linux-kernel - [PATCH] f2fs: check zone write pointer points to the end of zone

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Date:   Mon, 12 Jun 2023 16:32:03 -0700
From:   Daeho Jeong <daeho43@...il.com>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com
Cc:     Daeho Jeong <daehojeong@...gle.com>
Subject: [PATCH] f2fs: check zone write pointer points to the end of zone

From: Daeho Jeong <daehojeong@...gle.com>

We don't need to report an issue, when the zone write pointer already
points to the end of the zone, since the zone mismatch is already taken
care.

Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
---
 fs/f2fs/segment.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 0c0c033c4bdd..8c7af8b4fc47 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -4888,8 +4888,12 @@ static int check_zone_write_pointer(struct f2fs_sb_info *sbi,
 			break;
 	}
 
-	// The write pointer matches with the valid blocks
-	if (last_valid_block + 1 == wp_block)
+	/*
+	 * The write pointer matches with the valid blocks or
+	 * already points to the end of the zone.
+	 */
+	if ((last_valid_block + 1 == wp_block) ||
+			(zone->wp == zone->start + zone->len))
 		return 0;
 
 	if (last_valid_block + 1 == zone_block) {
-- 
2.41.0.162.gfafddb0af9-goog