From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Fri, 28 Sep 2018 05:15:31 +0000 (-0700)
Subject: f2fs: fix missing up_read
X-Git-Tag: rel_imx_5.10.35_2.0.0-somdevices.0~6096^2~30
X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=89d13c38501df730cbb2e02c4499da1b5187119d;p=linux.git

f2fs: fix missing up_read

This patch fixes missing up_read call.

Fixes: c9b60788fc76 ("f2fs: fix to do sanity check with block address in main area")
Cc: <stable@vger.kernel.org> # 4.19+
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 3994b44541b4..acb819b8fc42 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1541,8 +1541,10 @@ static int __write_node_page(struct page *page, bool atomic, bool *submitted,
 	}
 
 	if (__is_valid_data_blkaddr(ni.blk_addr) &&
-		!f2fs_is_valid_blkaddr(sbi, ni.blk_addr, DATA_GENERIC))
+		!f2fs_is_valid_blkaddr(sbi, ni.blk_addr, DATA_GENERIC)) {
+		up_read(&sbi->node_write);
 		goto redirty_out;
+	}
 
 	if (atomic && !test_opt(sbi, NOBARRIER))
 		fio.op_flags |= REQ_PREFLUSH | REQ_FUA;