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1345 lines
31 KiB
1345 lines
31 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
/* |
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* fs/f2fs/namei.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/fs.h> |
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#include <linux/f2fs_fs.h> |
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#include <linux/pagemap.h> |
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#include <linux/sched.h> |
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#include <linux/ctype.h> |
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#include <linux/random.h> |
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#include <linux/dcache.h> |
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#include <linux/namei.h> |
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#include <linux/quotaops.h> |
|
|
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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 "acl.h" |
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#include <trace/events/f2fs.h> |
|
|
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static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode) |
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{ |
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struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
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nid_t ino; |
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struct inode *inode; |
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bool nid_free = false; |
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bool encrypt = false; |
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int xattr_size = 0; |
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int err; |
|
|
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inode = new_inode(dir->i_sb); |
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if (!inode) |
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return ERR_PTR(-ENOMEM); |
|
|
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f2fs_lock_op(sbi); |
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if (!f2fs_alloc_nid(sbi, &ino)) { |
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f2fs_unlock_op(sbi); |
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err = -ENOSPC; |
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goto fail; |
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} |
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f2fs_unlock_op(sbi); |
|
|
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nid_free = true; |
|
|
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inode_init_owner(&init_user_ns, inode, dir, mode); |
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|
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inode->i_ino = ino; |
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inode->i_blocks = 0; |
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inode->i_mtime = inode->i_atime = inode->i_ctime = current_time(inode); |
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F2FS_I(inode)->i_crtime = inode->i_mtime; |
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inode->i_generation = prandom_u32(); |
|
|
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if (S_ISDIR(inode->i_mode)) |
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F2FS_I(inode)->i_current_depth = 1; |
|
|
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err = insert_inode_locked(inode); |
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if (err) { |
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err = -EINVAL; |
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goto fail; |
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} |
|
|
|
if (f2fs_sb_has_project_quota(sbi) && |
|
(F2FS_I(dir)->i_flags & F2FS_PROJINHERIT_FL)) |
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F2FS_I(inode)->i_projid = F2FS_I(dir)->i_projid; |
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else |
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F2FS_I(inode)->i_projid = make_kprojid(&init_user_ns, |
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F2FS_DEF_PROJID); |
|
|
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err = fscrypt_prepare_new_inode(dir, inode, &encrypt); |
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if (err) |
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goto fail_drop; |
|
|
|
err = dquot_initialize(inode); |
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if (err) |
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goto fail_drop; |
|
|
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set_inode_flag(inode, FI_NEW_INODE); |
|
|
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if (encrypt) |
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f2fs_set_encrypted_inode(inode); |
|
|
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if (f2fs_sb_has_extra_attr(sbi)) { |
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set_inode_flag(inode, FI_EXTRA_ATTR); |
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F2FS_I(inode)->i_extra_isize = F2FS_TOTAL_EXTRA_ATTR_SIZE; |
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} |
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|
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if (test_opt(sbi, INLINE_XATTR)) |
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set_inode_flag(inode, FI_INLINE_XATTR); |
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|
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if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode)) |
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set_inode_flag(inode, FI_INLINE_DATA); |
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if (f2fs_may_inline_dentry(inode)) |
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set_inode_flag(inode, FI_INLINE_DENTRY); |
