diff options
| author | Daeho Jeong <daehojeong@google.com> | 2021-01-21 22:45:29 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-02-03 13:03:58 -0800 |
| commit | e65920661708b7c0f3db45c9cd5d0095034ee37f (patch) | |
| tree | 93a95df64ff3478f1e939e9ea8ec2202c595e303 /fs/f2fs/f2fs.h | |
| parent | 261eeb9c1585de4515a770b48a3c89672c08ae7f (diff) | |
f2fs: add ckpt_thread_ioprio sysfs node
Added "ckpt_thread_ioprio" sysfs node to give a way to change checkpoint
merge daemon's io priority. Its default value is "be,3", which means
"BE" I/O class and I/O priority "3". We can select the class between "rt"
and "be", and set the I/O priority within valid range of it.
"," delimiter is necessary in between I/O class and priority number.
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/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index f7536aca8a31..2860003a09ed 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -277,6 +277,7 @@ struct ckpt_req { struct ckpt_req_control { struct task_struct *f2fs_issue_ckpt; /* checkpoint task */ + int ckpt_thread_ioprio; /* checkpoint merge thread ioprio */ wait_queue_head_t ckpt_wait_queue; /* waiting queue for wake-up */ atomic_t issued_ckpt; /* # of actually issued ckpts */ atomic_t total_ckpt; /* # of total ckpts */ |