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SubjectRe: [PATCH 2/3] f2fs: shrink blk plug region
On 04/12, Chao Yu wrote:
> Hi Jaegeuk,
>
> Just reminding, miss merging this patch? :)

Yup, merged. ;)

>
> Thanks,
>
> On 2017/3/27 18:14, Chao Yu wrote:
> > Don't use blk plug covering area where there won't be any IOs being issued.
> >
> > Signed-off-by: Chao Yu <yuchao0@huawei.com>
> > ---
> > fs/f2fs/segment.c | 6 ++----
> > 1 file changed, 2 insertions(+), 4 deletions(-)
> >
> > diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> > index c1a03b0857f9..57a81f9c8c14 100644
> > --- a/fs/f2fs/segment.c
> > +++ b/fs/f2fs/segment.c
> > @@ -848,9 +848,8 @@ static int issue_discard_thread(void *data)
> > if (kthread_should_stop())
> > return 0;
> >
> > - blk_start_plug(&plug);
> > -
> > mutex_lock(&dcc->cmd_lock);
> > + blk_start_plug(&plug);
> > list_for_each_entry_safe(dc, tmp, pend_list, list) {
> > f2fs_bug_on(sbi, dc->state != D_PREP);
> >
> > @@ -860,6 +859,7 @@ static int issue_discard_thread(void *data)
> > if (iter++ > DISCARD_ISSUE_RATE)
> > break;
> > }
> > + blk_finish_plug(&plug);
> >
> > list_for_each_entry_safe(dc, tmp, wait_list, list) {
> > if (dc->state == D_DONE)
> > @@ -867,8 +867,6 @@ static int issue_discard_thread(void *data)
> > }
> > mutex_unlock(&dcc->cmd_lock);
> >
> > - blk_finish_plug(&plug);
> > -
> > iter = 0;
> > congestion_wait(BLK_RW_SYNC, HZ/50);
> >
> >

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