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Thu, 29 Feb 2024 06:26:56 -0800 Received: from pek-lpd-ccm6.wrs.com (147.11.1.11) by ala-exchng01.corp.ad.wrs.com (147.11.82.252) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35 via Frontend Transport; Thu, 29 Feb 2024 06:26:52 -0800 From: Xiongwei Song To: , , , , CC: , , , , , , , , , Subject: [PATCH RESEND 1/2] cgroup/cpuset: Remove cpuset_do_slab_mem_spread() Date: Thu, 29 Feb 2024 22:26:44 +0800 Message-ID: <20240229142645.1327831-1-xiongwei.song@windriver.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-GUID: RTU9lNN_H_WsqePD3YmqpxzzdWiWbidU X-Proofpoint-ORIG-GUID: RTU9lNN_H_WsqePD3YmqpxzzdWiWbidU X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-29_02,2024-02-29_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 mlxlogscore=999 malwarescore=0 priorityscore=1501 impostorscore=0 bulkscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 clxscore=1015 phishscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2402120000 definitions=main-2402290111 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792243482377533199 X-GMAIL-MSGID: 1792244398359308327 The SLAB allocator has been removed sine 6.8-rc1 [1], so there is no user with SLAB_MEM_SPREAD and cpuset_do_slab_mem_spread(). Then SLAB_MEM_SPREAD is marked as unused by [2]. Here we can remove cpuset_do_slab_mem_spread(). For more details, please check [3]. [1] https://lore.kernel.org/linux-mm/20231120-slab-remove-slab-v2-0-9c9c70177183@suse.cz/ [2] https://lore.kernel.org/linux-kernel/20240223-slab-cleanup-flags-v2-0-02f1753e8303@suse.cz/T/ [3] https://lore.kernel.org/lkml/32bc1403-49da-445a-8c00-9686a3b0d6a3@redhat.com/T/#mf14b838c5e0e77f4756d436bac3d8c0447ea4350 Signed-off-by: Xiongwei Song --- Sorry, I made a mistake with linux-mm list. Correct linux-mmc to linux-mm. --- --- include/linux/cpuset.h | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index 875d12598bd2..0ce6ff0d9c9a 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -121,11 +121,6 @@ static inline int cpuset_do_page_mem_spread(void) return task_spread_page(current); } -static inline int cpuset_do_slab_mem_spread(void) -{ - return task_spread_slab(current); -} - extern bool current_cpuset_is_being_rebound(void); extern void rebuild_sched_domains(void); @@ -264,11 +259,6 @@ static inline int cpuset_do_page_mem_spread(void) return 0; } -static inline int cpuset_do_slab_mem_spread(void) -{ - return 0; -} - static inline bool current_cpuset_is_being_rebound(void) { return false; From patchwork Thu Feb 29 14:26:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiongwei Song X-Patchwork-Id: 208390 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:2097:b0:108:e6aa:91d0 with SMTP id gs23csp433801dyb; Thu, 29 Feb 2024 06:28:44 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCXtwsoZWDRmgrhX0cuEDxn/u+T5C9UecKXE3io0B5NBgPRO5CeHl4BRK3Zx2D7CxjQFY4uIM6TY2+JvzfeW6kj5K6rw2g== X-Google-Smtp-Source: AGHT+IFaiAzE/KtVQU/BTjETVp9VQZZcvhbp/AIXxXAh5DBfBIE1WCMF2yhFjWBs102H8am+A2i2 X-Received: by 2002:a05:6808:17a3:b0:3c1:b146:d9e5 with SMTP id bg35-20020a05680817a300b003c1b146d9e5mr2241384oib.36.1709216923890; Thu, 29 Feb 2024 06:28:43 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1709216923; cv=pass; d=google.com; s=arc-20160816; b=N42+WYBoq7mnNuK6sroCCD5kwl9KoZxJlcUj+N20hW8WpwUoEYcPp5sfTnvP0VRbNf tDwlsGsAX1RqbP76GQeCuva8wkOHd4+6YX13iju0W+VmqWl7zwSrM1qIenK7FL3j3++C HYKciBh7YLNyzYwFISD2IJ7EpXSUrANwAF93c18zrJWMp3eVdZuXn5YF2bvqCehMbx9k HGjvJnDs++f/lrnKNOGY7mrO3vaA90gkm5VCc1WQ/+abEpHAaMmSaFiUDnWMyOpILrkF K8NU/lXXkF+WOj8A/TNZNsA1nXQJsT+pF0dan9S4lEmYrGybItpT/GZYvkd+yJ1OKA+X GyYQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=ZccVJUwzuY4xwuefFguz80ZL05Yed79XfC8Oc40ToN0=; fh=SDdXSCmKFhdK7CayQX6dl9r4bpAeveKs74FAnGnCk7A=; b=Tg7PEZjYLEMEXfp1vL5ZZnFJ5a9dX6rdFx5mo9qxRb4hdGHBHOpnAekyfd6rTWt6iA +MangnIcd9iTO79nLbSO7ZW6gcYJ3LSGv2t3EC6Imr4WYKjaUQrq1wLf7ZU/aDEWbH5c