From patchwork Wed Aug 23 13:13:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Elisei X-Patchwork-Id: 13362318 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 95420EE4993 for ; Wed, 23 Aug 2023 13:15:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235575AbjHWNPb (ORCPT ); Wed, 23 Aug 2023 09:15:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235564AbjHWNPa (ORCPT ); Wed, 23 Aug 2023 09:15:30 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 72AA810E5; Wed, 23 Aug 2023 06:14:59 -0700 (PDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id AB0511596; Wed, 23 Aug 2023 06:15:39 -0700 (PDT) Received: from e121798.cable.virginm.net (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 756C53F740; Wed, 23 Aug 2023 06:14:53 -0700 (PDT) From: Alexandru Elisei To: catalin.marinas@arm.com, will@kernel.org, oliver.upton@linux.dev, maz@kernel.org, james.morse@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, arnd@arndb.de, akpm@linux-foundation.org, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, mhiramat@kernel.org, rppt@kernel.org, hughd@google.com Cc: pcc@google.com, steven.price@arm.com, anshuman.khandual@arm.com, vincenzo.frascino@arm.com, david@redhat.com, eugenis@google.com, kcc@google.com, hyesoo.yu@samsung.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH RFC 08/37] mm: compaction: Account for free metadata pages in __compact_finished() Date: Wed, 23 Aug 2023 14:13:21 +0100 Message-Id: <20230823131350.114942-9-alexandru.elisei@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230823131350.114942-1-alexandru.elisei@arm.com> References: <20230823131350.114942-1-alexandru.elisei@arm.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-kernel@vger.kernel.org __compact_finished() signals the end of compaction if a page of an order greater than or equal to the requested order if found on a free_area. When allocation of MIGRATE_METADATA pages is allowed, count the number of free metadata storage pages towards the request order. Signed-off-by: Alexandru Elisei --- mm/compaction.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/mm/compaction.c b/mm/compaction.c index dbc9f86b1934..f132c02b0655 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -2208,6 +2208,13 @@ static enum compact_result __compact_finished(struct compact_control *cc) if (migratetype == MIGRATE_MOVABLE && !free_area_empty(area, MIGRATE_CMA)) return COMPACT_SUCCESS; +#endif +#ifdef CONFIG_MEMORY_METADATA + if (metadata_storage_enabled() && + migratetype == MIGRATE_MOVABLE && + (cc->alloc_flags & ALLOC_FROM_METADATA) && + !free_area_empty(area, MIGRATE_METADATA)) + return COMPACT_SUCCESS; #endif /* * Job done if allocation would steal freepages from