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|
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if (f2fs_sb_has_flexible_inline_xattr(sbi)) { |
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f2fs_bug_on(sbi, !f2fs_has_extra_attr(inode)); |
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if (f2fs_has_inline_xattr(inode)) |
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xattr_size = F2FS_OPTION(sbi).inline_xattr_size; |
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/* Otherwise, will be 0 */ |
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} else if (f2fs_has_inline_xattr(inode) || |
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f2fs_has_inline_dentry(inode)) { |
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xattr_size = DEFAULT_INLINE_XATTR_ADDRS; |
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} |
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F2FS_I(inode)->i_inline_xattr_size = xattr_size; |
|
|
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f2fs_init_extent_tree(inode, NULL); |
|
|
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stat_inc_inline_xattr(inode); |
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stat_inc_inline_inode(inode); |
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stat_inc_inline_dir(inode); |
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|
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F2FS_I(inode)->i_flags = |
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f2fs_mask_flags(mode, F2FS_I(dir)->i_flags & F2FS_FL_INHERITED); |
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|
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if (S_ISDIR(inode->i_mode)) |
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F2FS_I(inode)->i_flags |= F2FS_INDEX_FL; |
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|
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if (F2FS_I(inode)->i_flags & F2FS_PROJINHERIT_FL) |
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set_inode_flag(inode, FI_PROJ_INHERIT); |
|
|
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if (f2fs_sb_has_compression(sbi)) { |
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/* Inherit the compression flag in directory */ |
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if ((F2FS_I(dir)->i_flags & F2FS_COMPR_FL) && |
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f2fs_may_compress(inode)) |
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set_compress_context(inode); |
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} |
|
|
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f2fs_set_inode_flags(inode); |
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|
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trace_f2fs_new_inode(inode, 0); |
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return inode; |
|
|
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fail: |
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trace_f2fs_new_inode(inode, err); |
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make_bad_inode(inode); |
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if (nid_free) |
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set_inode_flag(inode, FI_FREE_NID); |
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iput(inode); |
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return ERR_PTR(err); |
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fail_drop: |
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trace_f2fs_new_inode(inode, err); |
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dquot_drop(inode); |
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inode->i_flags |= S_NOQUOTA; |
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if (nid_free) |
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set_inode_flag(inode, FI_FREE_NID); |
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clear_nlink(inode); |
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unlock_new_inode(inode); |
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iput(inode); |
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return ERR_PTR(err); |
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} |
|
|
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static inline int is_extension_exist(const unsigned char *s, const char *sub) |
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{ |
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size_t slen = strlen(s); |
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size_t sublen = strlen(sub); |
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int i; |
|
|
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if (sublen == 1 && *sub == '*') |
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return 1; |
|
|
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/* |
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* filename format of multimedia file should be defined as: |
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* "filename + '.' + extension + (optional: '.' + temp extension)". |
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*/ |
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if (slen < sublen + 2) |
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return 0; |
|
|
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for (i = 1; i < slen - sublen; i++) { |
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if (s[i] != '.') |
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continue; |
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if (!strncasecmp(s + i + 1, sub, sublen)) |
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return 1; |
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} |
|
|
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return 0; |
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} |
|
|
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/* |
