{"id":2215436,"url":"http://patchwork.ozlabs.org/api/patches/2215436/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260324151827.2006656-2-longman@redhat.com/","project":{"id":26,"url":"http://patchwork.ozlabs.org/api/projects/26/?format=json","name":"Netfilter Development","link_name":"netfilter-devel","list_id":"netfilter-devel.vger.kernel.org","list_email":"netfilter-devel@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260324151827.2006656-2-longman@redhat.com>","list_archive_url":null,"date":"2026-03-24T15:18:26","name":"[1/2] sched/isolation: Make HK_TYPE_KTHREAD an alias of HK_TYPE_DOMAIN","commit_ref":null,"pull_url":null,"state":"changes-requested","archived":true,"hash":"79b520081a3b9ee27ad2e4d67c7809f96ace3cc4","submitter":{"id":71281,"url":"http://patchwork.ozlabs.org/api/people/71281/?format=json","name":"Waiman Long","email":"longman@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260324151827.2006656-2-longman@redhat.com/mbox/","series":[{"id":497305,"url":"http://patchwork.ozlabs.org/api/series/497305/?format=json","web_url":"http://patchwork.ozlabs.org/project/netfilter-devel/list/?series=497305","date":"2026-03-24T15:18:25","name":"ipvs: Fix incorrect use of HK_TYPE_KTHREAD housekeeping cpumask","version":1,"mbox":"http://patchwork.ozlabs.org/series/497305/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2215436/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2215436/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","netfilter-devel@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=chu9seF0;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; 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c=relaxed/relaxed; d=redhat.com;\n\ts=mimecast20190719; t=1774365552;\n\th=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n\t to:to:cc:cc:mime-version:mime-version:\n\t content-transfer-encoding:content-transfer-encoding:\n\t in-reply-to:in-reply-to:references:references;\n\tbh=NM71jEPy1P0WHGHdPzJuToYXqWbTBefaY9NqYpg0IOU=;\n\tb=chu9seF0UM5HWcvKxFx+jsaWJQ9lKeUN/dTRDBwgOxIZirQPgCB/qU0kNYPKuERTLlUmW7\n\tYaqPeTyPIlc9XFVEzQ7KyMr79V6QUZDHtZ+gqvlWFh7eSZdxaJk/7mV+7Eg1fduFdIFElQ\n\ta4FgZjonDAidLTU+WH31CdopB8TBGEY=","X-MC-Unique":"M9C8THMbPsyL3eIxAPqsKA-1","X-Mimecast-MFC-AGG-ID":"M9C8THMbPsyL3eIxAPqsKA_1774365545","From":"Waiman Long ","To":"Simon Horman ,\n\tJulian Anastasov ,\n\t\"David S. Miller\" ,\n\tDavid Ahern ,\n\tEric Dumazet ,\n\tJakub Kicinski ,\n\tPaolo Abeni ,\n\tPablo Neira Ayuso ,\n\tFlorian Westphal ,\n\tPhil Sutter ,\n\tFrederic Weisbecker ,\n\tChen Ridong ,\n\tPhil Auld ","Cc":"linux-kernel@vger.kernel.org,\n\tnetdev@vger.kernel.org,\n\tlvs-devel@vger.kernel.org,\n\tnetfilter-devel@vger.kernel.org,\n\tcoreteam@netfilter.org,\n\tsheviks ,\n\tWaiman Long ","Subject":"[PATCH 1/2] sched/isolation: Make HK_TYPE_KTHREAD an alias of\n HK_TYPE_DOMAIN","Date":"Tue, 24 Mar 2026 11:18:26 -0400","Message-ID":"<20260324151827.2006656-2-longman@redhat.com>","In-Reply-To":"<20260324151827.2006656-1-longman@redhat.com>","References":"<20260324151827.2006656-1-longman@redhat.com>","Precedence":"bulk","X-Mailing-List":"netfilter-devel@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.93"},"content":"Since commit 041ee6f3727a (\"kthread: Rely on HK_TYPE_DOMAIN for preferred\naffinity management\"), kthreads default to use the HK_TYPE_DOMAIN\ncpumask. IOW, it is no longer affected by the setting of the nohz_full\nboot kernel parameter.\n\nThat means HK_TYPE_KTHREAD should now be an alias of HK_TYPE_DOMAIN\ninstead of HK_TYPE_KERNEL_NOISE to correctly reflect the current kthread\nbehavior. Make the change as HK_TYPE_KTHREAD is still being used in\nsome networking code.\n\nFixes: 041ee6f3727a (\"kthread: Rely on HK_TYPE_DOMAIN for preferred affinity management\")\nSigned-off-by: Waiman Long \n---\n include/linux/sched/isolation.h | 6 +++++-\n 1 file changed, 5 insertions(+), 1 deletion(-)","diff":"diff --git a/include/linux/sched/isolation.h b/include/linux/sched/isolation.h\nindex dc3975ff1b2e..cf0fd03dd7a2 100644\n--- a/include/linux/sched/isolation.h\n+++ b/include/linux/sched/isolation.h\n@@ -20,6 +20,11 @@ enum hk_type {\n \tHK_TYPE_KERNEL_NOISE,\n \tHK_TYPE_MAX,\n \n+\t/*\n+\t * HK_TYPE_KTHREAD is now an alias of HK_TYPE_DOMAIN\n+\t */\n+\tHK_TYPE_KTHREAD = HK_TYPE_DOMAIN,\n+\n \t/*\n \t * The following housekeeping types are only set by the nohz_full\n \t * boot commandline option. So they can share the same value.\n@@ -29,7 +34,6 @@ enum hk_type {\n \tHK_TYPE_RCU = HK_TYPE_KERNEL_NOISE,\n \tHK_TYPE_MISC = HK_TYPE_KERNEL_NOISE,\n \tHK_TYPE_WQ = HK_TYPE_KERNEL_NOISE,\n-\tHK_TYPE_KTHREAD = HK_TYPE_KERNEL_NOISE\n };\n \n #ifdef CONFIG_CPU_ISOLATION\n","prefixes":["1/2"]}