diff options
| author | Wu Bo <bo.wu@vivo.com> | 2023-04-14 18:43:08 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-04-20 09:38:12 -0700 |
| commit | 5584785080045e6cd3ebc1aac49b9c0ec57f136a (patch) | |
| tree | 0c88d93cad589608e959d82324cffa98d1ea3a85 /fs/f2fs | |
| parent | c1660d88a064409879f6d467754bbe27259c71bb (diff) | |
| download | linux-5584785080045e6cd3ebc1aac49b9c0ec57f136a.tar.gz | |
f2fs: allocate trace path buffer from names_cache
It would be better to use the dedicated slab to store path.
Signed-off-by: Wu Bo <bo.wu@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/f2fs.h | 13 | ||||
| -rw-r--r-- | fs/f2fs/file.c | 4 |
2 files changed, 15 insertions, 2 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 6cae94d51821..d87044516fe9 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3347,6 +3347,19 @@ static inline void *f2fs_kmalloc(struct f2fs_sb_info *sbi, return kmalloc(size, flags); } +static inline void *f2fs_getname(struct f2fs_sb_info *sbi) +{ + if (time_to_inject(sbi, FAULT_KMALLOC)) + return NULL; + + return __getname(); +} + +static inline void f2fs_putname(char *buf) +{ + __putname(buf); +} + static inline void *f2fs_kzalloc(struct f2fs_sb_info *sbi, size_t size, gfp_t flags) { diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index 1b4411271f54..5ac53d2627d2 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -4372,7 +4372,7 @@ static void f2fs_trace_rw_file_path(struct kiocb *iocb, size_t count, int rw) struct inode *inode = file_inode(iocb->ki_filp); char *buf, *path; - buf = f2fs_kmalloc(F2FS_I_SB(inode), PATH_MAX, GFP_KERNEL); + buf = f2fs_getname(F2FS_I_SB(inode)); if (!buf) return; path = dentry_path_raw(file_dentry(iocb->ki_filp), buf, PATH_MAX); @@ -4385,7 +4385,7 @@ static void f2fs_trace_rw_file_path(struct kiocb *iocb, size_t count, int rw) trace_f2fs_dataread_start(inode, iocb->ki_pos, count, current->pid, path, current->comm); free_buf: - kfree(buf); + f2fs_putname(buf); } static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *to) |