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 983572f23896901b50fda587aa8782c99e61fdcb..b9ee5a1176a072fefce82fb4d9631828c0c6fd49 100644 (file)
--- 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;
        }