The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

Possible dependencies:

e6ecb1424291 ("f2fs: allow to read node block after shutdown") b7ec2061737f ("f2fs: do not submit NEW_ADDR to read node block")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From e6ecb142429183cef4835f31d4134050ae660032 Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim jaegeuk@kernel.org Date: Tue, 8 Nov 2022 17:59:34 -0800 Subject: [PATCH] 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 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; }