aboutsummaryrefslogtreecommitdiffstats
path: root/fs
diff options
context:
space:
mode:
authorNamjae Jeon <linkinjeon@gmail.com>2013-01-15 19:58:47 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-01-15 20:19:15 +0900
commit4589d25d015c2d02bb5f7075d0cbf6dcf23a33c0 (patch)
treef91c18c0285d980938b8bbac7d8c7e7ed5863421 /fs
parent66af62ce7588736ae65edfdb1c0df597775c4d21 (diff)
f2fs: fix the debugfs entry creation path
As the "status" debugfs entry will be maintained for entire F2FS filesystem irrespective of the number of partitions. So, we can move the initialization to the init part of the f2fs and destroy will be done from exit part. After making changes, for individual partition mount - entry creation code will not be executed. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/f2fs/debug.c27
-rw-r--r--fs/f2fs/f2fs.h6
-rw-r--r--fs/f2fs/super.c7
3 files changed, 19 insertions, 21 deletions
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 73f034a9418..c8c37307b32 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -300,7 +300,7 @@ static const struct file_operations stat_fops = {
.release = single_release,
};
-static int init_stats(struct f2fs_sb_info *sbi)
+int f2fs_build_stats(struct f2fs_sb_info *sbi)
{
struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
struct f2fs_stat_info *si;
@@ -327,21 +327,6 @@ static int init_stats(struct f2fs_sb_info *sbi)
return 0;
}
-int f2fs_build_stats(struct f2fs_sb_info *sbi)
-{
- int retval;
-
- retval = init_stats(sbi);
- if (retval)
- return retval;
-
- if (!debugfs_root)
- debugfs_root = debugfs_create_dir("f2fs", NULL);
-
- debugfs_create_file("status", S_IRUGO, debugfs_root, NULL, &stat_fops);
- return 0;
-}
-
void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
{
struct f2fs_stat_info *si = sbi->stat_info;
@@ -353,7 +338,15 @@ void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
kfree(sbi->stat_info);
}
-void destroy_root_stats(void)
+void __init f2fs_create_root_stats(void)
+{
+ debugfs_root = debugfs_create_dir("f2fs", NULL);
+ if (debugfs_root)
+ debugfs_create_file("status", S_IRUGO, debugfs_root,
+ NULL, &stat_fops);
+}
+
+void f2fs_destroy_root_stats(void)
{
debugfs_remove_recursive(debugfs_root);
debugfs_root = NULL;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 285e43d602f..976325d51e3 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1060,7 +1060,8 @@ struct f2fs_stat_info {
int f2fs_build_stats(struct f2fs_sb_info *);
void f2fs_destroy_stats(struct f2fs_sb_info *);
-void destroy_root_stats(void);
+void f2fs_create_root_stats(void);
+void f2fs_destroy_root_stats(void);
#else
#define stat_inc_call_count(si)
#define stat_inc_seg_count(si, type)
@@ -1070,7 +1071,8 @@ void 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 destroy_root_stats(void) { }
+static inline void f2fs_create_root_stats(void) { }
+static inline void f2fs_destroy_root_stats(void) { }
#endif
extern const struct file_operations f2fs_dir_operations;
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index ac127fde8e1..d551a724b73 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -675,14 +675,17 @@ static int __init init_f2fs_fs(void)
err = create_checkpoint_caches();
if (err)
goto fail;
- return register_filesystem(&f2fs_fs_type);
+ err = register_filesystem(&f2fs_fs_type);
+ if (err)
+ goto fail;
+ f2fs_create_root_stats();
fail:
return err;
}
static void __exit exit_f2fs_fs(void)
{
- destroy_root_stats();
+ f2fs_destroy_root_stats();
unregister_filesystem(&f2fs_fs_type);
destroy_checkpoint_caches();
destroy_gc_caches();