The patch below does not apply to the 4.19-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@xxxxxxxxxxxxxxx>.
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@xxxxxxxxxx>
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@xxxxxxxxxxxxxxx
Fixes: 83a3bfdb5a8a ("f2fs: indicate shutdown f2fs to allow unmount successfully")
Reviewed-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
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;
}
