From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Wed, 9 Nov 2022 01:59:34 +0000 (-0800)
Subject: f2fs: allow to read node block after shutdown
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e6ecb142429183cef4835f31d4134050ae660032;p=linux.git

f2fs: allow to read node block after shutdown

If block address is still alive, we should give a valid node block even after
shutdown. Otherwise, we can see zero data when reading out a file.

Cc: stable@vger.kernel.org
Fixes: 83a3bfdb5a8a ("f2fs: indicate shutdown f2fs to allow unmount successfully")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 983572f238969..b9ee5a1176a07 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1360,8 +1360,7 @@ static int read_node_page(struct page *page, blk_opf_t op_flags)
 		return err;
 
 	/* NEW_ADDR can be seen, after cp_error drops some dirty node pages */
-	if (unlikely(ni.blk_addr == NULL_ADDR || ni.blk_addr == NEW_ADDR) ||
-			is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)) {
+	if (unlikely(ni.blk_addr == NULL_ADDR || ni.blk_addr == NEW_ADDR)) {
 		ClearPageUptodate(page);
 		return -ENOENT;
 	}