From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794063550; b=LwWf25wNDM/Z6QC4bfIR5+VFh180s+/fJV7gY+QkVPDOCY35nlXUHjgsrV6hCedrRKDw h1NXeQCfAnrvfzWRmpmECU837c45aTpjSQwsv8swynPNNcw3UOJtVAhUnQ2N8KDwls9pl cZfGZ36XtPwcD9w8b+ZuwMrlCyPhrvAH0LmTkmDvm+JVNdw3IPS8wfhwmQrwdZHgIambO l3kDV/lPT7iLZQAKiDuNwTwWjGeqJhXC/fTQqqf+WfESC9Q0HLDwAmLIEHFZHzvv+qY1G Gh+sdSuzwXVKLplRDpaK7O8MNNzhpkP4lePy6dd6drcRctIK6JqDMzkuG2bCN60CnMw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794063550; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=dDDY9k1pmSVkAtZSrhaGqXAeuzvvLp+S1tXKVL8xkWk=; b=vGl9pMp2IyNAUzSefjBpP2lDVaeT+/8pGT/5G99NFxTDAwgTrnpuJBegZCTtDALzxp5R B+aR17vRNjKRPcmEvFZpdWR71zNiwOJUh6JPiCU2tDqZ/JRr7p9ezvo0PLmZaKpVwgvUp x8gZbflfih6UEXqsekDl6l7pRr8UsIv0bcA7hRLIv0w1bLkL+nP93uCi7K03D+4ANYx4v 1FL/0o/wJzfv8kqf3m9vrpL7j9t2SWSOfMeg0+q5n+cRWXvS7drYk5Q9hNx1L0GOoF90j 43Czwl/7/HbhctYGb1VrNXXNs3MJM8jn2CPn/qpWkkM8KEtl5HQH0ylngucGr+vhfPA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=HiAZqLmV; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 68A3D608361F; Sat, 7 Nov 2026 14:59:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=HiAZqLmV Received: by smtp.kernel.org (Postfix) with ESMTPSA id 185B41F008A6; Sat, 7 Nov 2026 14:59:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794063550; bh=dDDY9k1pmSVkAtZSrhaGqXAeuzvvLp+S1tXKVL8xkWk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=HiAZqLmV/MLTL8TTsmNFZuf9tjElB6RYFu+bJ8Xpv2iOMndJqXF1lpV21KohRllqY T7bV626QAAbtbRZ5kt2HAgjndJildiaG0mtM10SyG2Zsxr8PlY5fGGf3ps3erGALEM /K7n7E7LwZWytkTJQdfp56d82P4CVkwidMlXGlmg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable@kernel.org, Seongjae Jeong , Chao Yu , Jaegeuk Kim , Sasha Levin Subject: [PATCH 6.18 647/869] f2fs: fix submit accounting for IPU writeback Date: Sat, 7 Nov 2026 08:55:29 -0500 Message-ID: <20261107134914.916898852@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134852.069646174@linuxfoundation.org> References: <20261107134852.069646174@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Seongjae Jeong [ Upstream commit 6d1f622b9c069378cdb83088be2b15a9b480b8a3 ] f2fs_write_cache_pages() uses the submitted count, which is set to fio.submitted in f2fs_write_single_data_page(), to update nwritten and decrement wbc->nr_to_write. In the OPU path, f2fs_submit_page_write() sets fio->submitted to 1. However, in the IPU path, fio->submitted is never set and remains zero. As a result, successful IPU writes are not accounted for. This can cause asynchronous writeback to continue beyond its budget. Set fio->submitted in f2fs_inplace_write_data() after a page is successfully merged into a bio or submitted, so that successful IPU writes are included in the writeback accounting. Cc: stable@kernel.org Fixes: d68f735b3bc9 ("f2fs: check io submission more precisely") Signed-off-by: Seongjae Jeong Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim Signed-off-by: Sasha Levin --- fs/f2fs/segment.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 23f9b76ee0145..46f14f891843c 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -4087,6 +4087,7 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio) else err = f2fs_submit_page_bio(fio); if (!err) { + fio->submitted = 1; f2fs_update_device_state(fio->sbi, fio->ino, fio->new_blkaddr, 1); f2fs_update_iostat(fio->sbi, fio_inode(fio), -- 2.53.0