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GET /api/1.1/patches/2220423/?format=api
{ "id": 2220423, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2220423/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260407083248.035227538@kernel.org/", "project": { "id": 26, "url": "http://patchwork.ozlabs.org/api/1.1/projects/26/?format=api", "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 }, "msgid": "<20260407083248.035227538@kernel.org>", "date": "2026-04-07T08:54:53", "name": "[08/12] alarmtimer: Convert posix timer functions to alarmtimer_start()", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "73aec6c01ee8b28a8182c9e47e17febdaf173d51", "submitter": { "id": 92397, "url": "http://patchwork.ozlabs.org/api/1.1/people/92397/?format=api", "name": "Thomas Gleixner", "email": "tglx@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260407083248.035227538@kernel.org/mbox/", "series": [ { "id": 498944, "url": "http://patchwork.ozlabs.org/api/1.1/series/498944/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netfilter-devel/list/?series=498944", "date": "2026-04-07T08:54:12", "name": "hrtimers: Prevent hrtimer interrupt starvation", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/498944/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2220423/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2220423/checks/", "tags": {}, "headers": { "Return-Path": "\n <netfilter-devel+bounces-11650-incoming=patchwork.ozlabs.org@vger.kernel.org>", "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 (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=uXYP2mPt;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; helo=tor.lore.kernel.org;\n envelope-from=netfilter-devel+bounces-11650-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"uXYP2mPt\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201" ], "Received": [ "from tor.lore.kernel.org (tor.lore.kernel.org [172.105.105.114])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fqg6V1dj4z1xtJ\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 07 Apr 2026 18:56:34 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 9E5303047BC2\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 7 Apr 2026 08:54:59 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 51DE239B94A;\n\tTue, 7 Apr 2026 08:54:57 +0000 (UTC)", "from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id CCF8739A7E5;\n\tTue, 7 Apr 2026 08:54:56 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id 93E21C2BCB1;\n\tTue, 7 Apr 2026 08:54:55 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775552096; cv=none;\n b=PbSKRZtuU1oTUQx8s71NRqLueEc+13VnHwgIglxoF3FZeDk0ekNMSgnnXJxxlAk2E1zayKURrLP3M1dbrZCPWk0Q0Y4+gTFTCPHObWTxyK/MdIzDcbbD9vJPIgL44OV5dS3sPXKrrrfp0Sq3SzeeYhfHfwCqzin+IL5L0LbNEkI=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775552096; c=relaxed/simple;\n\tbh=SGqb2Nn/k7ufjxJEqlr54Yc4uqryYsKlaFtjHcAKMnA=;\n\th=Date:Message-ID:From:To:Cc:Subject:References:MIME-Version:\n\t Content-Type;\n b=gA3b/DZGfSqtSo+kudHxZdPJlMnIaq1S/TlQuQXeNpUTyLRg8h9ADreqKG9MbqdgiAH0ZPKzNHciIGnQmjoNDw8Hrbs0N73E20ihuXF3IsQOlwhhan9o64mVvLjnFk2ZJlpRHbzOUBOs9pnmsioYF89yU4TcoF8Nt3PYC4K0kEs=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=uXYP2mPt; arc=none smtp.client-ip=10.30.226.201", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1775552096;\n\tbh=SGqb2Nn/k7ufjxJEqlr54Yc4uqryYsKlaFtjHcAKMnA=;\n\th=Date:From:To:Cc:Subject:References:From;\n\tb=uXYP2mPtISsacH9fy9EJuFy4Trw0qj4yNykTHl4pjDjZfkkniz6W2Dzi+hEQJahkJ\n\t