(moved_blocks_foreground); |
|
F2FS_GENERAL_RO_ATTR(avg_vblocks); |
|
#endif |
|
|
|
#ifdef CONFIG_FS_ENCRYPTION |
|
F2FS_FEATURE_RO_ATTR(encryption); |
|
F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2); |
|
#ifdef CONFIG_UNICODE |
|
F2FS_FEATURE_RO_ATTR(encrypted_casefold); |
|
#endif |
|
#endif /* CONFIG_FS_ENCRYPTION */ |
|
#ifdef CONFIG_BLK_DEV_ZONED |
|
F2FS_FEATURE_RO_ATTR(block_zoned); |
|
#endif |
|
F2FS_FEATURE_RO_ATTR(atomic_write); |
|
F2FS_FEATURE_RO_ATTR(extra_attr); |
|
F2FS_FEATURE_RO_ATTR(project_quota); |
|
F2FS_FEATURE_RO_ATTR(inode_checksum); |
|
F2FS_FEATURE_RO_ATTR(flexible_inline_xattr); |
|
F2FS_FEATURE_RO_ATTR(quota_ino); |
|
F2FS_FEATURE_RO_ATTR(inode_crtime); |
|
F2FS_FEATURE_RO_ATTR(lost_found); |
|
#ifdef CONFIG_FS_VERITY |
|
F2FS_FEATURE_RO_ATTR(verity); |
|
#endif |
|
F2FS_FEATURE_RO_ATTR(sb_checksum); |
|
#ifdef CONFIG_UNICODE |
|
F2FS_FEATURE_RO_ATTR(casefold); |
|
#endif |
|
F2FS_FEATURE_RO_ATTR(readonly); |
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
F2FS_FEATURE_RO_ATTR(compression); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_written_block, compr_written_block); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_saved_block, compr_saved_block); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_new_inode, compr_new_inode); |
|
#endif |
|
F2FS_FEATURE_RO_ATTR(pin_file); |
|
|
|
/* For ATGC */ |
|
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_ratio, candidate_ratio); |
|
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_count, max_candidate_count); |
|
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_weight, age_weight); |
|
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_threshold, age_threshold); |
|
|
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, seq_file_ra_mul, seq_file_ra_mul); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_segment_mode, gc_segment_mode); |
|
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_reclaimed_segments, gc_reclaimed_segs); |
|
|
|
#define ATTR_LIST(name) (&f2fs_attr_##name.attr) |
|
static struct attribute *f2fs_attrs[] = { |
|
ATTR_LIST(gc_urgent_sleep_time), |
|
ATTR_LIST(gc_min_sleep_time), |
|
ATTR_LIST(gc_max_sleep_time), |
|
ATTR_LIST(gc_no_gc_sleep_time), |
|
ATTR_LIST(gc_idle), |
|
ATTR_LIST(gc_urgent), |
|
ATTR_LIST(reclaim_segments), |
|
ATTR_LIST(main_blkaddr), |
|
ATTR_LIST(max_small_discards), |
|
ATTR_LIST(discard_granularity), |
|
ATTR_LIST(batched_trim_sections), |
|
ATTR_LIST(ipu_policy), |
|
ATTR_LIST(min_ipu_util), |
|
ATTR_LIST(min_fsync_blocks), |
|
ATTR_LIST(min_seq_blocks), |
|
ATTR_LIST(min_hot_blocks), |
|
ATTR_LIST(min_ssr_sections), |
|
ATTR_LIST(max_victim_search), |
|
ATTR_LIST(migration_granularity), |
|
ATTR_LIST(dir_level), |
|
ATTR_LIST(ram_thresh), |
|
ATTR_LIST(ra_nid_pages), |
|
ATTR_LIST(dirty_nats_ratio), |
|
ATTR_LIST(cp_interval), |
|
ATTR_LIST(idle_interval), |
|
ATTR_LIST(discard_idle_interval), |
|
ATTR_LIST(gc_idle_interval), |
|
ATTR_LIST(umount_discard_timeout), |