nxEIUIQ5cKFDXR08UU+YuDtQf1eLg2Tb7uoPuFqCh44LmRL7rdfJefpwXjhljZS/QAnT +B9G5KqpT9u4bbwIgZRDriFSqFkLIl9bvEGQAZgUuZrpunHNAQBENDppzKzyOCbHEX7o jNmocbk9KjWrq0CORpCvdmZElDQpuA/Y9heuRtNcCzOCTdxNkJHpoi3Lw1JI9PdMO/Oe +e9w==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@windriver.com header.s=PPS06212021 header.b=OODUZKCM; arc=pass (i=1 spf=pass spfdomain=windriver.com dkim=pass dkdomain=windriver.com dmarc=pass fromdomain=windriver.com); spf=pass (google.com: domain of linux-kernel+bounces-86843-ouuuleilei=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-86843-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=windriver.com Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. 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Thu, 29 Feb 2024 06:27:00 -0800 Received: from pek-lpd-ccm6.wrs.com (147.11.1.11) by ala-exchng01.corp.ad.wrs.com (147.11.82.252) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35 via Frontend Transport; Thu, 29 Feb 2024 06:26:56 -0800 From: Xiongwei Song To: , , , , CC: , , , , , , , , , Subject: [PATCH RESEND 2/2] cgroup/cpuset: Mark memory_spread_slab as obsolete Date: Thu, 29 Feb 2024 22:26:45 +0800 Message-ID: <20240229142645.1327831-2-xiongwei.song@windriver.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240229142645.1327831-1-xiongwei.song@windriver.com> References: <20240229142645.1327831-1-xiongwei.song@windriver.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-ORIG-GUID: musNlEUIeLC4UiknxofRDHvGthDzMcmt X-Proofpoint-GUID: musNlEUIeLC4UiknxofRDHvGthDzMcmt X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-29_02,2024-02-29_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 priorityscore=1501 suspectscore=0 impostorscore=0 mlxscore=0 spamscore=0 adultscore=0 malwarescore=0 bulkscore=0 mlxlogscore=985 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2402120000 definitions=main-2402290111 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1792243845294756408 X-GMAIL-MSGID: 1792243845294756408 We've removed the SLAG allocator, cpuset_do_slab_mem_spread() and SLAB_MEM_SPREAD, memory_spread_slab is a no-op now. We can mark memory_spread_slab as obsolete in case someone still wants to use it after cpuset_do_slab_mem_spread() removed. For more details, please check [1]. [1] https://lore.kernel.org/lkml/32bc1403-49da-445a-8c00-9686a3b0d6a3@redhat.com/T/#m8e292e21b00f95a4bb8086371fa7387fa4ea8f60 Signed-off-by: Xiongwei Song --- Sorry, I made a mistake with linux-mm list. Correct linux-mmc to linux-mm. --- Documentation/admin-guide/cgroup-v1/cpusets.rst | 2 +- kernel/cgroup/cpuset.c | 3 +++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/Documentation/admin-guide/cgroup-v1/cpusets.rst b/Documentation/admin-guide/cgroup-v1/cpusets.rst index ae646d621a8a..88d0e7fa2ee0 100644 --- a/Documentation/admin-guide/cgroup-v1/cpusets.rst +++ b/Documentation/admin-guide/cgroup-v1/cpusets.rst @@ -179,7 +179,7 @@ files describing that cpuset: - cpuset.mem_hardwall flag: is memory allocation hardwalled - cpuset.memory_pressure: measure of how much paging pressure in cpuset - cpuset.memory_spread_page flag: if set, spread page cache evenly on allowed nodes - - cpuset.memory_spread_slab flag: if set, spread slab cache evenly on allowed nodes + - cpuset.memory_spread_slab flag: IT'S OBSOLETE. Please don't use it anymore - cpuset.sched_load_balance flag: if set, load balance within CPUs on that cpuset - cpuset.sched_relax_domain_level: the searching range when migrating tasks diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index ba36c073304a..728d06fe9382 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -3897,6 +3897,9 @@ static struct cftype legacy_files[] = { }, { + /* It's obsolete. Please don't use it anymore. We will remove it + * in the future. + */ .name = "memory_spread_slab", .read_u64 = cpuset_read_u64, .write_u64 = cpuset_write_u64,