uWOGIWvrO1JzKx15louDi4it6yg1tzfakFRXyb+QrDw8w6o+nPHNXtux4Kp+3I1tw7\n\t wJ4XkBnKJh76eUNHSKCDKV0Q4Eg0BvZcUkp6JSKh3DZp2YUSnWW1JGaA/vqrMkjHPp\n\t EDJcIaN8r0dYv4YQgqq8Qnt7l3a3o+Ldw1IVYvoMb02z9cKM0yOIweaF7LrfYR7QSW\n\t qBnkERgrjTO45WN+HI4XrB8Rh44jcY1s9O9VdRLTC2smXp5yXgKB1p7j+f4MEFsT90\n\t 0KIcOFpN6L1DA==", "Date": "Tue, 07 Apr 2026 10:54:53 +0200", "Message-ID": "<20260407083248.035227538@kernel.org>", "User-Agent": "quilt/0.68", "From": "Thomas Gleixner <tglx@kernel.org>", "To": "LKML <linux-kernel@vger.kernel.org>", "Cc": "John Stultz <jstultz@google.com>,\n Stephen Boyd <sboyd@kernel.org>,\n Calvin Owens <calvin@wbinvd.org>,\n Peter Zijlstra <peterz@infradead.org>,\n Anna-Maria Behnsen <anna-maria@linutronix.de>,\n Frederic Weisbecker <frederic@kernel.org>,\n Ingo Molnar <mingo@kernel.org>,\n Alexander Viro <viro@zeniv.linux.org.uk>,\n Christian Brauner <brauner@kernel.org>,\n Jan Kara <jack@suse.cz>,\n linux-fsdevel@vger.kernel.org,\n Sebastian Reichel <sre@kernel.org>,\n linux-pm@vger.kernel.org,\n Pablo Neira Ayuso <pablo@netfilter.org>,\n Florian Westphal <fw@strlen.de>,\n Phil Sutter <phil@nwl.cc>,\n netfilter-devel@vger.kernel.org,\n coreteam@netfilter.org", "Subject": "[patch 08/12] alarmtimer: Convert posix timer functions to\n alarmtimer_start()", "References": "<20260407083219.478203185@kernel.org>", "Precedence": "bulk", "X-Mailing-List": "netfilter-devel@vger.kernel.org", "List-Id": "<netfilter-devel.vger.kernel.org>", "List-Subscribe": "<mailto:netfilter-devel+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:netfilter-devel+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8" }, "content": "Use the new alarmtimer_start() for arming and rearming posix interval\ntimers and for clock_nanosleep() so that already expired timers do not go\nthrough the full timer interrupt cycle.\n\nSigned-off-by: Thomas Gleixner <tglx@kernel.org>\nCc: John Stultz <jstultz@google.com>\nCc: Stephen Boyd <sboyd@kernel.org>\n---\n kernel/time/alarmtimer.c | 20 +++++++++++++-------\n 1 file changed, 13 insertions(+), 7 deletions(-)", "diff": "--- a/kernel/time/alarmtimer.c\n+++ b/kernel/time/alarmtimer.c\n@@ -556,8 +556,7 @@ static bool alarm_timer_rearm(struct k_i\n \tstruct alarm *alarm = &timr->it.alarm.alarmtimer;\n \n \ttimr->it_overrun += alarm_forward_now(alarm, timr->it_interval);\n-\talarm_start(alarm, alarm->node.expires);\n-\treturn true;\n+\treturn alarmtimer_start(alarm, alarm->node.expires, false);\n }\n \n /**\n@@ -621,11 +620,16 @@ static bool alarm_timer_arm(struct k_iti\n \n \tif (!absolute)\n \t\texpires = ktime_add_safe(expires, base->get_ktime());\n-\tif (sigev_none)\n+\n+\t/*\n+\t * sigev_none needs to update the expires value and pretend\n+\t * that the timer is queued\n+\t */\n+\tif (sigev_none) {\n \t\talarm->node.expires = expires;\n-\telse\n-\t\talarm_start(&timr->it.alarm.alarmtimer, expires);\n-\treturn true;\n+\t\treturn true;\n+\t}\n+\treturn alarmtimer_start(&timr->it.alarm.alarmtimer, expires, false);\n }\n \n /**\n@@ -732,7 +736,9 @@ static int alarmtimer_do_nsleep(struct a\n \talarm->data = (void *)current;\n \tdo {\n \t\tset_current_state(TASK_INTERRUPTIBLE);\n-\t\talarm_start(alarm, absexp);\n+\t\tif (!alarmtimer_start(alarm, absexp, false))\n+\t\t\talarm->data = NULL;\n+\n \t\tif (likely(alarm->data))\n \t\t\tschedule();\n \n", "prefixes": [ "08/12" ] }