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From: Brian Foster <bfoster@redhat.com>
To: linux-xfs@vger.kernel.org
Subject: [PATCH] xfs: use bitops interface for buf log item AIL flag check
Date: Tue, 17 Dec 2019 13:42:03 -0500	[thread overview]
Message-ID: <20191217184203.56997-1-bfoster@redhat.com> (raw)

The xfs_log_item flags were converted to atomic bitops as of commit
22525c17ed ("xfs: log item flags are racy"). The assert check for
AIL presence in xfs_buf_item_relse() still uses the old value based
check. This likely went unnoticed as XFS_LI_IN_AIL evaluates to 0
and causes the assert to unconditionally pass. Fix up the check.

Signed-off-by: Brian Foster <bfoster@redhat.com>
---
 fs/xfs/xfs_buf_item.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 3458a1264a3f..3984779e5911 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -956,7 +956,7 @@ xfs_buf_item_relse(
 	struct xfs_buf_log_item	*bip = bp->b_log_item;
 
 	trace_xfs_buf_item_relse(bp, _RET_IP_);
-	ASSERT(!(bip->bli_item.li_flags & XFS_LI_IN_AIL));
+	ASSERT(!test_bit(XFS_LI_IN_AIL, &bip->bli_item.li_flags));
 
 	bp->b_log_item = NULL;
 	if (list_empty(&bp->b_li_list))
-- 
2.20.1


             reply	other threads:[~2019-12-17 18:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-17 18:42 Brian Foster [this message]
2019-12-17 20:01 ` [PATCH] xfs: use bitops interface for buf log item AIL flag check Eric Sandeen
2019-12-17 21:51   ` Darrick J. Wong

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