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* Set file's temperature for hot/cold data separation |
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*/ |
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static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode, |
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const unsigned char *name) |
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{ |
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__u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; |
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int i, cold_count, hot_count; |
|
|
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down_read(&sbi->sb_lock); |
|
|
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cold_count = le32_to_cpu(sbi->raw_super->extension_count); |
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hot_count = sbi->raw_super->hot_ext_count; |
|
|
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for (i = 0; i < cold_count + hot_count; i++) { |
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if (is_extension_exist(name, extlist[i])) |
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break; |
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} |
|
|
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up_read(&sbi->sb_lock); |
|
|
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if (i == cold_count + hot_count) |
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return; |
|
|
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if (i < cold_count) |
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file_set_cold(inode); |
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else |
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file_set_hot(inode); |
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} |
|
|
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int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name, |
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bool hot, bool set) |
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{ |
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__u8 (*extlist)[F2FS_EXTENSION_LEN] = 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 total_count = cold_count + hot_count; |
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int start, count; |
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int i; |
|
|
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if (set) { |
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if (total_count == F2FS_MAX_EXTENSION) |
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return -EINVAL; |
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} else { |
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if (!hot && !cold_count) |
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return -EINVAL; |
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if (hot && !hot_count) |
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return -EINVAL; |
|
} |
|
|
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if (hot) { |
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start = cold_count; |
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count = total_count; |
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} else { |
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start = 0; |
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count = cold_count; |
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} |
|
|
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for (i = start; i < count; i++) { |
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if (strcmp(name, extlist[i])) |
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continue; |
|
|
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if (set) |
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return -EINVAL; |
|
|
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memcpy(extlist[i], extlist[i + 1], |
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F2FS_EXTENSION_LEN * (total_count - i - 1)); |
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memset(extlist[total_count - 1], 0, F2FS_EXTENSION_LEN); |
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if (hot) |
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sbi->raw_super->hot_ext_count = hot_count - 1; |
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else |
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sbi->raw_super->extension_count = |
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cpu_to_le32(cold_count - 1); |
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return 0; |
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} |
|
|
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if (!set) |
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return -EINVAL; |
|
|
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if (hot) { |
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memcpy(extlist[count], name, strlen(name)); |
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sbi->raw_super->hot_ext_count = hot_count + 1; |
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} else { |
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char buf[F2FS_MAX_EXTENSION][F2FS_EXTENSION_LEN]; |
|
|
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memcpy(buf, &extlist[cold_count], |
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F2FS_EXTENSION_LEN * hot_count); |
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memset(extlist[cold_count], 0, F2FS_EXTENSION_LEN); |
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memcpy(extlist[cold_count], name, strlen(name)); |
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memcpy(&extlist[cold_count + 1], buf, |
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F2FS_EXTENSION_LEN * hot_count); |
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sbi->raw_super->extension_count = cpu_to_le32(cold_count + 1); |
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} |
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return 0; |
