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synced 2024-11-11 12:28:41 +08:00
f2fs: fix to enable compress for newly created file if extension matches
If compress_extension is set, and a newly created file matches the
extension, the file could be marked as compression file. However,
if inline_data is also enabled, there is no chance to check its
extension since f2fs_should_compress() always returns false.
This patch moves set_compress_inode(), which do extension check, in
f2fs_should_compress() to check extensions before setting inline
data flag.
Fixes: 7165841d57 ("f2fs: fix to check inline_data during compressed inode conversion")
Signed-off-by: Sheng Yong <shengyong@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Sheng Yong
Jaegeuk Kim
parent
4ff23a6547
commit
787caf1bdc
@ -2980,7 +2980,7 @@ static inline void f2fs_change_bit(unsigned int nr, char *addr)
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/* Flags that should be inherited by new inodes from their parent. */
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#define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
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F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
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F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
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F2FS_CASEFOLD_FL)
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/* Flags that are appropriate for regular files (all but dir-specific ones). */
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#define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
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329
fs/f2fs/namei.c
329
fs/f2fs/namei.c
@ -22,8 +22,163 @@
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#include "acl.h"
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#include <trace/events/f2fs.h>
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static inline int is_extension_exist(const unsigned char *s, const char *sub,
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bool tmp_ext)
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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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if (!tmp_ext) {
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/* file has no temp extension */
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if (s[slen - sublen - 1] != '.')
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return 0;
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return !strncasecmp(s + slen - sublen, sub, sublen);
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}
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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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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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}
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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_new_inode(struct f2fs_sb_info *sbi, struct inode *dir,
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struct inode *inode, 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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unsigned char (*noext)[F2FS_EXTENSION_LEN] =
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F2FS_OPTION(sbi).noextensions;
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unsigned char (*ext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).extensions;
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unsigned char ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
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unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_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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return;
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if (S_ISDIR(inode->i_mode))
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goto inherit_comp;
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/* This name comes only from normal files. */
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if (!name)
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return;
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/* Don't compress hot files. */
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f2fs_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], false))
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break;
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f2fs_up_read(&sbi->sb_lock);
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if (i < (cold_count + hot_count))
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return;
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/* Don't compress unallowed extension. */
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for (i = 0; i < noext_cnt; i++)
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if (is_extension_exist(name, noext[i], false))
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return;
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/* Compress wanting extension. */
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for (i = 0; i < ext_cnt; i++) {
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if (is_extension_exist(name, ext[i], false)) {
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set_compress_context(inode);
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return;
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}
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}
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inherit_comp:
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/* Inherit the {no-}compression flag in directory */
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if (F2FS_I(dir)->i_flags & F2FS_NOCOMP_FL) {
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F2FS_I(inode)->i_flags |= F2FS_NOCOMP_FL;
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f2fs_mark_inode_dirty_sync(inode, true);
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} else if (F2FS_I(dir)->i_flags & F2FS_COMPR_FL) {
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set_compress_context(inode);
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}
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}
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static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns,
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struct inode *dir, umode_t mode)
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struct inode *dir, umode_t mode,
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const char *name)
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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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@ -114,12 +269,8 @@ static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns,
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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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/* Check compression first. */
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set_compress_new_inode(sbi, dir, inode, name);
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/* Should enable inline_data after compression set */
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if (test_opt(sbi, INLINE_DATA) && f2fs_may_inline_data(inode))
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@ -153,40 +304,6 @@ fail_drop:
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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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bool tmp_ext)
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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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if (!tmp_ext) {
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/* file has no temp extension */
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if (s[slen - sublen - 1] != '.')
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return 0;
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return !strncasecmp(s + slen - sublen, sub, sublen);
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}
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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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@ -217,124 +334,6 @@ static inline void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *
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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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}
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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,
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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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unsigned char (*noext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).noextensions;
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unsigned char (*ext)[F2FS_EXTENSION_LEN] = F2FS_OPTION(sbi).extensions;
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unsigned char ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
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unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_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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F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
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!f2fs_may_compress(inode) ||
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(!ext_cnt && !noext_cnt))
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return;
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f2fs_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], false)) {
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f2fs_up_read(&sbi->sb_lock);
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return;
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}
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}
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f2fs_up_read(&sbi->sb_lock);
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for (i = 0; i < noext_cnt; i++) {
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if (is_extension_exist(name, noext[i], false)) {
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f2fs_disable_compressed_file(inode);
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return;
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}
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}
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if (is_inode_flag_set(inode, FI_COMPRESSED_FILE))
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return;
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for (i = 0; i < ext_cnt; i++) {
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if (!is_extension_exist(name, ext[i], false))
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continue;
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/* Do not use inline_data with compression */
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stat_dec_inline_inode(inode);
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clear_inode_flag(inode, FI_INLINE_DATA);
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set_compress_context(inode);
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return;
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}
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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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{
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@ -352,15 +351,13 @@ static int f2fs_create(struct user_namespace *mnt_userns, struct inode *dir,
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if (err)
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return err;
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inode = f2fs_new_inode(mnt_userns, dir, mode);
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inode = f2fs_new_inode(mnt_userns, dir, mode, dentry->d_name.name);
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if (IS_ERR(inode))
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return PTR_ERR(inode);
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if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
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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;
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inode->i_fop = &f2fs_file_operations;
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inode->i_mapping->a_ops = &f2fs_dblock_aops;
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@ -689,7 +686,7 @@ static int f2fs_symlink(struct user_namespace *mnt_userns, struct inode *dir,
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if (err)
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return err;
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inode = f2fs_new_inode(mnt_userns, dir, S_IFLNK | S_IRWXUGO);
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inode = f2fs_new_inode(mnt_userns, dir, S_IFLNK | S_IRWXUGO, NULL);
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if (IS_ERR(inode))
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return PTR_ERR(inode);
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@ -760,7 +757,7 @@ static int f2fs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
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if (err)
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return err;
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inode = f2fs_new_inode(mnt_userns, dir, S_IFDIR | mode);
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inode = f2fs_new_inode(mnt_userns, dir, S_IFDIR | mode, NULL);
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if (IS_ERR(inode))
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return PTR_ERR(inode);
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@ -817,7 +814,7 @@ static int f2fs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
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if (err)
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return err;
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inode = f2fs_new_inode(mnt_userns, dir, mode);
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inode = f2fs_new_inode(mnt_userns, dir, mode, NULL);
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if (IS_ERR(inode))
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return PTR_ERR(inode);
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@ -856,7 +853,7 @@ static int __f2fs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
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if (err)
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return err;
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inode = f2fs_new_inode(mnt_userns, dir, mode);
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inode = f2fs_new_inode(mnt_userns, dir, mode, NULL);
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if (IS_ERR(inode))
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return PTR_ERR(inode);
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