From: Jia Zhu <zhujia.zj@bytedance.com>
Date: Sun, 18 Sep 2022 04:34:51 +0000 (+0800)
Subject: erofs: use kill_anon_super() to kill super in fscache mode
X-Git-Tag: v5.19.17~531
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f27bafeb9fb455a686c47389e96193d7b2931de9;p=thirdparty%2Fkernel%2Fstable.git

erofs: use kill_anon_super() to kill super in fscache mode

[ Upstream commit 1015c1016c231b26d4e2c9b3da65b6c043eb97a3 ]

Use kill_anon_super() instead of generic_shutdown_super() since the
mount() in erofs fscache mode uses get_tree_nodev() and associated
anon bdev needs to be freed.

Fixes: 9c0cc9c729657 ("erofs: add 'fsid' mount option")
Suggested-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Jia Zhu <zhujia.zj@bytedance.com>
Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220918043456.147-2-zhujia.zj@bytedance.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 95addc5c9d34d..ddf8f737cfb58 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -877,7 +877,7 @@ static void erofs_kill_sb(struct super_block *sb)
 	WARN_ON(sb->s_magic != EROFS_SUPER_MAGIC);
 
 	if (erofs_is_fscache_mode(sb))
-		generic_shutdown_super(sb);
+		kill_anon_super(sb);
 	else
 		kill_block_super(sb);