diff options
| author | Chao Yu | 2017-08-02 23:21:48 +0800 |
|---|---|---|
| committer | Jaegeuk Kim | 2017-08-09 21:43:58 -0700 |
| commit | b0af6d491a6b5f5622fa91ac75f34f3640f862c4 (patch) | |
| tree | d70ceb1814e1f9797566f72242141a698a727907 /fs/f2fs/super.c | |
| parent | 35ee82ca133a58011e648a407d4ab13275c975d4 (diff) | |
f2fs: add app/fs io stat
This patch enables inner app/fs io stats and introduces below virtual fs
nodes for exposing stats info:
/sys/fs/f2fs/<dev>/iostat_enable
/proc/fs/f2fs/<dev>/iostat_info
Signed-off-by: Chao Yu <yuchao0@huawei.com>
[Jaegeuk Kim: fix wrong stat assignment]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b84367856f8e..ca340d84f8c2 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -2056,6 +2056,10 @@ try_onemore: set_sbi_flag(sbi, SBI_POR_DOING); spin_lock_init(&sbi->stat_lock); + /* init iostat info */ + spin_lock_init(&sbi->iostat_lock); + sbi->iostat_enable = false; + for (i = 0; i < NR_PAGE_TYPE; i++) { int n = (i == META) ? 1: NR_TEMP_TYPE; int j; |