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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id E1B16C25B07 for ; Tue, 9 Aug 2022 17:19:12 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 09BF58E0007; Tue, 9 Aug 2022 13:19:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 70C298E000F; Tue, 9 Aug 2022 13:19:03 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id F1C588E000B; Tue, 9 Aug 2022 13:19:02 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 93BF18E0003 for ; Tue, 9 Aug 2022 13:19:02 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 70DC7A043A for ; Tue, 9 Aug 2022 17:19:02 +0000 (UTC) X-FDA: 79780714524.01.68A1B39 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf20.hostedemail.com (Postfix) with ESMTP id 088A51C0061 for ; Tue, 9 Aug 2022 17:19:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=J6kB0dKTp7FRUBi58f6PrXsNSoskdLY9MiGNkU4TYTI=; b=wQq7Wi2nb2azj0g0qmxqn0ijpY sVPK6sYGLUkeEom9wvC+nLvbN3/gVN3lwhrJZB0lORTBKMXcUG44PYCCLi0CGIAALGY2ztz+/QjKS XKqpo6NBHDbo/I+HeoprE2M+syKa+bLJPm6ASkP+9Q28HbEP3Enm8x7fFo7znfDl4OIcqbCsq1HVj 5QR11TA8F+NklUsosTHIDhiRSJ6vb/M8eJ+ODpRyLzjPyMdBXJr6ucf0e2Vbdt1WtBtcUmi2PmVWj eoQw9cviNCFWfte0fBpp9vQOCBpMa7Da7awlMEdh7CuH3et0+QBqe3wDZKi+8rGf4dCw6W5DPOb/E XpqdRXIA==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1oLSsc-00FdEj-L2; Tue, 09 Aug 2022 17:18:58 +0000 From: "Matthew Wilcox (Oracle)" To: linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" Subject: [PATCH v2 01/16] mm/page_alloc: Cache page_zone() result in free_unref_page() Date: Tue, 9 Aug 2022 18:18:39 +0100 Message-Id: <20220809171854.3725722-2-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220809171854.3725722-1-willy@infradead.org> References: <20220809171854.3725722-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1660065542; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=J6kB0dKTp7FRUBi58f6PrXsNSoskdLY9MiGNkU4TYTI=; b=0AYODssPg7uAFELsTpzG0ZN9wpUy29v4GaorLXAQEkTsywMQYVbyvCU/Kjc3+irw1+aAtr VyECxC4vFOHpg7N3fsS6D6tjiMMhV82P5Vg+uZJrFaIUu6mQP/xH/iTnKytXYNDe8UW3qD s3EUTI0UKQbgdxKcXz60Cq+3LYcSz2s= ARC-Authentication-Results: i=1; imf20.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=wQq7Wi2n; dmarc=none; spf=none (imf20.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1660065542; a=rsa-sha256; cv=none; b=aFv+KMUtaPant9gKce2liSzNkBOeEmwvm/REnC4DNQjfwg0pdqo30MFUG/EvZr/ia+Cfnl ouA87a23mIpWSG3MvXYk6xFH5cTqQmiMCh2VEDByu2/YdDktB4PgiZL9j4DEhIPRiGPhuw VBQVY6wZGfyQ7prb6rY0Ph0Et/8ufwg= X-Rspamd-Queue-Id: 088A51C0061 X-Rspamd-Server: rspam03 X-Rspam-User: Authentication-Results: imf20.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=wQq7Wi2n; dmarc=none; spf=none (imf20.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org X-Stat-Signature: 1878yjtj374jfyx5q5ttci93sobw3mqh X-HE-Tag: 1660065541-608760 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Save 17 bytes of text by calculating page_zone() once instead of twice. Signed-off-by: Matthew Wilcox (Oracle) --- mm/page_alloc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e5486d47406e..2745865a57c5 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3483,16 +3483,16 @@ void free_unref_page(struct page *page, unsigned int order) * areas back if necessary. Otherwise, we may have to free * excessively into the page allocator */ + zone = page_zone(page); migratetype = get_pcppage_migratetype(page); if (unlikely(migratetype >= MIGRATE_PCPTYPES)) { if (unlikely(is_migrate_isolate(migratetype))) { - free_one_page(page_zone(page), page, pfn, order, migratetype, FPI_NONE); + free_one_page(zone, page, pfn, order, migratetype, FPI_NONE); return; } migratetype = MIGRATE_MOVABLE; } - zone = page_zone(page); pcp_trylock_prepare(UP_flags); pcp = pcp_spin_trylock_irqsave(zone->per_cpu_pageset, flags); if (pcp) { -- 2.35.1