btrfs: fix fsverify read error handling in end_page_read

Also clear the uptodate bit to make sure the page isn't seen as uptodate
in the page cache if fsverity verification fails.

Fixes: 14605409 ("btrfs: initial fsverity support")
CC: stable@vger.kernel.org # 5.15+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent_io.c

@@ -497,12 +497,8 @@ 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);