From patchwork Thu Jan 25 16:42:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Elisei X-Patchwork-Id: 13531389 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 961C7C47258 for ; Thu, 25 Jan 2024 16:45:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=8DVwAmrumDJ3PXS6Xxo4J3LvKFT0uBJwpsWTwztkwgw=; b=rlFDSqul4f5U+5 5WxgDAWIo0WbHMyCrPwWQd7sIb8PBCxmnmNHYoDy3qeeqLkCnlyqTrrTSW4IQYantpX+mku9fVEkG OgCOlt0RaMKzilkufpm0X8JtqEOYxX36sp5spadKnBEFb4dwnGrmreXnOnUzVjebfeByH2SvdIpPT nWPZ16xXimKkryvbFRCiO3xPA6EfRl4uPvbx3qqI2P0NMfQiEISIqkPExUgdAcv+P97HM+dSHivre P0zhlMOntFdDqPBnBoA1vJ5+Bq+W2wr3x6/CpTdEP/xi5IGXp1pYUVfsyRoeXapy3AUAZtDk31cXz owxskLby4Ggp2iKd9qrg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rT2qZ-00000000tHv-2ZJq; Thu, 25 Jan 2024 16:44:59 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rT2p6-00000000sDI-392g for linux-arm-kernel@lists.infradead.org; Thu, 25 Jan 2024 16:43:35 +0000 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 E9A0F1515; Thu, 25 Jan 2024 08:44:11 -0800 (PST) Received: from e121798.cable.virginm.net (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 053093F5A1; Thu, 25 Jan 2024 08:43:21 -0800 (PST) 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 v3 07/35] mm: cma: Add CMA_RELEASE_{SUCCESS,FAIL} events Date: Thu, 25 Jan 2024 16:42:28 +0000 Message-Id: <20240125164256.4147-8-alexandru.elisei@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240125164256.4147-1-alexandru.elisei@arm.com> References: <20240125164256.4147-1-alexandru.elisei@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240125_084329_265504_94A914C5 X-CRM114-Status: UNSURE ( 9.92 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Similar to the two events that relate to CMA allocations, add the CMA_RELEASE_SUCCESS and CMA_RELEASE_FAIL events that count when CMA pages are freed. Signed-off-by: Alexandru Elisei --- Changes since rfc v2: * New patch. include/linux/vm_event_item.h | 2 ++ mm/cma.c | 6 +++++- mm/vmstat.c | 2 ++ 3 files changed, 9 insertions(+), 1 deletion(-) diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 747943bc8cc2..aba5c5bf8127 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -83,6 +83,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, #ifdef CONFIG_CMA CMA_ALLOC_SUCCESS, CMA_ALLOC_FAIL, + CMA_RELEASE_SUCCESS, + CMA_RELEASE_FAIL, #endif UNEVICTABLE_PGCULLED, /* culled to noreclaim list */ UNEVICTABLE_PGSCANNED, /* scanned for reclaimability */ diff --git a/mm/cma.c b/mm/cma.c index dbf7fe8cb1bd..543bb6b3be8e 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -562,8 +562,10 @@ bool cma_release(struct cma *cma, const struct page *pages, { unsigned long pfn; - if (!cma_pages_valid(cma, pages, count)) + if (!cma_pages_valid(cma, pages, count)) { + count_vm_events(CMA_RELEASE_FAIL, count); return false; + } pr_debug("%s(page %p, count %lu)\n", __func__, (void *)pages, count); @@ -575,6 +577,8 @@ bool cma_release(struct cma *cma, const struct page *pages, cma_clear_bitmap(cma, pfn, count); trace_cma_release(cma->name, pfn, pages, count); + count_vm_events(CMA_RELEASE_SUCCESS, count); + return true; } diff --git a/mm/vmstat.c b/mm/vmstat.c index db79935e4a54..eebfd5c6c723 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1340,6 +1340,8 @@ const char * const vmstat_text[] = { #ifdef CONFIG_CMA "cma_alloc_success", "cma_alloc_fail", + "cma_release_success", + "cma_release_fail", #endif "unevictable_pgs_culled", "unevictable_pgs_scanned",