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} |
|
|
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static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode, |
|
const unsigned char *name) |
|
{ |
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__u8 (*extlist)[F2FS_EXTENSION_LEN] = sbi->raw_super->extension_list; |
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unsigned char (*ext)[F2FS_EXTENSION_LEN]; |
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unsigned int ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt; |
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int i, cold_count, hot_count; |
|
|
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if (!f2fs_sb_has_compression(sbi) || |
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is_inode_flag_set(inode, FI_COMPRESSED_FILE) || |
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F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL || |
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!f2fs_may_compress(inode)) |
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return; |
|
|
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down_read(&sbi->sb_lock); |
|
|
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cold_count = le32_to_cpu(sbi->raw_super->extension_count); |
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hot_count = sbi->raw_super->hot_ext_count; |
|
|
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for (i = cold_count; i < cold_count + hot_count; i++) { |
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if (is_extension_exist(name, extlist[i])) { |
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up_read(&sbi->sb_lock); |
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return; |
|
} |
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} |
|
|
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up_read(&sbi->sb_lock); |
|
|
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ext = F2FS_OPTION(sbi).extensions; |
|
|
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for (i = 0; i < ext_cnt; i++) { |
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if (!is_extension_exist(name, ext[i])) |
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continue; |
|
|
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set_compress_context(inode); |
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return; |
|
} |
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} |
|
|
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static int f2fs_create(struct user_namespace *mnt_userns, struct inode *dir, |
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struct dentry *dentry, umode_t mode, bool excl) |
|
{ |
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struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
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struct inode *inode; |
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nid_t ino = 0; |
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int err; |
|
|
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if (unlikely(f2fs_cp_error(sbi))) |
|
return -EIO; |
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if (!f2fs_is_checkpoint_ready(sbi)) |
|
return -ENOSPC; |
|
|
|
err = dquot_initialize(dir); |
|
if (err) |
|
return err; |
|
|
|
inode = f2fs_new_inode(dir, mode); |
|
if (IS_ERR(inode)) |
|
return PTR_ERR(inode); |
|
|
|
if (!test_opt(sbi, DISABLE_EXT_IDENTIFY)) |
|
set_file_temperature(sbi, inode, dentry->d_name.name); |
|
|
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set_compress_inode(sbi, inode, dentry->d_name.name); |
|
|
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inode->i_op = &f2fs_file_inode_operations; |
|
inode->i_fop = &f2fs_file_operations; |
|
inode->i_mapping->a_ops = &f2fs_dblock_aops; |
|
ino = inode->i_ino; |
|
|
|
f2fs_lock_op(sbi); |
|
err = f2fs_add_link(dentry, inode); |
|
if (err) |
|
goto out; |
|
f2fs_unlock_op(sbi); |
|
|
|
f2fs_alloc_nid_done(sbi, ino); |
|
|
|
d_instantiate_new(dentry, inode); |
|
|
|
if (IS_DIRSYNC(dir)) |
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f2fs_sync_fs(sbi->sb, 1); |
|
|
|
f2fs_balance_fs(sbi, true); |
|
return 0; |
|
out: |
|
f2fs_handle_failed_inode(inode); |
|
return err; |
|
} |
|
|
|
static int f2fs_link(struct dentry *old_dentry, struct inode *dir, |
|
struct dentry *dentry) |
|
{ |
|
struct inode *inode = d_inode(old_dentry); |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
|
int err; |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) |
|
return -EIO; |
|
if (!f2fs_is_checkpoint_ready(sbi)) |
|
return -ENOSPC; |
|
|
|
err = fscrypt_prepare_link(old_dentry, dir, dentry); |
|
if (err) |
|
return err; |
|
|
|
if (is_inode_flag_set(dir, FI_PROJ_INHERIT) && |
|
(!projid_eq(F2FS_I(dir)->i_projid, |
|
F2FS_I(old_dentry->d_inode)->i_projid))) |
|
return -EXDEV; |
|
|
|
err = dquot_initialize(dir); |
|
if (err) |
|
return err; |
|
|
|
f2fs_balance_fs(sbi, true); |
|
|
|
inode->i_ctime = current_time(inode); |
|
ihold(inode); |
|
|
|
set_inode_flag(inode, FI_INC_LINK); |
|
f2fs_lock_op(sbi); |
|
err = f2fs_add_link(dentry, inode); |
|
if (err) |
|
goto out; |
|
f2fs_unlock_op(sbi); |
|
|
|
d_instantiate(dentry, inode); |
|
|
|
if (IS_DIRSYNC(dir)) |
|
f2fs_sync_fs(sbi->sb, 1); |
|
return 0; |
|
out: |
|
clear_inode_flag(inode, FI_INC_LINK); |
|
iput(inode); |
|
f2fs_unlock_op(sbi); |
|
return err; |
|
} |
|
|
|
struct dentry *f2fs_get_parent(struct dentry *child) |
|
{ |
|
struct qstr dotdot = QSTR_INIT("..", 2); |
|
struct page *page; |
|
unsigned long ino = f2fs_inode_by_name(d_inode(child), &dotdot, &page); |
|
if (!ino) { |
|
if (IS_ERR(page)) |
|
return ERR_CAST(page); |
|
return ERR_PTR(-ENOENT); |
|
} |
|
return d_obtain_alias(f2fs_iget(child->d_sb, ino)); |
|
} |
|
|
|
static int __recover_dot_dentries(struct inode *dir, nid_t pino) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
|
struct qstr dot = QSTR_INIT(".", 1); |
|
struct qstr dotdot = QSTR_INIT("..", 2); |
