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: 13531360 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CCFEE1386AB; Thu, 25 Jan 2024 16:43:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706201010; cv=none; b=nqUaHi4gXKUVq/cbQ9jcwVY/hDLVEIjrB2BaYvjvAcWoStGmrq4tHrIK1N12hbBXicGQ0hhweAsSalyk451B3ekTPvoncvw6dOehKE9KO2MrlQtVwcDReH4Vfq+erfUcI2gnMXj8jUGUE19R8AvCPDVs/9dt2WYfNbERUYv3BpY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706201010; c=relaxed/simple; bh=iJY2JnHpfOobyLxdsi5Dz0+NbwyQF3jtod656QDsJqQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=CWBmwXrHq9tA6btUPDQDmOxhWjDIxBXKMk3qaZ6+J7slUl4XuF6sD85Jxgc2UQRNWe2ISN/HsW8CeEAiTRpqW0Hsf/Yv/lGXX9dvnpj5uB6YfXya8sHJP984qGYFLXQo3GfSOS9eQVJWQyHHvJ2Tc8QdUfnEn5Pxdiv7TV3h12s= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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",