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| author | Daeho Jeong <daehojeong@google.com> | 2020-03-30 03:30:59 +0000 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2020-04-17 09:16:57 -0700 |
| commit | 2bc4bea33848e4c5f441fcec4a94497082c1cc9f (patch) | |
| tree | 5961f9444c2edbf0bbbbf9a48d63986fb85d870b /fs/f2fs/super.c | |
| parent | da9953b729c12ece6d35fd15d236457eee679228 (diff) | |
| download | lwn-2bc4bea33848e4c5f441fcec4a94497082c1cc9f.tar.gz lwn-2bc4bea33848e4c5f441fcec4a94497082c1cc9f.zip | |
f2fs: add tracepoint for f2fs iostat
Added a tracepoint to see iostat of f2fs. Default period of that
is 3 second. This tracepoint can be used to be monitoring
I/O statistics periodically.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/super.c')
| -rw-r--r-- | fs/f2fs/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index f2dfc21c6abb..438296e17183 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -3424,6 +3424,7 @@ try_onemore: /* init iostat info */ spin_lock_init(&sbi->iostat_lock); sbi->iostat_enable = false; + sbi->iostat_period_ms = DEFAULT_IOSTAT_PERIOD_MS; for (i = 0; i < NR_PAGE_TYPE; i++) { int n = (i == META) ? 1: NR_TEMP_TYPE; |