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| 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/checkpoint.c | |
| parent | 261eeb9c1585de4515a770b48a3c89672c08ae7f (diff) | |
| download | linux-stable-e65920661708b7c0f3db45c9cd5d0095034ee37f.tar.gz linux-stable-e65920661708b7c0f3db45c9cd5d0095034ee37f.tar.bz2 linux-stable-e65920661708b7c0f3db45c9cd5d0095034ee37f.zip | |
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/checkpoint.c')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 6f6ecba8f920..579b9c3603cc 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -1851,7 +1851,7 @@ int f2fs_start_ckpt_thread(struct f2fs_sb_info *sbi) return -ENOMEM; } - set_task_ioprio(cprc->f2fs_issue_ckpt, DEFAULT_CHECKPOINT_IOPRIO); + set_task_ioprio(cprc->f2fs_issue_ckpt, cprc->ckpt_thread_ioprio); return 0; } @@ -1877,6 +1877,7 @@ void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi) atomic_set(&cprc->issued_ckpt, 0); atomic_set(&cprc->total_ckpt, 0); atomic_set(&cprc->queued_ckpt, 0); + cprc->ckpt_thread_ioprio = DEFAULT_CHECKPOINT_IOPRIO; init_waitqueue_head(&cprc->ckpt_wait_queue); init_llist_head(&cprc->issue_list); spin_lock_init(&cprc->stat_lock); |