|
struct f2fs_dir_entry *de; |
|
struct page *page; |
|
int err = 0; |
|
|
|
if (f2fs_readonly(sbi->sb)) { |
|
f2fs_info(sbi, "skip recovering inline_dots inode (ino:%lu, pino:%u) in readonly mountpoint", |
|
dir->i_ino, pino); |
|
return 0; |
|
} |
|
|
|
err = dquot_initialize(dir); |
|
if (err) |
|
return err; |
|
|
|
f2fs_balance_fs(sbi, true); |
|
|
|
f2fs_lock_op(sbi); |
|
|
|
de = f2fs_find_entry(dir, &dot, &page); |
|
if (de) { |
|
f2fs_put_page(page, 0); |
|
} else if (IS_ERR(page)) { |
|
err = PTR_ERR(page); |
|
goto out; |
|
} else { |
|
err = f2fs_do_add_link(dir, &dot, NULL, dir->i_ino, S_IFDIR); |
|
if (err) |
|
goto out; |
|
} |
|
|
|
de = f2fs_find_entry(dir, &dotdot, &page); |
|
if (de) |
|
f2fs_put_page(page, 0); |
|
else if (IS_ERR(page)) |
|
err = PTR_ERR(page); |
|
else |
|
err = f2fs_do_add_link(dir, &dotdot, NULL, pino, S_IFDIR); |
|
out: |
|
if (!err) |
|
clear_inode_flag(dir, FI_INLINE_DOTS); |
|
|
|
f2fs_unlock_op(sbi); |
|
return err; |
|
} |
|
|
|
static struct dentry *f2fs_lookup(struct inode *dir, struct dentry *dentry, |
|
unsigned int flags) |
|
{ |
|
struct inode *inode = NULL; |
|
struct f2fs_dir_entry *de; |
|
struct page *page; |
|
struct dentry *new; |
|
nid_t ino = -1; |
|
int err = 0; |
|
unsigned int root_ino = F2FS_ROOT_INO(F2FS_I_SB(dir)); |
|
struct f2fs_filename fname; |
|
|
|
trace_f2fs_lookup_start(dir, dentry, flags); |
|
|
|
if (dentry->d_name.len > F2FS_NAME_LEN) { |
|
err = -ENAMETOOLONG; |
|
goto out; |
|
} |
|
|
|
err = f2fs_prepare_lookup(dir, dentry, &fname); |
|
generic_set_encrypted_ci_d_ops(dentry); |
|
if (err == -ENOENT) |
|
goto out_splice; |
|
if (err) |
|
goto out; |
|
de = __f2fs_find_entry(dir, &fname, &page); |
|
f2fs_free_filename(&fname); |
|
|
|
if (!de) { |
|
if (IS_ERR(page)) { |
|
err = PTR_ERR(page); |
|
goto out; |
|
} |
|
err = -ENOENT; |
|
goto out_splice; |
|
} |
|
|
|
ino = le32_to_cpu(de->ino); |
|
f2fs_put_page(page, 0); |
|
|
|
inode = f2fs_iget(dir->i_sb, ino); |
|
if (IS_ERR(inode)) { |
|
err = PTR_ERR(inode); |
|
goto out; |
|
} |
|
|
|
if ((dir->i_ino == root_ino) && f2fs_has_inline_dots(dir)) { |
|
err = __recover_dot_dentries(dir, root_ino); |
|
if (err) |
|
goto out_iput; |
|
} |
|
|
|
if (f2fs_has_inline_dots(inode)) { |
|
err = __recover_dot_dentries(inode, dir->i_ino); |
|
if (err) |
|
goto out_iput; |
|
} |
|
if (IS_ENCRYPTED(dir) && |
|
(S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) && |
|
!fscrypt_has_permitted_context(dir, inode)) { |
|
f2fs_warn(F2FS_I_SB(inode), "Inconsistent encryption contexts: %lu/%lu", |
|
dir->i_ino, inode->i_ino); |
|
err = -EPERM; |
|
goto out_iput; |
|
} |
|
out_splice: |
|
#ifdef CONFIG_UNICODE |
|
if (!inode && IS_CASEFOLDED(dir)) { |
|
/* Eventually we want to call d_add_ci(dentry, NULL) |
|
* for negative dentries in the encoding case as |
|
* well. For now, prevent the negative dentry |
|
* from being cached. |
|
*/ |
|
trace_f2fs_lookup_end(dir, dentry, ino, err); |
|
return NULL; |
|
} |
|
#endif |
|
new = d_splice_alias(inode, dentry); |
|
err = PTR_ERR_OR_ZERO(new); |
|
trace_f2fs_lookup_end(dir, dentry, ino, !new ? -ENOENT : err); |
|
return new; |
|
out_iput: |
|
iput(inode); |
|
out: |
|
trace_f2fs_lookup_end(dir, dentry, ino, err); |
|
return ERR_PTR(err); |
|
} |
|
|
|
static int f2fs_unlink(struct inode *dir, struct dentry *dentry) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
|
struct inode *inode = d_inode(dentry); |
|
struct f2fs_dir_entry *de; |
|
struct page *page; |
|
int err; |
|
|
|
trace_f2fs_unlink_enter(dir, dentry); |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) { |
|
err = -EIO; |
|
goto fail; |
|
} |
|
|
|
err = dquot_initialize(dir); |
|
if (err) |
|
goto fail; |
|
err = dquot_initialize(inode); |
|
if (err) |
|
goto fail; |
|
|
|
de = f2fs_find_entry(dir, &dentry->d_name, &page); |
|
if (!de) { |
|
if (IS_ERR(page)) |
|
err = PTR_ERR(page); |
|
goto fail; |
|
} |
|
|
|
f2fs_balance_fs(sbi, true); |
|
|
|
f2fs_lock_op(sbi); |
|
err = f2fs_acquire_orphan_inode(sbi); |
|
if (err) { |
|
f2fs_unlock_op(sbi); |
|
f2fs_put_page(page, 0); |
|
goto fail; |
|
} |
|
f2fs_delete_entry(de, page, dir, inode); |
|
#ifdef CONFIG_UNICODE |
|
/* VFS negative dentries are incompatible with Encoding and |
|
* Case-insensitiveness. Eventually we'll want avoid |
|
* invalidating the dentries here, alongside with returning the |
|
* negative dentries at f2fs_lookup(), when it is better |
|
* supported by the VFS for the CI case. |
|
*/ |
|
if (IS_CASEFOLDED(dir)) |
|
d_invalidate(dentry); |
|
#endif |
|
f2fs_unlock_op(sbi); |
|
|
|
if (IS_DIRSYNC(dir)) |
|
f2fs_sync_fs(sbi->sb, 1); |
|
fail: |
|
trace_f2fs_unlink_exit(inode, err); |
|
return err; |
|
} |
|
|
|
static const char *f2fs_get_link(struct dentry *dentry, |
|
struct inode *inode, |
|
struct delayed_call *done) |
|
{ |
|
const char *link = page_get_link(dentry, inode, done); |
|
if (!IS_ERR(link) && !*link) { |
|
/* this is broken symlink case */ |
|
do_delayed_call(done); |
|
clear_delayed_call(done); |
|
link = ERR_PTR(-ENOENT); |
|
} |
|
return link; |
|
} |
|
|
|
static int f2fs_symlink(struct user_namespace *mnt_userns, struct inode *dir, |
|
struct dentry *dentry, const char *symname) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
|
struct inode *inode; |
|
size_t len = strlen(symname); |
|
struct fscrypt_str disk_link; |
|
int err; |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) |
|
return -EIO; |
|
if (!f2fs_is_checkpoint_ready(sbi)) |
|
return -ENOSPC; |
|
|
|
err = fscrypt_prepare_symlink(dir, symname, len, dir->i_sb->s_blocksize, |
|
&disk_link); |
|
if (err) |
|
return err; |
|
|
|
err = dquot_initialize(dir); |
|
if (err) |
|
return err; |
|
|
|
inode = f2fs_new_inode(dir, S_IFLNK | S_IRWXUGO); |
|
if (IS_ERR(inode)) |
|
return PTR_ERR(inode); |
|
|
|
if (IS_ENCRYPTED(inode)) |
|
inode->i_op = &f2fs_encrypted_symlink_inode_operations; |
|
else |
|
inode->i_op = &f2fs_symlink_inode_operations; |
|
inode_nohighmem(inode); |
|
inode->i_mapping->a_ops = &f2fs_dblock_aops; |
