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f2fs: allow to read node block after shutdown 

commit e6ecb14242 upstream.

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: 83a3bfdb5a ("f2fs: indicate shutdown f2fs to allow unmount successfully")
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jaegeuk Kim 2022-11-08 17:59:34 -08:00 committed by Greg Kroah-Hartman
parent 9035f42b8f
commit db5fc12d8a
1 changed files with 1 additions and 2 deletions
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3
fs/f2fs/node.c
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@ -1358,8 +1358,7 @@ 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;
}