From 5a6154920faf9d3d5a39de1da49c66af9831d270 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Wed, 20 Jun 2018 21:27:21 -0700
Subject: [PATCH] f2fs: don't issue discard commands in online discard is on
Actually, we don't need to issue discard commands, if discard is on, as
mentioned in the comment.
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
fs/f2fs/segment.c | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 9efce174c51a9..6dc8828b4d871 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2469,23 +2469,24 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
if (err)
goto out;
- start_block = START_BLOCK(sbi, start_segno);
- end_block = START_BLOCK(sbi, end_segno + 1);
-
- __init_discard_policy(sbi, &dpolicy, DPOLICY_FSTRIM, cpc.trim_minlen);
- __issue_discard_cmd_range(sbi, &dpolicy, start_block, end_block);
-
/*
* We filed discard candidates, but actually we don't need to wait for
* all of them, since they'll be issued in idle time along with runtime
* discard option. User configuration looks like using runtime discard
* or periodic fstrim instead of it.
*/
- if (!test_opt(sbi, DISCARD)) {
- trimmed = __wait_discard_cmd_range(sbi, &dpolicy,
+ if (test_opt(sbi, DISCARD))
+ goto out;
+
+ start_block = START_BLOCK(sbi, start_segno);
+ end_block = START_BLOCK(sbi, end_segno + 1);
+
+ __init_discard_policy(sbi, &dpolicy, DPOLICY_FSTRIM, cpc.trim_minlen);
+ __issue_discard_cmd_range(sbi, &dpolicy, start_block, end_block);
+
+ trimmed = __wait_discard_cmd_range(sbi, &dpolicy,
start_block, end_block);
- range->len = F2FS_BLK_TO_BYTES(trimmed);
- }
+ range->len = F2FS_BLK_TO_BYTES(trimmed);
out:
return err;
}
--
2.30.2