From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 747CC46A61A for ; Fri, 2 Oct 2026 12:46:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790945181; cv=none; b=pK+GEQY82n+CcNqomYtDELhJOxB/64OSWMyZtl1wNeM50mKSvXuOneAYyPchfKFz66z8sT/ExmYt/d5PIhNSpBL3W9YYg4OJdWhXcJbxFKpglecVvPTHf3sXlRh0qgBrxrZOS07foFujbgkMUMuPXlRB2SX8IrTwbQCs0jlMkgc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790945181; c=relaxed/simple; bh=vpmbNHCj8AiW61gBA9TK7A4FEVWBhJ5jgjhYMuO2mjo=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=uDXuyWp3Gkxmzg1CxagFSu+/T1KI8V2cp893MJ5MSoZftQq+ICjhrKDwPSmub+wvAAWRTUXEfkCxqgQMKVXSV1ExV0+J+8j8V8iSuZ7pNAzw34vc4Iit8t0D64bu2WBJVyVUz1/bqtE9Nz1SLCnBcLaY6roHxyr6EaVXpcJvEpg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=Qqm0qUao; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=AxMIOaMm; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="Qqm0qUao"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="AxMIOaMm" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6929nYL3557425 for ; Fri, 2 Oct 2026 12:46:18 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= TJRKfKcudVdIXp7kbw1mzYEB8ftrNn95nsWIQz3ozyU=; b=Qqm0qUao8AqMrszC lwhBZ5MZPsdrBMukQGX0AE6n1C3g+JdMT+L69ecCi+z8vgxzN+PucBN9X9H1eckZ 5Ni+Di7soU3uUbWEZsP1z/+2XCwUbYTiDeif1g2bkDsN7CH4Jsm6GxJSQilhCWGB t3z7UDFi1ipJ2HAUKYap10UHYbXIVfZaYN8bn7VjWf28zynKDlYybBUz5d4Ye6S3 x+gGLMkrwNwGsejIOvm2Cd5X3+3E1iqbNwOTpkWZIObyuYq6/b5t1bf5oqSADRC8 Mz9+1s4G6TwRYCcZRORaW8HGil3tVOjqFbEc2txC+D07Hhf+SMoHhrhgm44fIXdv D1tVow== Received: from mail-pl1-f197.google.com (mail-pl1-f197.google.com [209.85.214.197]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4h1tbgby6w-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Fri, 02 Oct 2026 12:46:18 +0000 (GMT) Received: by mail-pl1-f197.google.com with SMTP id d9443c01a7336-2cfa4e4684bso126200355ad.2 for ; Fri, 02 Oct 2026 05:46:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1790945177; x=1791549977; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to :content-type; bh=TJRKfKcudVdIXp7kbw1mzYEB8ftrNn95nsWIQz3ozyU=; b=AxMIOaMmmPFZdYMYO5YhpLAu7ybh8Dv3EdqqCprS1SQ2dBw35gk2w9WyaCguOn3Cpv /uNuEWJak1QKwrPHK42tgLUTTewBt5QN7c6LSx0l8yeGAC5dJRMS2RRTegtOFc5jhl9i sqWw3I73bnhR+tFuhPAKKx+/0aqntE0WF10dA2vOgI+3qisFExK+3pqceo+mdcf0DjKW kZWq5qK881fKUXY/bbxsxWOSuY8l4WEtuaKOL34k9YzrNc8u2k9mwjsUUMnUYxM56uMQ hQHjbpPPDijqNC5Zz2vatq9bpX9rGBdQ3cjrTE/Q85YDhuwnnwgwXsvreVRRYoj0RpMQ uUfg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790945177; x=1791549977; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=TJRKfKcudVdIXp7kbw1mzYEB8ftrNn95nsWIQz3ozyU=; b=zG49C6lMOxr0uVpiBxCBeuzbg+h3RIUlMmrjLpca/T5rtZBTA3UwL6WyUwR0cSRhTm