Messages in this thread | | | Subject | Re: [PATCH 2/3] f2fs: shrink blk plug region | From | Chao Yu <> | Date | Wed, 12 Apr 2017 16:33:37 +0800 |
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Hi Jaegeuk,
Just reminding, miss merging this patch? :)
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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