diff mbox series

f2fs: allow to read node block after shutdown

Message ID 20221109020917.4121067-1-jaegeuk@kernel.org
State New
Headers
Series f2fs: allow to read node block after shutdown |

Commit Message

Jaegeuk Kim Nov. 9, 2022, 2:09 a.m. UTC 
  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.

Fixes: 83a3bfdb5a8 ("f2fs: indicate shutdown f2fs to allow unmount successfully")
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/node.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Jaegeuk Kim Nov. 9, 2022, 2:11 a.m. UTC | #1 
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: 83a3bfdb5a8 ("f2fs: indicate shutdown f2fs to allow unmount successfully")
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

 - Cc: stable

 fs/f2fs/node.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 983572f23896..b9ee5a1176a0 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;
 	}
Chao Yu Nov. 10, 2022, 12:14 p.m. UTC | #2 
On 2022/11/9 10:11, Jaegeuk Kim wrote:
> 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: 83a3bfdb5a8 ("f2fs: indicate shutdown f2fs to allow unmount successfully")
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,
diff mbox series

Patch

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 983572f23896..b9ee5a1176a0 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;
 	}