kxmPpSeByhFg5mlPVtkh+XmZV7JH+5nn1N29tkAym+/hW/min+fC6DpGbvvWdFOP7KGA F71T5YTOkrA5mo3vStyt6kq4DxN4NdH2uAbe3KvCG+c2AFL6VJRvQ//TmPHX5wNfWkYI 9d1ZLwIR0fyTVwfU/K7XXkO8/ADAXKU5+QdPW3m3wmTIRRKwqBtrpYizui5rNDQ9I/M/ trIC4dTaCB4j4qgrmeJ8Ptu5/TeoSLVLHlxHSIRZJ/RPTaEHqUpRu9JdhGhjB+AhObNg YUQA== X-Forwarded-Encrypted: i=1; AKwUvBxoa5XljOuG02i6jbUScmIiK1UgluZMee6j0vTjZaCrOC7nPdHEmnyj4wVl1TUD1DTgiHiTsZXlXVNYdpo=@vger.kernel.org X-Gm-Message-State: AFq9FYKr9fSxKvK65ADufVarAEppdyPwQqUveEe59wbbsf8KtlZdniTK KT3yr6QZxrw+RHPj3RdLJWtQLRZ4sWJexG0xK+5lG46wuziumQCM5AesPuNLb4CHx68fQ8STu3D QGeuZxqpi/1tG126c3+2T6E5CyNqIyhqYlbTzglvykbV5ArdzaGfj3W98IwXCPo/nfNo= X-Gm-Gg: AYBFou2j9F8na7R2IHqHyNwq9YLqcEhZYmZMStRGMLXBowLznyaFNGPIDa6XAq7KdDM 88FkgC4Odyvl1xOh1leBSFTPI4SDt5F3mM/Krxj0HJTUnkn9ZagTtCkeGcMCBDkBtWDEybPelr7 ouv2ATsfuLp1JoOJR2bwNb2hrNrUDnB6+gbwyIyZg0o6klRXbp8r7y9TK3W27v0KQrRcz1X+1JN e43JwQzHG2FuOf9HvyTPVStlDcqzswq2by4ZKZVx3z08MgviCErslJdzLv+mMWJKaZukdRAi5a5 fimT5xykZRhvP5/Ytv7xgFvaG+zqCxto15kRujy2O41M98U5waIIZr8l2mQ6H1Jb2hdQ+0uiXZA xUjF7htvLuPOSxQUvC3LHbHJSfBh4KR879UM4RAZIvc31yXdwWCXLh+ee2n8SbaQXg79XVQ== X-Received: by 2002:a17:902:ccd2:b0:2df:59f1:f304 with SMTP id d9443c01a7336-2e49b65e87bmr23206395ad.33.1790945177344; Fri, 02 Oct 2026 05:46:17 -0700 (PDT) X-Received: by 2002:a17:902:ccd2:b0:2df:59f1:f304 with SMTP id d9443c01a7336-2e49b65e87bmr23205955ad.33.1790945176740; Fri, 02 Oct 2026 05:46:16 -0700 (PDT) Received: from [10.133.33.14] (tpe-colo-wan-fw-bordernet.qualcomm.com. [103.229.16.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2e49f71c1d8sm7308885ad.70.2026.10.02.05.46.08 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 02 Oct 2026 05:46:15 -0700 (PDT) Message-ID: <4e218e26-19ac-4c05-94a8-c156952f4da0@oss.qualcomm.com> Date: Fri, 2 Oct 2026 20:46:05 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/3] cpufreq: Skip updates for unchanged resolved limits To: Christian Loehle , rafael@kernel.org Cc: zhenglifeng1@huawei.com, viresh.kumar@linaro.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, Mario Limonciello , K Prateek Nayak , Huang Rui , Perry Yuan , "Gautham R . Shenoy" , Vanshidhar Konda , Shubhang Kaushik , Pierre Gondois , Beata Michalska , Dietmar Eggemann , Ionela Voinescu , Sudeep Holla , Lukasz Luba , Jeremy Linton , Peter Zijlstra , jonathanh@nvidia.com, zhanjie9@hisilicon.com, Vincent Guittot , Jonathan Corbet , Shuah Khan , Randy Dunlap , zhongqiu.han@oss.qualcomm.com References: <20260929102957.2591657-1-christian.loehle@arm.com> <20260929102957.2591657-4-christian.loehle@arm.com> Content-Language: en-US From: