From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08A40C4167D for ; Mon, 7 Feb 2022 12:00:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1389546AbiBGLuF (ORCPT ); Mon, 7 Feb 2022 06:50:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46942 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1386708AbiBGLf1 (ORCPT ); Mon, 7 Feb 2022 06:35:27 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98DF5C043181 for ; Mon, 7 Feb 2022 03:35:26 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B9EB160C8E for ; Mon, 7 Feb 2022 11:35:25 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3CDECC340EB; Mon, 7 Feb 2022 11:35:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1644233725; bh=jZLAyDkcm7SOKN14XylKxKlWQccrek46mpzsx9OCDhs=; h=From:To:Cc:Subject:Date:From; b=ID1EqxfW2EdGuXZwBb7DswAU119M2mTz7pU57nNmDQNoklNsoAUwY0eyUH2r67RSo rUiKD+oOqU5aukGsrw8dWFh5SqKljzyjQxJFMyV+3LIaw3cPt0XUbrXK5EeVVVYaS3 QEGkz8BI1f1muPXovMlzD5m1TLAQEcopQQrC5uC+y877TLNPMWrKsUgKRGKr78iUfv ADfTiV/K38j2uYXOFwYlx4NMP8YxcH9GLlPqIpq2Z0WcRYV1oA8zQJHRueceDfxfmG 5Bil1PHyNZLF5GoTJuLCF7fHX4SeBKzX6piKcm9AZO8Xn4LTGZJqNr0dEwjQxQ8og5 diP1cPiCVo0BQ== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu Subject: [PATCH] f2fs: avoid unneeded preflush during checkpoint() Date: Mon, 7 Feb 2022 19:35:16 +0800 Message-Id: <20220207113516.9489-1-chao@kernel.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org During checkpoint, we have committed preflush command via f2fs_flush_device_cache() to persist all metadata pages except last #2 CP pack page, so we don't need to commit another preflush command in commit_checkpoint(), remove it to avoid unneeded write cache overhead. Signed-off-by: Chao Yu --- fs/f2fs/data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 8c417864c66a..15ac18bbbc8e 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -598,7 +598,7 @@ static void __f2fs_submit_merged_write(struct f2fs_sb_info *sbi, io->fio.op = REQ_OP_WRITE; io->fio.op_flags = REQ_META | REQ_PRIO | REQ_SYNC; if (!test_opt(sbi, NOBARRIER)) - io->fio.op_flags |= REQ_PREFLUSH | REQ_FUA; + io->fio.op_flags |= REQ_FUA; } __submit_merged_bio(io); up_write(&io->io_rwsem); -- 2.32.0