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 X-Spam-Level: X-Spam-Status: No, score=-9.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E297C433E2 for ; Wed, 16 Sep 2020 18:34:34 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C058D20936 for ; Wed, 16 Sep 2020 18:34:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="gZypPG+e" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C058D20936 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 51F8D6B0078; Wed, 16 Sep 2020 14:34:33 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 4F5DD6B007B; Wed, 16 Sep 2020 14:34:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3E9AE6B007D; Wed, 16 Sep 2020 14:34:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0106.hostedemail.com [216.40.44.106]) by kanga.kvack.org (Postfix) with ESMTP id 20BF36B0078 for ; Wed, 16 Sep 2020 14:34:33 -0400 (EDT) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id C57BD12F4 for ; Wed, 16 Sep 2020 18:34:32 +0000 (UTC) X-FDA: 77269775184.04.straw33_0505dc82711c Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin04.hostedemail.com (Postfix) with ESMTP id 9FF318005A80 for ; Wed, 16 Sep 2020 18:34:32 +0000 (UTC) X-HE-Tag: straw33_0505dc82711c X-Filterd-Recvd-Size: 6003 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by imf33.hostedemail.com (Postfix) with ESMTP for ; Wed, 16 Sep 2020 18:34:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1600281271; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XwubkINL1Uor4z8FYu3b+W/GYdIzfTemmcEGbq8cpJ0=; b=gZypPG+erqxEeaGzEWs5ufq+bLTGhNCIQDtzOjeSAwROyYd7gJeoBO538DJmlhRl0U1e08 VC7OigXLY/EKam1y60afauBN6EJTiGxuOHKscel55ipxzovfvcBbW4AoU7yG2AwYQTOYfb LSPee+5FrnpFGD/FN82bfYLiHlbMIkg= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-163-iu1WFwNHM5mEmTQLNOBZaA-1; Wed, 16 Sep 2020 14:34:26 -0400 X-MC-Unique: iu1WFwNHM5mEmTQLNOBZaA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5321B801AC4; Wed, 16 Sep 2020 18:34:24 +0000 (UTC) Received: from t480s.redhat.com (ovpn-113-190.ams2.redhat.com [10.36.113.190]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0BCE119D61; Wed, 16 Sep 2020 18:34:20 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-hyperv@vger.kernel.org, xen-devel@lists.xenproject.org, linux-acpi@vger.kernel.org, Andrew Morton , David Hildenbrand , Alexander Duyck , Mel Gorman , Michal Hocko , Dave Hansen , Vlastimil Babka , Wei Yang , Oscar Salvador , Mike Rapoport Subject: [PATCH RFC 1/4] mm/page_alloc: convert "report" flag of __free_one_page() to a proper flag Date: Wed, 16 Sep 2020 20:34:08 +0200 Message-Id: <20200916183411.64756-2-david@redhat.com> In-Reply-To: <20200916183411.64756-1-david@redhat.com> References: <20200916183411.64756-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Rspamd-Queue-Id: 9FF318005A80 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 Content-Transfer-Encoding: quoted-printable 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: Let's prepare for additional flags and avoid long parameter lists of bool= s. Follow-up patches will also make use of the flags in __free_pages_ok(), however, I wasn't able to come up with a better name for the type - shoul= d be good enough for internal purposes. Cc: Andrew Morton Cc: Alexander Duyck Cc: Mel Gorman Cc: Michal Hocko Cc: Dave Hansen Cc: Vlastimil Babka Cc: Wei Yang Cc: Oscar Salvador Cc: Mike Rapoport Signed-off-by: David Hildenbrand --- mm/page_alloc.c | 28 ++++++++++++++++++++-------- 1 file changed, 20 insertions(+), 8 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6b699d273d6e..91cefb8157dd 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -77,6 +77,18 @@ #include "shuffle.h" #include "page_reporting.h" =20 +/* Free One Page flags: for internal, non-pcp variants of free_pages(). = */ +typedef int __bitwise fop_t; + +/* No special request */ +#define FOP_NONE ((__force fop_t)0) + +/* + * Skip free page reporting notification after buddy merging (will *not*= mark + * the page reported, only skip the notification). + */ +#define FOP_SKIP_REPORT_NOTIFY ((__force fop_t)BIT(0)) + /* prevent >1 _updater_ of zone percpu pageset ->high and ->batch fields= */ static DEFINE_MUTEX(pcp_batch_high_lock); #define MIN_PERCPU_PAGELIST_FRACTION (8) @@ -948,10 +960,9 @@ buddy_merge_likely(unsigned long pfn, unsigned long = buddy_pfn, * -- nyc */ =20 -static inline void __free_one_page(struct page *page, - unsigned long pfn, - struct zone *zone, unsigned int order, - int migratetype, bool report) +static inline void __free_one_page(struct page *page, unsigned long pfn, + struct zone *zone, unsigned int order, + int migratetype, fop_t fop_flags) { struct capture_control *capc =3D task_capc(zone); unsigned long buddy_pfn; @@ -1038,7 +1049,7 @@ static inline void __free_one_page(struct page *pag= e, add_to_free_list(page, zone, order, migratetype); =20 /* Notify page reporting subsystem of freed page */ - if (report) + if (!(fop_flags & FOP_SKIP_REPORT_NOTIFY)) page_reporting_notify_free(order); } =20 @@ -1368,7 +1379,7 @@ static void free_pcppages_bulk(struct zone *zone, i= nt count, if (unlikely(isolated_pageblocks)) mt =3D get_pageblock_migratetype(page); =20 - __free_one_page(page, page_to_pfn(page), zone, 0, mt, true); + __free_one_page(page, page_to_pfn(page), zone, 0, mt, FOP_NONE); trace_mm_page_pcpu_drain(page, 0, mt); } spin_unlock(&zone->lock); @@ -1384,7 +1395,7 @@ static void free_one_page(struct zone *zone, is_migrate_isolate(migratetype))) { migratetype =3D get_pfnblock_migratetype(page, pfn); } - __free_one_page(page, pfn, zone, order, migratetype, true); + __free_one_page(page, pfn, zone, order, migratetype, FOP_NONE); spin_unlock(&zone->lock); } =20 @@ -3277,7 +3288,8 @@ void __putback_isolated_page(struct page *page, uns= igned int order, int mt) lockdep_assert_held(&zone->lock); =20 /* Return isolated page to tail of freelist. */ - __free_one_page(page, page_to_pfn(page), zone, order, mt, false); + __free_one_page(page, page_to_pfn(page), zone, order, mt, + FOP_SKIP_REPORT_NOTIFY); } =20 /* --=20 2.26.2