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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A436FC433FE for ; Mon, 27 Sep 2021 07:22:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8959560F46 for ; Mon, 27 Sep 2021 07:22:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233225AbhI0HYP (ORCPT ); Mon, 27 Sep 2021 03:24:15 -0400 Received: from smtp-out2.suse.de ([195.135.220.29]:56812 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233227AbhI0HYH (ORCPT ); Mon, 27 Sep 2021 03:24:07 -0400 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 0CB7E20090 for ; Mon, 27 Sep 2021 07:22:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1632727349; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TX/fmlKtoAcVRGx6klxNr1bFg2WTHQBsa7MDpT3lZLU=; b=ikDoA7HCrgY3/wKZMKTVKFX6EG7Gijnp1y/7SlHqfmgu5+8gcEnS4LiNewYFLAA765Lbrx TeufEy8izb37laPDp/wPfAUE9NNU+48D/FpOEd6UqgclBDrmKrxZaEqMFjRF9hm74fQMoP bNZpckuFmLFEKyazRtKLmzkaDLvltp4= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 65F3813A1E for ; Mon, 27 Sep 2021 07:22:28 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id QI/JDDRxUWEVLAAAMHmgww (envelope-from ) for ; Mon, 27 Sep 2021 07:22:28 +0000 From: Qu Wenruo To: linux-btrfs@vger.kernel.org Subject: [PATCH v3 02/26] btrfs: remove unnecessary parameter @delalloc_start for writepage_delalloc() Date: Mon, 27 Sep 2021 15:21:44 +0800 Message-Id: <20210927072208.21634-3-wqu@suse.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210927072208.21634-1-wqu@suse.com> References: <20210927072208.21634-1-wqu@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org In function __extent_writepage() we always pass page start to @delalloc_start for writepage_delalloc(). Thus we don't really need @delalloc_start parameter as we can extract it from @page. So this patch will remove @delalloc_start parameter and make __extent_writepage() to declare @page_start and @page_end as const. Signed-off-by: Qu Wenruo --- fs/btrfs/extent_io.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index c56973f7daae..ba258b8329c9 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3768,10 +3768,11 @@ static void update_nr_written(struct writeback_control *wbc, */ static noinline_for_stack int writepage_delalloc(struct btrfs_inode *inode, struct page *page, struct writeback_control *wbc, - u64 delalloc_start, unsigned long *nr_written) + unsigned long *nr_written) { - u64 page_end = delalloc_start + PAGE_SIZE - 1; + u64 page_end = page_offset(page) + PAGE_SIZE - 1; bool found; + u64 delalloc_start = page_offset(page); u64 delalloc_to_write = 0; u64 delalloc_end = 0; int ret; @@ -4049,8 +4050,8 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, struct extent_page_data *epd) { struct inode *inode = page->mapping->host; - u64 start = page_offset(page); - u64 page_end = start + PAGE_SIZE - 1; + const u64 page_start = page_offset(page); + const u64 page_end = page_start + PAGE_SIZE - 1; int ret; int nr = 0; size_t pg_offset; @@ -4085,7 +4086,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, } if (!epd->extent_locked) { - ret = writepage_delalloc(BTRFS_I(inode), page, wbc, start, + ret = writepage_delalloc(BTRFS_I(inode), page, wbc, &nr_written); if (ret == 1) return 0; @@ -4136,7 +4137,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, * capable of that. */ if (PageError(page)) - end_extent_writepage(page, ret, start, page_end); + end_extent_writepage(page, ret, page_start, page_end); unlock_page(page); ASSERT(ret <= 0); return ret; -- 2.33.0