From nobody Sun Feb 8 12:37:11 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 63E322857E1; Tue, 6 May 2025 16:48:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746550097; cv=none; b=HzBt6KVuJme/CRQDiq7gUdGji/ALvyAcVlvzjpeqbHOiR8ugdQZNt/TAFh4znkfN4bMhNc9fhipQaKSCAonEXXEORD9tUKFkdAk2qb5udVpqxGWICG/cGmmJqSa5QOJsWAKR5Ucjqvz6U81hhchKyCsviJOrugdSpHZ7A+/U1ew= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746550097; c=relaxed/simple; bh=HSdv283f+P99zUV0yE0dYL7wNhVhUAdWxElvJ/afTp0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=naENiVNXaSx231N8zRD+plswm0ES6w3aBSJ/FQ60kSmW6j+FMtmnuk5vficfxkBOWTwxc13qCKB0+rOXTqXtFSHO4jvbblnmtg/JHYbQSzguyxi6GVGtWr1vFdzlguYdsCBnasUv5p13zE3oKoZSsUf3a8uyFaqzcYbxecKIOt4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=h77u3Pxu; arc=none smtp.client-ip=192.198.163.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="h77u3Pxu" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1746550096; x=1778086096; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HSdv283f+P99zUV0yE0dYL7wNhVhUAdWxElvJ/afTp0=; b=h77u3Pxu01OldGYcOoWXtwseVIjmPawE5YXqvw0iI4+S3SgzOxcFTW1Z YIcPo2aDoyPT0rSAzYlkOwVndiAG0yCg/88z5w5PGRu93zFmOa5+l6Thf 2kjCyoW7xOD5/zMI1F1w06W8tOkTMNxn6zXH8saUWBPffhSBt+uavKkQR YD4Df0ibf+3SgwuAub9qeevX2BIzf0Oa1qrn2nZWP0IZhULtsmtzdNgyJ iktql4wZymCb9DJcmIA4/xSnGIPLPnbIqcSc6yij5rH3Fl51ybUgNK6Ph ilIddNty8fXcVDooIALgci9lCY9SFX6xZSvqbb4D4sNzcuYXyc5ZGogyl A==; X-CSE-ConnectionGUID: 4xQGsFnnTqOhInleiPpwCw== X-CSE-MsgGUID: bbChFpHsRwizp82+an2lNw== X-IronPort-AV: E=McAfee;i="6700,10204,11425"; a="59595274" X-IronPort-AV: E=Sophos;i="6.15,266,1739865600"; d="scan'208";a="59595274" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 May 2025 09:48:16 -0700 X-CSE-ConnectionGUID: kYvKpvcdQwaiD2Yl5RvFXQ== X-CSE-MsgGUID: pDpv7dLlQWSnDJilYdxbwQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,266,1739865600"; d="scan'208";a="135674866" Received: from kanliang-dev.jf.intel.com ([10.165.154.102]) by fmviesa007.fm.intel.com with ESMTP; 06 May 2025 09:48:15 -0700 From: kan.liang@linux.intel.com To: peterz@infradead.org, mingo@redhat.com, namhyung@kernel.org, irogers@google.com, mark.rutland@arm.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: eranian@google.com, ctshao@google.com, tmricht@linux.ibm.com, Kan Liang Subject: [RFC PATCH 06/15] s390/perf: Remove driver-specific throttle support Date: Tue, 6 May 2025 09:47:31 -0700 Message-Id: <20250506164740.1317237-7-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20250506164740.1317237-1-kan.liang@linux.intel.com> References: <20250506164740.1317237-1-kan.liang@linux.intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Kan Liang The throttle support has been added in the generic code. Remove the driver-specific throttle support. Besides the throttle, perf_event_overflow may return true because of event_limit. It already does an inatomic event disable. The pmu->stop is not required either. Signed-off-by: Kan Liang Cc: Thomas Richter --- arch/s390/kernel/perf_cpum_cf.c | 2 -- arch/s390/kernel/perf_cpum_sf.c | 5 +---- 2 files changed, 1 insertion(+), 6 deletions(-) diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_c= f.c index e657fad7e376..6a262e198e35 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -980,8 +980,6 @@ static int cfdiag_push_sample(struct perf_event *event, } =20 overflow =3D perf_event_overflow(event, &data, ®s); - if (overflow) - event->pmu->stop(event, 0); =20 perf_event_update_userpage(event); return overflow; diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_s= f.c index ad22799d8a7d..91469401f2c9 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -1072,10 +1072,7 @@ static int perf_push_sample(struct perf_event *event, overflow =3D 0; if (perf_event_exclude(event, ®s, sde_regs)) goto out; - if (perf_event_overflow(event, &data, ®s)) { - overflow =3D 1; - event->pmu->stop(event, 0); - } + overflow =3D perf_event_overflow(event, &data, ®s); perf_event_update_userpage(event); out: return overflow; --=20 2.38.1