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SubjectRe: [PATCH 4/5] f2fs: issue discard aggressively in the gc_urgent mode
Change log from v1:
- relax more to issue discard commands

This patch avoids to skip discard commands when user sets gc_urgent mode.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/segment.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 5e5e2936a26a..1e3dd3de4ecc 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1411,12 +1411,11 @@ static int issue_discard_thread(void *data)
if (kthread_should_stop())
return 0;

- if (dcc->discard_wake) {
+ if (dcc->discard_wake)
dcc->discard_wake = 0;
- if (sbi->gc_thread && sbi->gc_thread->gc_urgent)
- init_discard_policy(&dpolicy,
- DPOLICY_FORCE, 1);
- }
+
+ if (sbi->gc_thread && sbi->gc_thread->gc_urgent)
+ init_discard_policy(&dpolicy, DPOLICY_FORCE, 1);

sb_start_intwrite(sbi->sb);

@@ -1727,7 +1726,7 @@ void init_discard_policy(struct discard_policy *dpolicy,
} else if (discard_type == DPOLICY_FORCE) {
dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;
dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME;
- dpolicy->io_aware = true;
+ dpolicy->io_aware = false;
} else if (discard_type == DPOLICY_FSTRIM) {
dpolicy->io_aware = false;
} else if (discard_type == DPOLICY_UMOUNT) {
--
2.15.0.531.g2ccb3012c9-goog
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