From nobody Sun Feb 8 16:31:37 2026 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (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 E8AA0283FFA; Wed, 14 May 2025 15:14:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747235690; cv=none; b=igpA87xSGX5n2q5hPIChZ6PU8UMtJNCvbvq8aLOVKV02Vs7AIWlc9iKsqcdPcgA1k2UKURru7oePDHquHu/P57kXKrFv9pgEMQHp0ejBePiI6eUpX8mXrdIXeKLZDm/ayOZOsNbnEECIW7ywkTdLwYB/bkLvG9owwggnyGiN1lk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747235690; c=relaxed/simple; bh=L2nENQRMXr7cm7P8wvgZXQuelIQ1McOEGuf1n8wrLNc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=M24STAt0c0bsjwjPiBYA6QdrjkILkkTMfLUZGEM1Ft7dAEdfZIs3aS29Y/M/tzLsU3d+CGXaAODAvOWaQ0UKkPZf6IW8y2SD8T4PyE9hnCnTVs0pa8GRqHJ7pfovBZAdw3HvIQ9jXKPDqgmQkHKBz1pJE9NhZW13Ue4syPSd6Mo= 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=VwUfkSAi; arc=none smtp.client-ip=192.198.163.17 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="VwUfkSAi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1747235688; x=1778771688; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=L2nENQRMXr7cm7P8wvgZXQuelIQ1McOEGuf1n8wrLNc=; b=VwUfkSAiNWGNLDIyIFrgNr1Tfe0KLo2Q8+9linaeff38XkWtNjDbjL76 Z4m02f947RrfL0egx7x8PFJbbztPLu9WT99CfKwjPrgUqU8rKR/UDnsew C9dkwW1eyl67qPDRjxBoJw5BI+5ZWg08zQgGkRgTBG11ChIeY58ME3xBf E3BydHVcm+onYRqfnQrzDXeVOKawbapR6Tgu8X5rjx9ZKals4zgCVwVCv nGyD+yo6HfBRyyujUwtTka7SLwu4phXStAyT6SWe5jPikuRXMgMZxtIyj Usm9ICWDfqzFS73YUUY6bXJLhRe52omw4MtGtzKW6jDDMlXh/rXSTGOk7 w==; X-CSE-ConnectionGUID: 9aPlbFMYTM6iOgWY1XYODw== X-CSE-MsgGUID: busp4fLUStieOAFn3xRHOQ== X-IronPort-AV: E=McAfee;i="6700,10204,11433"; a="49072744" X-IronPort-AV: E=Sophos;i="6.15,288,1739865600"; d="scan'208";a="49072744" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 May 2025 08:14:45 -0700 X-CSE-ConnectionGUID: j1d1npWEQYK184NLh4CAxQ== X-CSE-MsgGUID: gYZgcIb6QBuZVSdGR/Edug== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,288,1739865600"; d="scan'208";a="142939167" Received: from kanliang-dev.jf.intel.com ([10.165.154.102]) by fmviesa005.fm.intel.com with ESMTP; 14 May 2025 08:14:45 -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 , linux-s390@vger.kernel.org Subject: [PATCH V2 06/15] s390/perf: Remove driver-specific throttle support Date: Wed, 14 May 2025 08:13:52 -0700 Message-Id: <20250514151401.2547932-7-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20250514151401.2547932-1-kan.liang@linux.intel.com> References: <20250514151401.2547932-1-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 Cc: linux-s390@vger.kernel.org Tested-by: 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