From eb2e99943c5bd528af67516fbd9db0ad15e61611 Mon Sep 17 00:00:00 2001
From: Austin Kim <austindh.kim@gmail.com>
Date: Thu, 5 Sep 2019 18:08:50 -0700
Subject: [PATCH] xfs: Use WARN_ON_ONCE for bailout mount-operation
Git-commit: eb2e99943c5bd528af67516fbd9db0ad15e61611
Patch-mainline: v5.4-rc1
References: bsc#1166133
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>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Acked-by: Anthony Iliopoulos <ailiopoulos@suse.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 da50b12ef634..ba5b6f3b2b88 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;
--
2.16.4