diff options
| author | Chao Yu <chao2.yu@samsung.com> | 2015-10-29 09:13:04 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2015-12-04 11:52:33 -0800 |
| commit | 787c7b8cb3c5196f77e4682e0b1c71375e74822c (patch) | |
| tree | fc4d95e9b7f37c0095fb9adb4337bcb89a1da1da /fs/f2fs | |
| parent | fb39cbda147082a2e7dc4e2b5f3298448295e3c4 (diff) | |
| download | linux-787c7b8cb3c5196f77e4682e0b1c71375e74822c.tar.bz2 | |
f2fs: report error of f2fs_create_root_stats
f2fs_create_root_stats can fail due to no memory, report it to user.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/debug.c | 7 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 4 | ||||
| -rw-r--r-- | fs/f2fs/super.c | 6 |
3 files changed, 12 insertions, 5 deletions
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index 478e5d54154f..b0966f3b1c9a 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -406,20 +406,23 @@ void f2fs_destroy_stats(struct f2fs_sb_info *sbi) kfree(si); } -void __init f2fs_create_root_stats(void) +int __init f2fs_create_root_stats(void) { struct dentry *file; f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); if (!f2fs_debugfs_root) - return; + return -ENOMEM; file = debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root, NULL, &stat_fops); if (!file) { debugfs_remove(f2fs_debugfs_root); f2fs_debugfs_root = NULL; + return -ENOMEM; } + + return 0; } void f2fs_destroy_root_stats(void) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 9db5500d63d9..3f1570c4fcf0 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -1987,7 +1987,7 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi) int f2fs_build_stats(struct f2fs_sb_info *); void f2fs_destroy_stats(struct f2fs_sb_info *); -void __init f2fs_create_root_stats(void); +int __init f2fs_create_root_stats(void); void f2fs_destroy_root_stats(void); #else #define stat_inc_cp_count(si) @@ -2015,7 +2015,7 @@ void f2fs_destroy_root_stats(void); static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; } static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { } -static inline void __init f2fs_create_root_stats(void) { } +static inline int __init f2fs_create_root_stats(void) { return 0; } static inline void f2fs_destroy_root_stats(void) { } #endif diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 3a65e0132352..67864ab376c8 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1478,10 +1478,14 @@ static int __init init_f2fs_fs(void) err = register_filesystem(&f2fs_fs_type); if (err) goto free_shrinker; - f2fs_create_root_stats(); + err = f2fs_create_root_stats(); + if (err) + goto free_filesystem; f2fs_proc_root = proc_mkdir("fs/f2fs", NULL); return 0; +free_filesystem: + unregister_filesystem(&f2fs_fs_type); free_shrinker: unregister_shrinker(&f2fs_shrinker_info); free_crypto: |