[PATCH v2] f2fs: turn down IO priority of discard from background
From: Chao Yu
Date: Tue Apr 10 2018 - 03:43:28 EST
In order to avoid interfering normal r/w IO, let's turn down IO
priority of discard issued from background.
Signed-off-by: Chao Yu <yuchao0@xxxxxxxxxx>
---
v2:
- correct commit message.
fs/f2fs/segment.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index aabe0d6b8307..5e708debeb9c 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1723,6 +1723,7 @@ void init_discard_policy(struct discard_policy *dpolicy,
dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;
dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME;
dpolicy->io_aware = true;
+ dpolicy->sync = false;
} else if (discard_type == DPOLICY_FORCE) {
dpolicy->min_interval = DEF_MIN_DISCARD_ISSUE_TIME;
dpolicy->max_interval = DEF_MAX_DISCARD_ISSUE_TIME;
--
2.15.0.55.gc2ece9dc4de6