This is a note to let you know that I've just added the patch titled
btrfs: fix fsverify read error handling in end_page_read
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
btrfs-fix-fsverify-read-error-handling-in-end_page_r.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 875ef408e105242ca16ec120c132de1c6734ec1e
Author: Christoph Hellwig <hch@xxxxxx>
Date: Wed May 31 08:04:52 2023 +0200
btrfs: fix fsverify read error handling in end_page_read
[ Upstream commit 2c14f0ffdd30bd3d321ad5fe76fcf701746e1df6 ]
Also clear the uptodate bit to make sure the page isn't seen as uptodate
in the page cache if fsverity verification fails.
Fixes: 146054090b08 ("btrfs: initial fsverity support")
CC: stable@xxxxxxxxxxxxxxx # 5.15+
Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 496c2c9920fc6..82b9779deaa88 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -494,12 +494,8 @@ static void end_page_read(struct page *page, bool uptodate, u64 start, u32 len)
ASSERT(page_offset(page) <= start &&
start + len <= page_offset(page) + PAGE_SIZE);
- if (uptodate) {
- if (!btrfs_verify_page(page, start)) {
- btrfs_page_set_error(fs_info, page, start, len);
- } else {
- btrfs_page_set_uptodate(fs_info, page, start, len);
- }
+ if (uptodate && btrfs_verify_page(page, start)) {
+ btrfs_page_set_uptodate(fs_info, page, start, len);
} else {
btrfs_page_clear_uptodate(fs_info, page, start, len);
btrfs_page_set_error(fs_info, page, start, len);
