From nobody Sat May 30 12:37:34 2026 Received: from cstnet.cn (smtp21.cstnet.cn [159.226.251.21]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 97381372B56 for ; Fri, 8 May 2026 05:55:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778219741; cv=none; b=ri6XwkdaGJy/O8X/z6BLrqoAVO7YMB+B7qFT1gbWQ6F9yn90js4Gprrdg5gr9Kp6DeLIodd0SsR+G30efmJoWixSmTYoMYD71G3CpEzu8zNJ4+qWmD2d7pqdUYuLElWgyPOflIAnfPEEu59DMUCvNwhLFjCXyYaWvD1dMApE1vY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778219741; c=relaxed/simple; bh=ICW9/Y3cQnPecRtgdwYp3ltfRkhke2HwGDhVOt1IQHY=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=KpfIxH+q1FUnnyRSu5jUbW9xNq55WCX+02aGJC0i1PbElOH0xleMmgJqG/4rUYZgr9l4rnKo4N6AL+KOesB0TJp6u9+bIj0gxjo4NJy5t56tGPDdeJnpmVnqtxBWz+rDvmIhGGteM6Q3UhD1tPW/pzaS+umwWb9VFSfa/8lqxrw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=mails.ucas.ac.cn; spf=pass smtp.mailfrom=mails.ucas.ac.cn; arc=none smtp.client-ip=159.226.251.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=mails.ucas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mails.ucas.ac.cn Received: from fric.. (unknown [36.110.52.2]) by APP-01 (Coremail) with SMTP id qwCowAAXwWyrev1pmkaWDw--.15536S2; Fri, 08 May 2026 13:54:52 +0800 (CST) From: Jiakai Xu To: linux-kernel@vger.kernel.org Cc: "Tigran A . Aivazian" , Jiakai Xu Subject: [PATCH] bfs: mark buffer uptodate before mark_buffer_dirty in bfs_move_block Date: Fri, 8 May 2026 05:54:44 +0000 Message-Id: <20260508055444.2637458-1-xujiakai24@mails.ucas.ac.cn> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qwCowAAXwWyrev1pmkaWDw--.15536S2 X-Coremail-Antispam: 1UD129KBjvdXoW7XF1kXFykZryDKFykuFyDKFg_yoWDAFc_Wr Z2y34kWw1DZayay3Z8J390qFnYga1aqr1fKrW3Kr12y34UJayYqFWDGr18Grn7GayDGr95 Ar40qr4fGw15WjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbcAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_ Cr1l84ACjcxK6I8E87Iv67AKxVWxJr0_GcWl84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s 0DM2vYz4IE04k24VAvwVAKI4IrM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI 64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv67AKxVW8JVWxJw Am72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAG YxC7MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j6r4UMI8I3I0E5I8CrVAFwI 0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7AF67AKxVWUXVWUAwCIc40Y 0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE2Ix0cI8IcVCY1x0267AKxV WUJVW8JwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1l IxAIcVC2z280aVCY1x0267AKxVWUJVW8JbIYCTnIWIevJa73UjIFyTuYvjfUeEfoUUUUU X-CM-SenderInfo: 50xmxthndljko6pdxz3voxutnvoduhdfq/ Content-Type: text/plain; charset="utf-8" bfs_move_block() calls sb_getblk() to get a buffer for the destination block, then copies the data via memcpy(). However, it never calls set_buffer_uptodate() on the new buffer before calling mark_buffer_dirty(), which triggers: WARN_ON_ONCE(!buffer_uptodate(bh)) in mark_buffer_dirty(). Add the missing set_buffer_uptodate() call after copying the data, matching the pattern used by other filesystems (e.g., ext2) when initializing new buffers obtained via sb_getblk(). Signed-off-by: Jiakai Xu --- fs/bfs/file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/bfs/file.c b/fs/bfs/file.c index d33d6bde992b..0aeeeb3db8b2 100644 --- a/fs/bfs/file.c +++ b/fs/bfs/file.c @@ -41,6 +41,7 @@ static int bfs_move_block(unsigned long from, unsigned lo= ng to, return -EIO; new =3D sb_getblk(sb, to); memcpy(new->b_data, bh->b_data, bh->b_size); + set_buffer_uptodate(new); mark_buffer_dirty(new); bforget(bh); brelse(new); --=20 2.34.1