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f2fs: no need to check return value of debugfs_create functions 

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: linux-f2fs-devel@lists.sourceforge.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Greg Kroah-Hartman 2019-01-04 14:26:18 +01:00 committed by Jaegeuk Kim
parent 5d539245cb
commit c20e57b32d
3 changed files with 6 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
fs/f2fs/debug.c
View File

@ -511,30 +511,16 @@ void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
kvfree(si);
}
int __init f2fs_create_root_stats(void)
void __init f2fs_create_root_stats(void)
{
struct dentry *file;
f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
if (!f2fs_debugfs_root)
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;
debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root, NULL,
&stat_fops);
}
void f2fs_destroy_root_stats(void)
{
if (!f2fs_debugfs_root)
return;
debugfs_remove_recursive(f2fs_debugfs_root);
f2fs_debugfs_root = NULL;
}

4
fs/f2fs/f2fs.h
View File

@ -3329,7 +3329,7 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
int f2fs_build_stats(struct f2fs_sb_info *sbi);
void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
int __init f2fs_create_root_stats(void);
void __init f2fs_create_root_stats(void);
void f2fs_destroy_root_stats(void);
#else
#define stat_inc_cp_count(si) do { } while (0)
@ -3367,7 +3367,7 @@ 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 int __init f2fs_create_root_stats(void) { return 0; }
static inline void __init f2fs_create_root_stats(void) { }
static inline void f2fs_destroy_root_stats(void) { }
#endif

5
fs/f2fs/super.c
View File

@ -3550,9 +3550,7 @@ static int __init init_f2fs_fs(void)
err = register_filesystem(&f2fs_fs_type);
if (err)
goto free_shrinker;
err = f2fs_create_root_stats();
if (err)
goto free_filesystem;
f2fs_create_root_stats();
err = f2fs_init_post_read_processing();
if (err)
goto free_root_stats;
@ -3560,7 +3558,6 @@ static int __init init_f2fs_fs(void)
free_root_stats:
f2fs_destroy_root_stats();
free_filesystem:
unregister_filesystem(&f2fs_fs_type);
free_shrinker:
unregister_shrinker(&f2fs_shrinker_info);