linux-kernel - [PATCH] f2fs: fix to remove f2fs_bug_on in add_bio

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Date: Mon, 4 Mar 2024 19:43:22 +0800
From: Zhiguo Niu <zhiguo.niu@...soc.com>
To: <jaegeuk@...nel.org>, <chao@...nel.org>
CC: <linux-f2fs-devel@...ts.sourceforge.net>, <linux-kernel@...r.kernel.org>,
        <niuzhiguo84@...il.com>, <zhiguo.niu@...soc.com>, <ke.wang@...soc.com>,
        <hongyu.jin@...soc.com>
Subject: [PATCH] f2fs: fix to remove f2fs_bug_on in add_bio_entry

add_bio_entry should not trigger system panic when bio_add_page fail,
fix to remove it.

Fixes: 0b20fcec8651 ("f2fs: cache global IPU bio")
Signed-off-by: Zhiguo Niu <zhiguo.niu@...soc.com>
---
 fs/f2fs/data.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index bd8674b..2fbbf8f 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -761,8 +761,10 @@ static void add_bio_entry(struct f2fs_sb_info *sbi, struct bio *bio,
 	be->bio = bio;
 	bio_get(bio);
 
-	if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE)
-		f2fs_bug_on(sbi, 1);
+	if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE) {
+		bio_put(bio);
+		return;
+	}
 
 	f2fs_down_write(&io->bio_list_lock);
 	list_add_tail(&be->list, &io->bio_list);
-- 
1.9.1