|
#ifdef CONFIG_F2FS_IOSTAT |
|
ATTR_LIST(iostat_enable), |
|
ATTR_LIST(iostat_period_ms), |
|
#endif |
|
ATTR_LIST(readdir_ra), |
|
ATTR_LIST(max_io_bytes), |
|
ATTR_LIST(gc_pin_file_thresh), |
|
ATTR_LIST(extension_list), |
|
#ifdef CONFIG_F2FS_FAULT_INJECTION |
|
ATTR_LIST(inject_rate), |
|
ATTR_LIST(inject_type), |
|
#endif |
|
ATTR_LIST(data_io_flag), |
|
ATTR_LIST(node_io_flag), |
|
ATTR_LIST(ckpt_thread_ioprio), |
|
ATTR_LIST(dirty_segments), |
|
ATTR_LIST(free_segments), |
|
ATTR_LIST(ovp_segments), |
|
ATTR_LIST(unusable), |
|
ATTR_LIST(lifetime_write_kbytes), |
|
ATTR_LIST(features), |
|
ATTR_LIST(reserved_blocks), |
|
ATTR_LIST(current_reserved_blocks), |
|
ATTR_LIST(encoding), |
|
ATTR_LIST(mounted_time_sec), |
|
#ifdef CONFIG_F2FS_STAT_FS |
|
ATTR_LIST(cp_foreground_calls), |
|
ATTR_LIST(cp_background_calls), |
|
ATTR_LIST(gc_foreground_calls), |
|
ATTR_LIST(gc_background_calls), |
|
ATTR_LIST(moved_blocks_foreground), |
|
ATTR_LIST(moved_blocks_background), |
|
ATTR_LIST(avg_vblocks), |
|
#endif |
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
ATTR_LIST(compr_written_block), |
|
ATTR_LIST(compr_saved_block), |
|
ATTR_LIST(compr_new_inode), |
|
#endif |
|
/* For ATGC */ |
|
ATTR_LIST(atgc_candidate_ratio), |
|
ATTR_LIST(atgc_candidate_count), |
|
ATTR_LIST(atgc_age_weight), |
|
ATTR_LIST(atgc_age_threshold), |
|
ATTR_LIST(seq_file_ra_mul), |
|
ATTR_LIST(gc_segment_mode), |
|
ATTR_LIST(gc_reclaimed_segments), |
|
NULL, |
|
}; |
|
ATTRIBUTE_GROUPS(f2fs); |
|
|
|
static struct attribute *f2fs_feat_attrs[] = { |
|
#ifdef CONFIG_FS_ENCRYPTION |
|
ATTR_LIST(encryption), |
|
ATTR_LIST(test_dummy_encryption_v2), |
|
#ifdef CONFIG_UNICODE |
|
ATTR_LIST(encrypted_casefold), |
|
#endif |
|
#endif /* CONFIG_FS_ENCRYPTION */ |
|
#ifdef CONFIG_BLK_DEV_ZONED |
|
ATTR_LIST(block_zoned), |
|
#endif |
|
ATTR_LIST(atomic_write), |
|
ATTR_LIST(extra_attr), |
|
ATTR_LIST(project_quota), |
|
ATTR_LIST(inode_checksum), |
|
ATTR_LIST(flexible_inline_xattr), |
|
ATTR_LIST(quota_ino), |
|
ATTR_LIST(inode_crtime), |
|
ATTR_LIST(lost_found), |
|
#ifdef CONFIG_FS_VERITY |
|
ATTR_LIST(verity), |
|
#endif |
|
ATTR_LIST(sb_checksum), |
|
#ifdef CONFIG_UNICODE |
|
ATTR_LIST(casefold), |
|
#endif |
|
ATTR_LIST(readonly), |
|
#ifdef CONFIG_F2FS_FS_COMPRESSION |
|
ATTR_LIST(compression), |
|
#endif |
|
ATTR_LIST(pin_file), |
|
NULL, |
|
}; |
|
ATTRIBUTE_GROUPS(f2fs_feat); |
|
|
|
F2FS_GENERAL_RO_ATTR(sb_status); |
|
static struct attribute *f2fs_stat_attrs[] = { |
|
ATTR_LIST(sb_status), |
|
NULL, |
|
}; |
|
ATTRIBUTE_GROUPS(f2fs_stat); |
|
|
|
F2FS_SB_FEATURE_RO_ATTR(encryption, ENCRYPT); |
|
F2FS_SB_FEATURE_RO_ATTR(block_zoned, BLKZONED); |
|
F2FS_SB_FEATURE_RO_ATTR(extra_attr, EXTRA_ATTR); |
|
F2FS_SB_FEATURE_RO_ATTR(project_quota, PRJQUOTA); |
|
F2FS_SB_FEATURE_RO_ATTR(inode_checksum, INODE_CHKSUM); |
|
F2FS_SB_FEATURE_RO_ATTR(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR); |
|
F2FS_SB_FEATURE_RO_ATTR(quota_ino, QUOTA_INO); |