|
|
|
f2fs_lock_op(sbi); |
|
err = f2fs_add_link(dentry, inode); |
|
if (err) |
|
goto out_f2fs_handle_failed_inode; |
|
f2fs_unlock_op(sbi); |
|
f2fs_alloc_nid_done(sbi, inode->i_ino); |
|
|
|
err = fscrypt_encrypt_symlink(inode, symname, len, &disk_link); |
|
if (err) |
|
goto err_out; |
|
|
|
err = page_symlink(inode, disk_link.name, disk_link.len); |
|
|
|
err_out: |
|
d_instantiate_new(dentry, inode); |
|
|
|
/* |
|
* Let's flush symlink data in order to avoid broken symlink as much as |
|
* possible. Nevertheless, fsyncing is the best way, but there is no |
|
* way to get a file descriptor in order to flush that. |
|
* |
|
* Note that, it needs to do dir->fsync to make this recoverable. |
|
* If the symlink path is stored into inline_data, there is no |
|
* performance regression. |
|
*/ |
|
if (!err) { |
|
filemap_write_and_wait_range(inode->i_mapping, 0, |
|
disk_link.len - 1); |
|
|
|
if (IS_DIRSYNC(dir)) |
|
f2fs_sync_fs(sbi->sb, 1); |
|
} else { |
|
f2fs_unlink(dir, dentry); |
|
} |
|
|
|
f2fs_balance_fs(sbi, true); |
|
goto out_free_encrypted_link; |
|
|
|
out_f2fs_handle_failed_inode: |
|
f2fs_handle_failed_inode(inode); |
|
out_free_encrypted_link: |
|
if (disk_link.name != (unsigned char *)symname) |
|
kfree(disk_link.name); |
|
return err; |
|
} |
|
|
|
static int f2fs_mkdir(struct user_namespace *mnt_userns, struct inode *dir, |
|
struct dentry *dentry, umode_t mode) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
|
struct inode *inode; |
|
int err; |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) |
|
return -EIO; |
|
|
|
err = dquot_initialize(dir); |
|
if (err) |
|
return err; |
|
|
|
inode = f2fs_new_inode(dir, S_IFDIR | mode); |
|
if (IS_ERR(inode)) |
|
return PTR_ERR(inode); |
|
|
|
inode->i_op = &f2fs_dir_inode_operations; |
|
inode->i_fop = &f2fs_dir_operations; |
|
inode->i_mapping->a_ops = &f2fs_dblock_aops; |
|
inode_nohighmem(inode); |
|
|
|
set_inode_flag(inode, FI_INC_LINK); |
|
f2fs_lock_op(sbi); |
|
err = f2fs_add_link(dentry, inode); |
|
if (err) |
|
goto out_fail; |
|
f2fs_unlock_op(sbi); |
|
|
|
f2fs_alloc_nid_done(sbi, inode->i_ino); |
|
|
|
d_instantiate_new(dentry, inode); |
|
|
|
if (IS_DIRSYNC(dir)) |
|
f2fs_sync_fs(sbi->sb, 1); |
|
|
|
f2fs_balance_fs(sbi, true); |
|
return 0; |
|
|
|
out_fail: |
|
clear_inode_flag(inode, FI_INC_LINK); |
|
f2fs_handle_failed_inode(inode); |
|
return err; |
|
} |
|
|
|
static int f2fs_rmdir(struct inode *dir, struct dentry *dentry) |
|
{ |
|
struct inode *inode = d_inode(dentry); |
|
if (f2fs_empty_dir(inode)) |
|
return f2fs_unlink(dir, dentry); |
|
return -ENOTEMPTY; |
|
} |
|
|
|
static int f2fs_mknod(struct user_namespace *mnt_userns, struct inode *dir, |
|
struct dentry *dentry, umode_t mode, dev_t rdev) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
|
struct inode *inode; |
|
int err = 0; |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) |
|
return -EIO; |
|
if (!f2fs_is_checkpoint_ready(sbi)) |
|
return -ENOSPC; |
|
|
|
err = dquot_initialize(dir); |
|
if (err) |
|
return err; |
|
|
|
inode = f2fs_new_inode(dir, mode); |
|
if (IS_ERR(inode)) |
|
return PTR_ERR(inode); |
|
|
|
init_special_inode(inode, inode->i_mode, rdev); |
|
inode->i_op = &f2fs_special_inode_operations; |
|
|
|
f2fs_lock_op(sbi); |
|
err = f2fs_add_link(dentry, inode); |
|
if (err) |
|
goto out; |
|
f2fs_unlock_op(sbi); |
|
|
|
f2fs_alloc_nid_done(sbi, inode->i_ino); |
|
|
|
d_instantiate_new(dentry, inode); |
|
|
|
if (IS_DIRSYNC(dir)) |
|
f2fs_sync_fs(sbi->sb, 1); |
|
|
|
f2fs_balance_fs(sbi, true); |
|
return 0; |
|
out: |
|
f2fs_handle_failed_inode(inode); |
|
return err; |
|
} |
|
|
|
static int __f2fs_tmpfile(struct inode *dir, struct dentry *dentry, |
|
umode_t mode, struct inode **whiteout) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
|
struct inode *inode; |
|
int err; |
|
|
|
err = dquot_initialize(dir); |
|
if (err) |
|
return err; |
|
|
|
inode = f2fs_new_inode(dir, mode); |
|
if (IS_ERR(inode)) |
|
return PTR_ERR(inode); |
|
|
|
if (whiteout) { |
|
init_special_inode(inode, inode->i_mode, WHITEOUT_DEV); |
|
inode->i_op = &f2fs_special_inode_operations; |
|
} else { |
|
inode->i_op = &f2fs_file_inode_operations; |
|
inode->i_fop = &f2fs_file_operations; |
|
inode->i_mapping->a_ops = &f2fs_dblock_aops; |
|
} |
|
|
|
f2fs_lock_op(sbi); |
|
err = f2fs_acquire_orphan_inode(sbi); |
|
if (err) |
|
goto out; |
|
|
|
err = f2fs_do_tmpfile(inode, dir); |
|
if (err) |
|
goto release_out; |
|
|
|
/* |
|
* add this non-linked tmpfile to orphan list, in this way we could |
|
* remove all unused data of tmpfile after abnormal power-off. |
|
*/ |
|
f2fs_add_orphan_inode(inode); |
|
f2fs_alloc_nid_done(sbi, inode->i_ino); |
|
|
|
if (whiteout) { |
|
f2fs_i_links_write(inode, false); |
|
|
|
spin_lock(&inode->i_lock); |
|
inode->i_state |= I_LINKABLE; |
|
spin_unlock(&inode->i_lock); |
|
|
|
*whiteout = inode; |
|
} else { |
|
d_tmpfile(dentry, inode); |
|
} |
|
/* link_count was changed by d_tmpfile as well. */ |
|
f2fs_unlock_op(sbi); |
|
unlock_new_inode(inode); |
|
|
|
f2fs_balance_fs(sbi, true); |
|
return 0; |
|
|
|
release_out: |
|
f2fs_release_orphan_inode(sbi); |
|
out: |
|
f2fs_handle_failed_inode(inode); |
|
return err; |
|
} |
|
|
|
static int f2fs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir, |
|
struct dentry *dentry, umode_t mode) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(dir); |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) |
|
return -EIO; |
|
if (!f2fs_is_checkpoint_ready(sbi)) |
|
return -ENOSPC; |
|
|
|
return __f2fs_tmpfile(dir, dentry, mode, NULL); |
|
} |
|
|
|
static int f2fs_create_whiteout(struct inode *dir, struct inode **whiteout) |
|
{ |
|
if (unlikely(f2fs_cp_error(F2FS_I_SB(dir)))) |
|
return -EIO; |
|
|
|
return __f2fs_tmpfile(dir, NULL, S_IFCHR | WHITEOUT_MODE, whiteout); |
|
} |
|
|
|
static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry, |
|
struct inode *new_dir, struct dentry *new_dentry, |
|
unsigned int flags) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); |
