[PATCH v2 1/2] f2fs: fix to enable compress for newly created file if extension matches

Sheng Yong
2022-11-11T10:09:18Z

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: 7165841d578e ("f2fs: fix to check inline_data during compressed inode conversion")
Signed-off-by: Sheng Yong <shengyong@oppo.com>
---
fs/f2fs/namei.c | 27 +++++++++++++--------------
1 file changed, 13 insertions(+), 14 deletions(-)

---
v1->v2: add filename parameter for f2fs_new_inode, and move
set_compress_inode into f2fs_new_inode

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index e104409c3a0e5..36e251f438568 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -22,8 +22,12 @@
#include "acl.h"
#include <trace/events/f2fs.h>

+static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
+ const unsigned char *name);
+
static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns,
- struct inode *dir, umode_t mode)
+ struct inode *dir, umode_t mode,
+ const char *name)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dir);
nid_t ino;
@@ -119,6 +123,8 @@ static struct inode *f2fs_new_inode(struct user_namespace *mnt_userns,
if ((F2FS_I(dir)->i_flags & F2FS_COMPR_FL) &&
f2fs_may_compress(inode))
set_compress_context(inode);
+ if (name)
+ set_compress_inode(sbi, inode, name);
}

/* Should enable inline_data after compression set */
@@ -293,8 +299,7 @@ static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
unsigned char noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
int i, cold_count, hot_count;

- if (!f2fs_sb_has_compression(sbi) ||
- F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
+ if (F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
!f2fs_may_compress(inode) ||
(!ext_cnt && !noext_cnt))
return;
@@ -326,10 +331,6 @@ static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,
for (i = 0; i < ext_cnt; i++) {
if (!is_extension_exist(name, ext[i], false))
continue;
-
- /* Do not use inline_data with compression */
- stat_dec_inline_inode(inode);
- clear_inode_flag(inode, FI_INLINE_DATA);
set_compress_context(inode);
return;
}
@@ -352,15 +353,13 @@ static int f2fs_create(struct user_namespace *mnt_userns, struct inode *dir,
if (err)
return err;

- inode = f2fs_new_inode(mnt_userns, dir, mode);
+ inode = f2fs_new_inode(mnt_userns, dir, mode, dentry->d_name.name);
if (IS_ERR(inode))
return PTR_ERR(inode);

if (!test_opt(sbi, DISABLE_EXT_IDENTIFY))
set_file_temperature(sbi, inode, dentry->d_name.name);

- set_compress_inode(sbi, inode, dentry->d_name.name);
-
inode->i_op = &f2fs_file_inode_operations;
inode->i_fop = &f2fs_file_operations;
inode->i_mapping->a_ops = &f2fs_dblock_aops;
@@ -689,7 +688,7 @@ static int f2fs_symlink(struct user_namespace *mnt_userns, struct inode *dir,
if (err)
return err;

- inode = f2fs_new_inode(mnt_userns, dir, S_IFLNK | S_IRWXUGO);
+ inode = f2fs_new_inode(mnt_userns, dir, S_IFLNK | S_IRWXUGO, NULL);
if (IS_ERR(inode))
return PTR_ERR(inode);

@@ -760,7 +759,7 @@ static int f2fs_mkdir(struct user_namespace *mnt_userns, struct inode *dir,
if (err)
return err;

- inode = f2fs_new_inode(mnt_userns, dir, S_IFDIR | mode);
+ inode = f2fs_new_inode(mnt_userns, dir, S_IFDIR | mode, NULL);
if (IS_ERR(inode))
return PTR_ERR(inode);

@@ -817,7 +816,7 @@ static int f2fs_mknod(struct user_namespace *mnt_userns, struct inode *dir,
if (err)
return err;

- inode = f2fs_new_inode(mnt_userns, dir, mode);
+ inode = f2fs_new_inode(mnt_userns, dir, mode, NULL);
if (IS_ERR(inode))
return PTR_ERR(inode);

@@ -856,7 +855,7 @@ static int __f2fs_tmpfile(struct user_namespace *mnt_userns, struct inode *dir,
if (err)
return err;

- inode = f2fs_new_inode(mnt_userns, dir, mode);
+ inode = f2fs_new_inode(mnt_userns, dir, mode, NULL);
if (IS_ERR(inode))
return PTR_ERR(inode);

--
2.25.1