From: Anand Jain <anand.jain@oracle.com>
To: linux-btrfs@vger.kernel.org
Cc: Anand Jain <anand.jain@oracle.com>
Subject: [PATCH 4/4] btrfs: use test_and_clear_bit() in wait_dev_flush()
Date: Mon, 27 Mar 2023 17:53:10 +0800 [thread overview]
Message-ID: <7baf74b071f9d9002d2543cfc4f86bd3ddf7127f.1679910088.git.anand.jain@oracle.com> (raw)
In-Reply-To: <cover.1679910087.git.anand.jain@oracle.com>
The function wait_dev_flush() tests for the BTRFS_DEV_STATE_FLUSH_SENT
bit and then clears it separately. Instead, use test_and_clear_bit().
Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
fs/btrfs/disk-io.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 040142f2e76c..1f9e2a2a8267 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4108,10 +4108,9 @@ static bool wait_dev_flush(struct btrfs_device *device)
{
struct bio *bio = &device->flush_bio;
- if (!test_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state))
+ if (!test_and_clear_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state))
return true;
- clear_bit(BTRFS_DEV_STATE_FLUSH_SENT, &device->dev_state);
wait_for_completion_io(&device->flush_wait);
if (bio->bi_status) {
--
2.39.2
next prev parent reply other threads:[~2023-03-27 9:54 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-27 9:53 [PATCH 0/4] btrfs: optimize disks flush code Anand Jain
2023-03-27 9:53 ` [PATCH 1/4] btrfs: move last_flush_error to write_dev_flush and wait_dev_flush Anand Jain
2023-03-27 9:53 ` [PATCH 2/4] btrfs: opencode check_barrier_error() Anand Jain
2023-03-27 9:53 ` [PATCH 3/4] Btrfs: change wait_dev_flush() return type to bool Anand Jain
2023-03-27 17:11 ` David Sterba
2023-03-28 2:58 ` Anand Jain
2023-03-27 23:52 ` kernel test robot
2023-03-28 5:31 ` [PATCH] fixup: Btrfs: change wait_dev_flush() return type to bool v2 Anand Jain
2023-03-28 18:28 ` David Sterba
2023-03-27 9:53 ` Anand Jain [this message]
2023-03-27 17:14 ` [PATCH 4/4] btrfs: use test_and_clear_bit() in wait_dev_flush() David Sterba
2023-03-28 5:05 ` Anand Jain
2023-03-28 18:33 ` David Sterba
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