|
F2FS_SB_FEATURE_RO_ATTR(inode_crtime, INODE_CRTIME); |
|
F2FS_SB_FEATURE_RO_ATTR(lost_found, LOST_FOUND); |
|
F2FS_SB_FEATURE_RO_ATTR(verity, VERITY); |
|
F2FS_SB_FEATURE_RO_ATTR(sb_checksum, SB_CHKSUM); |
|
F2FS_SB_FEATURE_RO_ATTR(casefold, CASEFOLD); |
|
F2FS_SB_FEATURE_RO_ATTR(compression, COMPRESSION); |
|
F2FS_SB_FEATURE_RO_ATTR(readonly, RO); |
|
|
|
static struct attribute *f2fs_sb_feat_attrs[] = { |
|
ATTR_LIST(sb_encryption), |
|
ATTR_LIST(sb_block_zoned), |
|
ATTR_LIST(sb_extra_attr), |
|
ATTR_LIST(sb_project_quota), |
|
ATTR_LIST(sb_inode_checksum), |
|
ATTR_LIST(sb_flexible_inline_xattr), |
|
ATTR_LIST(sb_quota_ino), |
|
ATTR_LIST(sb_inode_crtime), |
|
ATTR_LIST(sb_lost_found), |
|
ATTR_LIST(sb_verity), |
|
ATTR_LIST(sb_sb_checksum), |
|
ATTR_LIST(sb_casefold), |
|
ATTR_LIST(sb_compression), |
|
ATTR_LIST(sb_readonly), |
|
NULL, |
|
}; |
|
ATTRIBUTE_GROUPS(f2fs_sb_feat); |
|
|
|
static const struct sysfs_ops f2fs_attr_ops = { |
|
.show = f2fs_attr_show, |
|
.store = f2fs_attr_store, |
|
}; |
|
|
|
static struct kobj_type f2fs_sb_ktype = { |
|
.default_groups = f2fs_groups, |
|
.sysfs_ops = &f2fs_attr_ops, |
|
.release = f2fs_sb_release, |
|
}; |
|
|
|
static struct kobj_type f2fs_ktype = { |
|
.sysfs_ops = &f2fs_attr_ops, |
|
}; |
|
|
|
static struct kset f2fs_kset = { |
|
.kobj = {.ktype = &f2fs_ktype}, |
|
}; |
|
|
|
static struct kobj_type f2fs_feat_ktype = { |
|
.default_groups = f2fs_feat_groups, |
|
.sysfs_ops = &f2fs_attr_ops, |
|
}; |
|
|
|
static struct kobject f2fs_feat = { |
|
.kset = &f2fs_kset, |
|
}; |
|
|
|
static ssize_t f2fs_stat_attr_show(struct kobject *kobj, |
|
struct attribute *attr, char *buf) |
|
{ |
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, |
|
s_stat_kobj); |
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); |
|
|
|
return a->show ? a->show(a, sbi, buf) : 0; |
|
} |
|
|
|
static ssize_t f2fs_stat_attr_store(struct kobject *kobj, struct attribute *attr, |
|
const char *buf, size_t len) |
|
{ |
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, |
|
s_stat_kobj); |
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); |
|
|
|
return a->store ? a->store(a, sbi, buf, len) : 0; |
|
} |
|
|
|
static void f2fs_stat_kobj_release(struct kobject *kobj) |
|
{ |
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, |
|
s_stat_kobj); |
|
complete(&sbi->s_stat_kobj_unregister); |
|
} |
|
|
|
static const struct sysfs_ops f2fs_stat_attr_ops = { |
|
.show = f2fs_stat_attr_show, |
|
.store = f2fs_stat_attr_store, |
|
}; |
|
|
|
static struct kobj_type f2fs_stat_ktype = { |
|
.default_groups = f2fs_stat_groups, |
|
.sysfs_ops = &f2fs_stat_attr_ops, |
|
.release = f2fs_stat_kobj_release, |
|
}; |
|
|
|
static ssize_t f2fs_sb_feat_attr_show(struct kobject *kobj, |
|
struct attribute *attr, char *buf) |
|
{ |
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, |
|
s_feature_list_kobj); |
|
struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr); |
|
|
|
