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[198.145.29.99]) by mx.google.com with ESMTPS id g5si12085961pgq.486.2019.03.24.17.38.41 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 24 Mar 2019 17:38:41 -0700 (PDT) Received-SPF: pass (google.com: domain of sashal@kernel.org designates 198.145.29.99 as permitted sender) client-ip=198.145.29.99; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=LvbuDSLe; spf=pass (google.com: domain of sashal@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=sashal@kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from localhost (unknown [23.100.24.84]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 503582148D; Mon, 25 Mar 2019 00:38:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1553474321; bh=rHF4u6Lyit+LBq8dwED/INYcQiWxbAi7EuxMwg3Yvow=; h=Date:From:To:To:To:Cc:Cc:Cc:Cc:Cc:Cc:Cc:Cc:Subject:In-Reply-To: References:From; b=LvbuDSLeT1Z7Fj/GKiR/xpIn1ufBUjmyvUmW5Q8SvLRu0iAgCBQiF5S8QokFIO51K J0wUZRCNJfh9N9bk4frtNtCJst4SIiKgyl+uMxHG08BR9juha9ejK6pUoiOq8CW8H5 6B1UVAd5RJbbgVzCFaUILbwTtuVT2PaiHciRK/lk= Date: Mon, 25 Mar 2019 00:38:40 +0000 From: Sasha Levin To: Sasha Levin To: Laurent Dufour To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: stable@vger.kernel.org, Christoph Lameter , Cc: stable@vger.kernel.org Cc: Christoph Lameter Cc: Pekka Enberg Cc: David Rientjes Cc: Joonsoo Kim Cc: Andrew Morton Cc: stable@vger.kernel.org Subject: Re: [PATCH] mm/slab: protect cache_reap() against CPU and memory hot plug operations In-Reply-To: <20190311191701.24325-1-ldufour@linux.ibm.com> References: <20190311191701.24325-1-ldufour@linux.ibm.com> Message-Id: <20190325003841.503582148D@mail.kernel.org> 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: Hi, [This is an automated email] This commit has been processed because it contains a -stable tag. The stable tag indicates that it's relevant for the following trees: all The bot has tested the following trees: v5.0.3, v4.19.30, v4.14.107, v4.9.164, v4.4.176, v3.18.136. v5.0.3: Build OK! v4.19.30: Build OK! v4.14.107: Build OK! v4.9.164: Build OK! v4.4.176: Failed to apply! Possible dependencies: 27590dc17b34 ("hrtimer: Convert to hotplug state machine") 31487f8328f2 ("smp/cfd: Convert core to hotplug state machine") 512089d98457 ("perf/x86/intel/rapl: Clean up the printk output") 55f2890f0726 ("perf/x86/intel/rapl: Add proper error handling") 57ecde42cc74 ("powerpc/perf: Convert book3s notifier to state machine callbacks") 6731d4f12315 ("slab: Convert to hotplug state machine") 6b2c28471de5 ("x86/x2apic: Convert to CPU hotplug state machine") 7162b8fea630 ("perf/x86/intel/rapl: Refactor the code some more") 75c7003fbf41 ("perf/x86/intel/rapl: Calculate timing once") 7ee681b25284 ("workqueue: Convert to state machine callbacks") 8a6d2f8f73ca ("perf/x86/intel/rapl: Utilize event->pmu_private") 8b5b773d6245 ("perf/x86/intel/rapl: Convert to hotplug state machine") 9de8d686955b ("perf/x86/intel/rapl: Convert it to a per package facility") a208749c6426 ("perf/x86/intel/rapl: Make PMU lock raw") a409f5ee2937 ("blackfin/perf: Convert hotplug notifier to state machine") b8b3319a471b ("perf/x86/intel/rapl: Sanitize the quirk handling") e3cfce17d309 ("sh/perf: Convert the hotplug notifiers to state machine callbacks") e6d4989a9ad1 ("relayfs: Convert to hotplug state machine") e722d8daafb9 ("profile: Convert to hotplug state machine") v3.18.136: Failed to apply! Possible dependencies: 13ca62b243f6 ("ACPI: Fix minor syntax issues in processor_core.c") 27590dc17b34 ("hrtimer: Convert to hotplug state machine") 31487f8328f2 ("smp/cfd: Convert core to hotplug state machine") 4daa832d9987 ("x86: Drop bogus __ref / __refdata annotations") 57ecde42cc74 ("powerpc/perf: Convert book3s notifier to state machine callbacks") 645523960102 ("perf/x86/intel/rapl: Fix energy counter measurements but supporing per domain energy units") 6731d4f12315 ("slab: Convert to hotplug state machine") 6b2c28471de5 ("x86/x2apic: Convert to CPU hotplug state machine") 7162b8fea630 ("perf/x86/intel/rapl: Refactor the code some more") 7ee681b25284 ("workqueue: Convert to state machine callbacks") 828aef376d7a ("ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID") 8b5b773d6245 ("perf/x86/intel/rapl: Convert to hotplug state machine") 9de8d686955b ("perf/x86/intel/rapl: Convert it to a per package facility") a409f5ee2937 ("blackfin/perf: Convert hotplug notifier to state machine") af8f3f514d19 ("ACPI / processor: Convert apic_id to phys_id to make it arch agnostic") d02dc27db0dc ("ACPI / processor: Rename acpi_(un)map_lsapic() to acpi_(un)map_cpu()") d089f8e97d37 ("x86: fix up obsolete cpu function usage.") e3cfce17d309 ("sh/perf: Convert the hotplug notifiers to state machine callbacks") e6d4989a9ad1 ("relayfs: Convert to hotplug state machine") e722d8daafb9 ("profile: Convert to hotplug state machine") ecf5636dcd59 ("ACPI: Add interfaces to parse IOAPIC ID for IOAPIC hotplug") fdaf3a6539d6 ("x86: fix more deprecated cpu function usage.") How should we proceed with this patch? -- Thanks, Sasha