|
struct inode *old_inode = d_inode(old_dentry); |
|
struct inode *new_inode = d_inode(new_dentry); |
|
struct inode *whiteout = NULL; |
|
struct page *old_dir_page = NULL; |
|
struct page *old_page, *new_page = NULL; |
|
struct f2fs_dir_entry *old_dir_entry = NULL; |
|
struct f2fs_dir_entry *old_entry; |
|
struct f2fs_dir_entry *new_entry; |
|
int err; |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) |
|
return -EIO; |
|
if (!f2fs_is_checkpoint_ready(sbi)) |
|
return -ENOSPC; |
|
|
|
if (is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && |
|
(!projid_eq(F2FS_I(new_dir)->i_projid, |
|
F2FS_I(old_dentry->d_inode)->i_projid))) |
|
return -EXDEV; |
|
|
|
/* |
|
* If new_inode is null, the below renaming flow will |
|
* add a link in old_dir which can conver inline_dir. |
|
* After then, if we failed to get the entry due to other |
|
* reasons like ENOMEM, we had to remove the new entry. |
|
* Instead of adding such the error handling routine, let's |
|
* simply convert first here. |
|
*/ |
|
if (old_dir == new_dir && !new_inode) { |
|
err = f2fs_try_convert_inline_dir(old_dir, new_dentry); |
|
if (err) |
|
return err; |
|
} |
|
|
|
if (flags & RENAME_WHITEOUT) { |
|
err = f2fs_create_whiteout(old_dir, &whiteout); |
|
if (err) |
|
return err; |
|
} |
|
|
|
err = dquot_initialize(old_dir); |
|
if (err) |
|
goto out; |
|
|
|
err = dquot_initialize(new_dir); |
|
if (err) |
|
goto out; |
|
|
|
if (new_inode) { |
|
err = dquot_initialize(new_inode); |
|
if (err) |
|
goto out; |
|
} |
|
|
|
err = -ENOENT; |
|
old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); |
|
if (!old_entry) { |
|
if (IS_ERR(old_page)) |
|
err = PTR_ERR(old_page); |
|
goto out; |
|
} |
|
|
|
if (S_ISDIR(old_inode->i_mode)) { |
|
old_dir_entry = f2fs_parent_dir(old_inode, &old_dir_page); |
|
if (!old_dir_entry) { |
|
if (IS_ERR(old_dir_page)) |
|
err = PTR_ERR(old_dir_page); |
|
goto out_old; |
|
} |
|
} |
|
|
|
if (new_inode) { |
|
|
|
err = -ENOTEMPTY; |
|
if (old_dir_entry && !f2fs_empty_dir(new_inode)) |
|
goto out_dir; |
|
|
|
err = -ENOENT; |
|
new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, |
|
&new_page); |
|
if (!new_entry) { |
|
if (IS_ERR(new_page)) |
|
err = PTR_ERR(new_page); |
|
goto out_dir; |
|
} |
|
|
|
f2fs_balance_fs(sbi, true); |
|
|
|
f2fs_lock_op(sbi); |
|
|
|
err = f2fs_acquire_orphan_inode(sbi); |
|
if (err) |
|
goto put_out_dir; |
|
|
|
f2fs_set_link(new_dir, new_entry, new_page, old_inode); |
|
new_page = NULL; |
|
|
|
new_inode->i_ctime = current_time(new_inode); |
|
down_write(&F2FS_I(new_inode)->i_sem); |
|
if (old_dir_entry) |
|
f2fs_i_links_write(new_inode, false); |
|
f2fs_i_links_write(new_inode, false); |
|
up_write(&F2FS_I(new_inode)->i_sem); |
|
|
|
if (!new_inode->i_nlink) |
|
f2fs_add_orphan_inode(new_inode); |
|
else |
|
f2fs_release_orphan_inode(sbi); |
|
} else { |
|
f2fs_balance_fs(sbi, true); |
|
|
|
f2fs_lock_op(sbi); |
|
|
|
err = f2fs_add_link(new_dentry, old_inode); |
|
if (err) { |
|
f2fs_unlock_op(sbi); |
|
goto out_dir; |
|
} |
|
|
|
if (old_dir_entry) |
|
f2fs_i_links_write(new_dir, true); |
|
} |
|
|
|
down_write(&F2FS_I(old_inode)->i_sem); |
|
if (!old_dir_entry || whiteout) |
|
file_lost_pino(old_inode); |
|
else |
|
/* adjust dir's i_pino to pass fsck check */ |
|
f2fs_i_pino_write(old_inode, new_dir->i_ino); |
|
up_write(&F2FS_I(old_inode)->i_sem); |
|
|
|
old_inode->i_ctime = current_time(old_inode); |
|
f2fs_mark_inode_dirty_sync(old_inode, false); |
|
|
|
f2fs_delete_entry(old_entry, old_page, old_dir, NULL); |
|
old_page = NULL; |
|
|
|
if (whiteout) { |
|
set_inode_flag(whiteout, FI_INC_LINK); |
|
err = f2fs_add_link(old_dentry, whiteout); |
|
if (err) |
|
goto put_out_dir; |
|
|
|
spin_lock(&whiteout->i_lock); |
|
whiteout->i_state &= ~I_LINKABLE; |
|
spin_unlock(&whiteout->i_lock); |
|
|
|
iput(whiteout); |
|
} |
|
|
|
if (old_dir_entry) { |
|
if (old_dir != new_dir && !whiteout) |
|
f2fs_set_link(old_inode, old_dir_entry, |
|
old_dir_page, new_dir); |
|
else |
|
f2fs_put_page(old_dir_page, 0); |
|
f2fs_i_links_write(old_dir, false); |
|
} |
|
if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { |
|
f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); |
|
if (S_ISDIR(old_inode->i_mode)) |
|
f2fs_add_ino_entry(sbi, old_inode->i_ino, |
|
TRANS_DIR_INO); |
|
} |
|
|
|
f2fs_unlock_op(sbi); |
|
|
|
if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) |
|
f2fs_sync_fs(sbi->sb, 1); |
|
|
|
f2fs_update_time(sbi, REQ_TIME); |
|
return 0; |
|
|
|
put_out_dir: |
|
f2fs_unlock_op(sbi); |
|
f2fs_put_page(new_page, 0); |
|
out_dir: |
|
if (old_dir_entry) |
|
f2fs_put_page(old_dir_page, 0); |
|
out_old: |
|
f2fs_put_page(old_page, 0); |
|
out: |
|
if (whiteout) |
|
iput(whiteout); |
|
return err; |
|
} |
|
|
|
static int f2fs_cross_rename(struct inode *old_dir, struct dentry *old_dentry, |
|
struct inode *new_dir, struct dentry *new_dentry) |
|
{ |
|
struct f2fs_sb_info *sbi = F2FS_I_SB(old_dir); |
|
struct inode *old_inode = d_inode(old_dentry); |
|
struct inode *new_inode = d_inode(new_dentry); |
|
struct page *old_dir_page, *new_dir_page; |
|
struct page *old_page, *new_page; |
|
struct f2fs_dir_entry *old_dir_entry = NULL, *new_dir_entry = NULL; |
|
struct f2fs_dir_entry *old_entry, *new_entry; |
|
int old_nlink = 0, new_nlink = 0; |
|
int err; |
|
|
|
if (unlikely(f2fs_cp_error(sbi))) |
|
return -EIO; |
|
if (!f2fs_is_checkpoint_ready(sbi)) |
|
return -ENOSPC; |
|
|
|
if ((is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && |
|
!projid_eq(F2FS_I(new_dir)->i_projid, |
|
F2FS_I(old_dentry->d_inode)->i_projid)) || |
|
(is_inode_flag_set(new_dir, FI_PROJ_INHERIT) && |
|
!projid_eq(F2FS_I(old_dir)->i_projid, |
|
F2FS_I(new_dentry->d_inode)->i_projid))) |
|
return -EXDEV; |
|
|
|
err = dquot_initialize(old_dir); |
|
if (err) |
|
goto out; |
|
|
|
err = dquot_initialize(new_dir); |
|
if (err) |
|
goto out; |
|
|
|
err = -ENOENT; |
|
old_entry = f2fs_find_entry(old_dir, &old_dentry->d_name, &old_page); |
|
if (!old_entry) { |