return a->show ? a->show(a, sbi, buf) : 0; |
|
} |
|
|
|
static void f2fs_feature_list_kobj_release(struct kobject *kobj) |
|
{ |
|
struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info, |
|
s_feature_list_kobj); |
|
complete(&sbi->s_feature_list_kobj_unregister); |
|
} |
|
|
|
static const struct sysfs_ops f2fs_feature_list_attr_ops = { |
|
.show = f2fs_sb_feat_attr_show, |
|
}; |
|
|
|
static struct kobj_type f2fs_feature_list_ktype = { |
|
.default_groups = f2fs_sb_feat_groups, |
|
.sysfs_ops = &f2fs_feature_list_attr_ops, |
|
.release = f2fs_feature_list_kobj_release, |
|
}; |
|
|
|
static int __maybe_unused segment_info_seq_show(struct seq_file *seq, |
|
void *offset) |
|
{ |
|
struct super_block *sb = seq->private; |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
unsigned int total_segs = |
|
le32_to_cpu(sbi->raw_super->segment_count_main); |
|
int i; |
|
|
|
seq_puts(seq, "format: segment_type|valid_blocks\n" |
|
"segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n"); |
|
|
|
for (i = 0; i < total_segs; i++) { |
|
struct seg_entry *se = get_seg_entry(sbi, i); |
|
|
|
if ((i % 10) == 0) |
|
seq_printf(seq, "%-10d", i); |
|
seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks); |
|
if ((i % 10) == 9 || i == (total_segs - 1)) |
|
seq_putc(seq, '\n'); |
|
else |
|
seq_putc(seq, ' '); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int __maybe_unused segment_bits_seq_show(struct seq_file *seq, |
|
void *offset) |
|
{ |
|
struct super_block *sb = seq->private; |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
unsigned int total_segs = |
|
le32_to_cpu(sbi->raw_super->segment_count_main); |
|
int i, j; |
|
|
|
seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n" |
|
"segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n"); |
|
|
|
for (i = 0; i < total_segs; i++) { |
|
struct seg_entry *se = get_seg_entry(sbi, i); |
|
|
|
seq_printf(seq, "%-10d", i); |
|
seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks); |
|
for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++) |
|
seq_printf(seq, " %.2x", se->cur_valid_map[j]); |
|
seq_putc(seq, '\n'); |
|
} |
|
return 0; |
|
} |
|
|
|
static int __maybe_unused victim_bits_seq_show(struct seq_file *seq, |
|
void *offset) |
|
{ |
|
struct super_block *sb = seq->private; |
|
struct f2fs_sb_info *sbi = F2FS_SB(sb); |
|
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi); |
|
int i; |
|
|
|
seq_puts(seq, "format: victim_secmap bitmaps\n"); |
|
|
|
for (i = 0; i < MAIN_SECS(sbi); i++) { |
|
if ((i % 10) == 0) |
|
seq_printf(seq, "%-10d", i); |
|
seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0); |
|
if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1)) |
|
seq_putc(seq, '\n'); |
|
else |
|
seq_putc(seq, ' '); |
|
} |
|
return 0; |
|
} |
|
|
|
int __init f2fs_init_sysfs(void) |
|
{ |
|
int ret; |
|
|
|
kobject_set_name(&f2fs_kset.kobj, "f2fs"); |
|
f2fs_kset.kobj.parent = fs_kobj; |
|
ret = kset_register(&f2fs_kset); |
|
if (ret) |
|
return ret; |
|
|
