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 16873C19F2D for ; Tue, 9 Aug 2022 17:19:03 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7AA448E0006; Tue, 9 Aug 2022 13:19:02 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 707B28E0007; Tue, 9 Aug 2022 13:19:02 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5A71E8E0006; Tue, 9 Aug 2022 13:19:02 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 499418E0001 for ; Tue, 9 Aug 2022 13:19:02 -0400 (EDT) Received: from smtpin20.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 23DF214107B for ; Tue, 9 Aug 2022 17:19:02 +0000 (UTC) X-FDA: 79780714524.20.D375C9E Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf31.hostedemail.com (Postfix) with ESMTP id 032102015E for ; Tue, 9 Aug 2022 17:19:00 +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=Oq8f400bINRmiyZEQhnODVRdeiKjtWvCGZw7N/I+F/A=; b=n/rnByfuKU8ZBO9wAHrg+b/cbn PVXm/bGPdfcXlmuEawmM6Xihz1eFUiTEIA6YwKn3yUtrcwoS8DdJpPsABABPGrtYT95clLf0dSLTv zHc25ojV84IohDI+0fJBYVHcN0LaD0FuVXeBe8+V/d5PIx05ZEjpDsy4PLmAcdR2T4ZK/gE1P+pLM b8dr15IMdmjcPbuS1WNGhhSfl4bnB9ZiD5HF+667kK49aFKh3APkuK/lwhVTZh4MIUTfSWFFFUrZa y/u36GPXMUPtijfD+7J8F0MY7V7Nk0zF1YhUfH2nkodc+0viG+z8EnoJm3fT7qGWWs661rKgmEEEc 3BFMkE1A==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1oLSsd-00FdF0-3O; Tue, 09 Aug 2022 17:18:59 +0000 From: "Matthew Wilcox (Oracle)" To: linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" Subject: [PATCH v2 05/16] mm/page_alloc: Move set_page_refcounted() to callers of prep_new_page() Date: Tue, 9 Aug 2022 18:18:43 +0100 Message-Id: <20220809171854.3725722-6-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-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1660065541; a=rsa-sha256; cv=none; b=3T9IbG/QciI2rl4UpPXkewM2k74yTZTTGoDP0TvXKqWOvIHthhMBannIm9LUkFdaWv1MGN 7CY7ZjHvBcA+VNDyqAnFeeFgPJyV7Y7mFfo+n/2KqDlCz9tJgCKfSnYtgPEJ9piYFkH3hb 9likX5qTxyyls3F4OZDlOrKV2jYfBPI= ARC-Authentication-Results: i=1; imf31.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b="n/rnByfu"; spf=none (imf31.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1660065541; 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=Oq8f400bINRmiyZEQhnODVRdeiKjtWvCGZw7N/I+F/A=; b=DTDjlMpF1vqB83FAIeQSFl7ORf2uTz3G9urMKjsa8ZvYKkq0VaYkKegxKegNE/dVrW+uv3 ZaTAMA2BNI2MxjUP9hz1ljezqvoye5e49U/xvN0usDs9KvstOTiR6sMING6jXza8R8VnwQ BF3zO3UAW89hwaiPWXQhWIpZKlssTpI= X-Stat-Signature: d8tsn9a5xh3cnqtngee5p4tqi45joqxq X-Rspamd-Queue-Id: 032102015E Authentication-Results: imf31.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b="n/rnByfu"; spf=none (imf31.hostedemail.com: domain of willy@infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=willy@infradead.org; dmarc=none X-Rspam-User: X-Rspamd-Server: rspam01 X-HE-Tag: 1660065540-299360 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: In preparation for allocating frozen pages, stop initialising the page refcount in prep_new_page(). Signed-off-by: Matthew Wilcox (Oracle) --- mm/page_alloc.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d41b8c8f3135..9bc53001f56c 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2535,7 +2535,6 @@ static void prep_new_page(struct page *page, unsigned int order, gfp_t gfp_flags set_page_pfmemalloc(page); else clear_page_pfmemalloc(page); - set_page_refcounted(page); } /* @@ -4281,6 +4280,7 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int alloc_flags, gfp_mask, alloc_flags, ac->migratetype); if (page) { prep_new_page(page, order, gfp_mask, alloc_flags); + set_page_refcounted(page); /* * If this is a high-order atomic allocation then check @@ -4504,8 +4504,10 @@ __alloc_pages_direct_compact(gfp_t gfp_mask, unsigned int order, count_vm_event(COMPACTSTALL); /* Prep a captured page if available */ - if (page) + if (page) { prep_new_page(page, order, gfp_mask, alloc_flags); + set_page_refcounted(page); + } /* Try get a page from the freelist if available */ if (!page) @@ -5440,6 +5442,7 @@ unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid, nr_account++; prep_new_page(page, 0, gfp, 0); + set_page_refcounted(page); if (page_list) list_add(&page->lru, page_list); else -- 2.35.1