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From: Austin Kim <austindh.kim@gmail.com>
To: darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org,
	austindh.kim@gmail.com
Subject: [PATCH] xfs: Use WARN_ON_ONCE for bailout mount-operation
Date: Fri, 30 Aug 2019 10:41:10 +0900	[thread overview]
Message-ID: <20190830014110.GA20651@LGEARND20B15> (raw)

If the CONFIG_BUG is enabled, BUG is executed and then system is crashed.
However, the bailout for mount is no longer proceeding.

Using WARN_ON_ONCE rather than BUG can prevent this situation.

Signed-off-by: Austin Kim <austindh.kim@gmail.com>
---
 fs/xfs/xfs_mount.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 322da69..3ab2acf 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -214,7 +214,7 @@ xfs_initialize_perag(
 
 		spin_lock(&mp->m_perag_lock);
 		if (radix_tree_insert(&mp->m_perag_tree, index, pag)) {
-			BUG();
+			WARN_ON_ONCE(1);
 			spin_unlock(&mp->m_perag_lock);
 			radix_tree_preload_end();
 			error = -EEXIST;
-- 
2.6.2


             reply	other threads:[~2019-08-30  1:41 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-30  1:41 Austin Kim [this message]
2019-09-06  1:10 ` [PATCH] xfs: Use WARN_ON_ONCE for bailout mount-operation Darrick J. Wong

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