|
ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype, |
|
NULL, "features"); |
|
if (ret) { |
|
kobject_put(&f2fs_feat); |
|
kset_unregister(&f2fs_kset); |
|
} else { |
|
f2fs_proc_root = proc_mkdir("fs/f2fs", NULL); |
|
} |
|
return ret; |
|
} |
|
|
|
void f2fs_exit_sysfs(void) |
|
{ |
|
kobject_put(&f2fs_feat); |
|
kset_unregister(&f2fs_kset); |
|
remove_proc_entry("fs/f2fs", NULL); |
|
f2fs_proc_root = NULL; |
|
} |
|
|
|
int f2fs_register_sysfs(struct f2fs_sb_info *sbi) |
|
{ |
|
struct super_block *sb = sbi->sb; |
|
int err; |
|
|
|
sbi->s_kobj.kset = &f2fs_kset; |
|
init_completion(&sbi->s_kobj_unregister); |
|
err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL, |
|
"%s", sb->s_id); |
|
if (err) |
|
goto put_sb_kobj; |
|
|
|
sbi->s_stat_kobj.kset = &f2fs_kset; |
|
init_completion(&sbi->s_stat_kobj_unregister); |
|
err = kobject_init_and_add(&sbi->s_stat_kobj, &f2fs_stat_ktype, |
|
&sbi->s_kobj, "stat"); |
|
if (err) |
|
goto put_stat_kobj; |
|
|
|
sbi->s_feature_list_kobj.kset = &f2fs_kset; |
|
init_completion(&sbi->s_feature_list_kobj_unregister); |
|
err = kobject_init_and_add(&sbi->s_feature_list_kobj, |
|
&f2fs_feature_list_ktype, |
|
&sbi->s_kobj, "feature_list"); |
|
if (err) |
|
goto put_feature_list_kobj; |
|
|
|
if (f2fs_proc_root) |
|
sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root); |
|
|
|
if (sbi->s_proc) { |
|
proc_create_single_data("segment_info", 0444, sbi->s_proc, |
|
segment_info_seq_show, sb); |
|
proc_create_single_data("segment_bits", 0444, sbi->s_proc, |
|
segment_bits_seq_show, sb); |
|
#ifdef CONFIG_F2FS_IOSTAT |
|
proc_create_single_data("iostat_info", 0444, sbi->s_proc, |
|
iostat_info_seq_show, sb); |
|
#endif |
|
proc_create_single_data("victim_bits", 0444, sbi->s_proc, |
|
victim_bits_seq_show, sb); |
|
} |
|
return 0; |
|
put_feature_list_kobj: |
|
kobject_put(&sbi->s_feature_list_kobj); |
|
wait_for_completion(&sbi->s_feature_list_kobj_unregister); |
|
put_stat_kobj: |
|
kobject_put(&sbi->s_stat_kobj); |
|
wait_for_completion(&sbi->s_stat_kobj_unregister); |
|
put_sb_kobj: |
|
kobject_put(&sbi->s_kobj); |
|
wait_for_completion(&sbi->s_kobj_unregister); |
|
return err; |
|
} |
|
|
|
void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi) |
|
{ |
|
if (sbi->s_proc) { |
|
#ifdef CONFIG_F2FS_IOSTAT |
|
remove_proc_entry("iostat_info", sbi->s_proc); |
|
#endif |
|
remove_proc_entry("segment_info", sbi->s_proc); |
|
remove_proc_entry("segment_bits", sbi->s_proc); |
|
remove_proc_entry("victim_bits", sbi->s_proc); |
|
remove_proc_entry(sbi->sb->s_id, f2fs_proc_root); |
|
} |
|
|
|
kobject_del(&sbi->s_stat_kobj); |
|
kobject_put(&sbi->s_stat_kobj); |
|
wait_for_completion(&sbi->s_stat_kobj_unregister); |
|
kobject_del(&sbi->s_feature_list_kobj); |
|
kobject_put(&sbi->s_feature_list_kobj); |
|
wait_for_completion(&sbi->s_feature_list_kobj_unregister); |
|
|
|
kobject_del(&sbi->s_kobj); |
|
kobject_put(&sbi->s_kobj); |
|
wait_for_completion(&sbi->s_kobj_unregister); |
|
}
|
|
|