|
if (IS_ERR(old_page)) |
|
err = PTR_ERR(old_page); |
|
goto out; |
|
} |
|
|
|
new_entry = f2fs_find_entry(new_dir, &new_dentry->d_name, &new_page); |
|
if (!new_entry) { |
|
if (IS_ERR(new_page)) |
|
err = PTR_ERR(new_page); |
|
goto out_old; |
|
} |
|
|
|
/* prepare for updating ".." directory entry info later */ |
|
if (old_dir != new_dir) { |
|
if (S_ISDIR(old_inode->i_mode)) { |
|
old_dir_entry = f2fs_parent_dir(old_inode, |
|
&old_dir_page); |
|
if (!old_dir_entry) { |
|
if (IS_ERR(old_dir_page)) |
|
err = PTR_ERR(old_dir_page); |
|
goto out_new; |
|
} |
|
} |
|
|
|
if (S_ISDIR(new_inode->i_mode)) { |
|
new_dir_entry = f2fs_parent_dir(new_inode, |
|
&new_dir_page); |
|
if (!new_dir_entry) { |
|
if (IS_ERR(new_dir_page)) |
|
err = PTR_ERR(new_dir_page); |
|
goto out_old_dir; |
|
} |
|
} |
|
} |
|
|
|
/* |
|
* If cross rename between file and directory those are not |
|
* in the same directory, we will inc nlink of file's parent |
|
* later, so we should check upper boundary of its nlink. |
|
*/ |
|
if ((!old_dir_entry || !new_dir_entry) && |
|
old_dir_entry != new_dir_entry) { |
|
old_nlink = old_dir_entry ? -1 : 1; |
|
new_nlink = -old_nlink; |
|
err = -EMLINK; |
|
if ((old_nlink > 0 && old_dir->i_nlink >= F2FS_LINK_MAX) || |
|
(new_nlink > 0 && new_dir->i_nlink >= F2FS_LINK_MAX)) |
|
goto out_new_dir; |
|
} |
|
|
|
f2fs_balance_fs(sbi, true); |
|
|
|
f2fs_lock_op(sbi); |
|
|
|
/* update ".." directory entry info of old dentry */ |
|
if (old_dir_entry) |
|
f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); |
|
|
|
/* update ".." directory entry info of new dentry */ |
|
if (new_dir_entry) |
|
f2fs_set_link(new_inode, new_dir_entry, new_dir_page, old_dir); |
|
|
|
/* update directory entry info of old dir inode */ |
|
f2fs_set_link(old_dir, old_entry, old_page, new_inode); |
|
|
|
down_write(&F2FS_I(old_inode)->i_sem); |
|
if (!old_dir_entry) |
|
file_lost_pino(old_inode); |
|
else |
|
/* adjust dir's i_pino to pass fsck check */ |
|
f2fs_i_pino_write(old_inode, new_dir->i_ino); |
|
up_write(&F2FS_I(old_inode)->i_sem); |
|
|
|
old_dir->i_ctime = current_time(old_dir); |
|
if (old_nlink) { |
|
down_write(&F2FS_I(old_dir)->i_sem); |
|
f2fs_i_links_write(old_dir, old_nlink > 0); |
|
up_write(&F2FS_I(old_dir)->i_sem); |
|
} |
|
f2fs_mark_inode_dirty_sync(old_dir, false); |
|
|
|
/* update directory entry info of new dir inode */ |
|
f2fs_set_link(new_dir, new_entry, new_page, old_inode); |
|
|
|
down_write(&F2FS_I(new_inode)->i_sem); |
|
if (!new_dir_entry) |
|
file_lost_pino(new_inode); |
|
else |
|
/* adjust dir's i_pino to pass fsck check */ |
|
f2fs_i_pino_write(new_inode, old_dir->i_ino); |
|
up_write(&F2FS_I(new_inode)->i_sem); |
|
|
|
new_dir->i_ctime = current_time(new_dir); |
|
if (new_nlink) { |
|
down_write(&F2FS_I(new_dir)->i_sem); |
|
f2fs_i_links_write(new_dir, new_nlink > 0); |
|
up_write(&F2FS_I(new_dir)->i_sem); |
|
} |
|
f2fs_mark_inode_dirty_sync(new_dir, false); |
|
|
|
if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT) { |
|
f2fs_add_ino_entry(sbi, old_dir->i_ino, TRANS_DIR_INO); |
|
f2fs_add_ino_entry(sbi, new_dir->i_ino, TRANS_DIR_INO); |
|
} |
|
|
|
f2fs_unlock_op(sbi); |
|
|
|
if (IS_DIRSYNC(old_dir) || IS_DIRSYNC(new_dir)) |
|
f2fs_sync_fs(sbi->sb, 1); |
|
|
|
f2fs_update_time(sbi, REQ_TIME); |
|
return 0; |
|
out_new_dir: |
|
if (new_dir_entry) { |
|
f2fs_put_page(new_dir_page, 0); |
|
} |
|
out_old_dir: |
|
if (old_dir_entry) { |
|
f2fs_put_page(old_dir_page, 0); |
|
} |
|
out_new: |
|
f2fs_put_page(new_page, 0); |
|
out_old: |
|
f2fs_put_page(old_page, 0); |
|
out: |
|
return err; |
|
} |
|
|
|
static int f2fs_rename2(struct user_namespace *mnt_userns, |
|
struct inode *old_dir, struct dentry *old_dentry, |
|
struct inode *new_dir, struct dentry *new_dentry, |
|
unsigned int flags) |
|
{ |
|
int err; |
|
|
|
if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT)) |
|
return -EINVAL; |
|
|
|
err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry, |
|
flags); |
|
if (err) |
|
return err; |
|
|
|
if (flags & RENAME_EXCHANGE) { |
|
return f2fs_cross_rename(old_dir, old_dentry, |
|
new_dir, new_dentry); |
|
} |
|
/* |
|
* VFS has already handled the new dentry existence case, |
|
* here, we just deal with "RENAME_NOREPLACE" as regular rename. |
|
*/ |
|
return f2fs_rename(old_dir, old_dentry, new_dir, new_dentry, flags); |
|
} |
|
|
|
static const char *f2fs_encrypted_get_link(struct dentry *dentry, |
|
struct inode *inode, |
|
struct delayed_call *done) |
|
{ |
|
struct page *page; |
|
const char *target; |
|
|
|
if (!dentry) |
|
return ERR_PTR(-ECHILD); |
|
|
|
page = read_mapping_page(inode->i_mapping, 0, NULL); |
|
if (IS_ERR(page)) |
|
return ERR_CAST(page); |
|
|
|
target = fscrypt_get_symlink(inode, page_address(page), |
|
inode->i_sb->s_blocksize, done); |
|
put_page(page); |
|
return target; |
|
} |
|
|
|
const struct inode_operations f2fs_encrypted_symlink_inode_operations = { |
|
.get_link = f2fs_encrypted_get_link, |
|
.getattr = f2fs_getattr, |
|
.setattr = f2fs_setattr, |
|
.listxattr = f2fs_listxattr, |
|
}; |
|
|
|
const struct inode_operations f2fs_dir_inode_operations = { |
|
.create = f2fs_create, |
|
.lookup = f2fs_lookup, |
|
.link = f2fs_link, |
|
.unlink = f2fs_unlink, |
|
.symlink = f2fs_symlink, |
|
.mkdir = f2fs_mkdir, |
|
.rmdir = f2fs_rmdir, |
|
.mknod = f2fs_mknod, |
|
.rename = f2fs_rename2, |
|
.tmpfile = f2fs_tmpfile, |
|
.getattr = f2fs_getattr, |
|
.setattr = f2fs_setattr, |
|
.get_acl = f2fs_get_acl, |
|
.set_acl = f2fs_set_acl, |
|
.listxattr = f2fs_listxattr, |
|
.fiemap = f2fs_fiemap, |
|
}; |
|
|
|
const struct inode_operations f2fs_symlink_inode_operations = { |
|
.get_link = f2fs_get_link, |
|
.getattr = f2fs_getattr, |
|
.setattr = f2fs_setattr, |
|
.listxattr = f2fs_listxattr, |
|
}; |
|
|
|
const struct inode_operations f2fs_special_inode_operations = { |
|
.getattr = f2fs_getattr, |
|
.setattr = f2fs_setattr, |
|
.get_acl = f2fs_get_acl, |
|
.set_acl = f2fs_set_acl, |
|
.listxattr = f2fs_listxattr, |
|
};
|
|
|