Zhongqiu Han In-Reply-To: <20260929102957.2591657-4-christian.loehle@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Info: AW1haW4tMjYxMDAyMDA1MCBTYWx0ZWRfX9jrJuGUTSh7F xlPEsWBgi1zoGyUaVvjNPSFH57E9ec+XBDZG6Px9C9Lu2FRZQG1SoREVK/5x1Mh0J3PkSUUfALi 8M4UR+d67f5/xNyNQoaH438qrt++L6c= X-Authority-Analysis: v=2.4 cv=QY7zLcbv c=1 sm=1 tr=0 ts=6abfa79a cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=7CQSdrXTAAAA:8 a=wYuGpgGkS1f18Qd9x5MA:9 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 a=a-qgeE7W1pNrGK8U0ZQC:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDAyMDA1MCBTYWx0ZWRfX3RHEnxVaikqj GHO1zgLsiaya/lGPI0Atnl7wdWCiXNxYvEwyAAAHFRhkrqpTRQ+UIZSFsQGWz14Htj5xgwCTBC5 +Bza5ct2qrbtZoT3Z06n9N5/IuILuIXW0sAeMmDPz0nHGm89MyTK6zYCHcxBdvN14DCcFXhq90t Tl9X/I1xxRee938leIOi2JufGHgWvm8yV1TpUYkH4MIObcjGAJTNdkh/T0tRxizbbSnqhW2Dc2u UlXvalpydTxswg7v2vH2/zzuv/BD2kAN0k2Muzt9VlTAuxkjJI7zSW1cWORUD9XMmy0qy1Eirun aS/7El1/PpUWM3Y3Emp+dVtq4FJTpMY4MX5PVCKnqo0cGEzVKrcH1JG5TX8G8bGQ7UjS3urKz3i 1abEthZ7yu1Qi4DaVbXAoJ8oZLhQu/goAuYv0epyACjJsbr0HX9iePmnjuoGKbJaxUEZcL8w1Vg 1dq+lMjxSR/nif8jpKw== X-Proofpoint-ORIG-GUID: GiXD777tsF5xazxnGpfGAig0rI8jjr5S X-Proofpoint-GUID: GiXD777tsF5xazxnGpfGAig0rI8jjr5S X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-02_03,2026-10-01_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 lowpriorityscore=0 clxscore=1015 phishscore=0 bulkscore=0 spamscore=0 suspectscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610020050 On 9/29/2026 6:29 PM, Christian Loehle wrote: > Commit 9801be8bef65 ("cpufreq: Avoid redundant target() calls for unchanged > limits") introduced policy->update_limits to skip ->target() when both the > frequency and effective limits are unchanged. schedutil still bypasses its > frequency cache on every limit notification for CPUFREQ_NEED_UPDATE_LIMITS > drivers, and fast switching never consumes the pending state. > > Keep raw QoS/limit notifications triggering schedutil recomputation, but > only let CPUFREQ_NEED_UPDATE_LIMITS force a same-frequency callback when > resolved policy->{min,max} changes remain pending. Expose that test through > a cpufreq-core helper. > > Consume pending state before both slow and fast callbacks, including > frequency changes, instead of clearing it only in the target == cur case. > Use release/acquire ordering for the limits and restore pending state on > failure, preserving concurrent updates and retries. Favor the maximum > if lockless limit reads observe an inverted pair. > > This applies to cppc-cpufreq and amd-pstate's frequency-based paths; the > ->adjust_perf() path is unchanged. > > Signed-off-by: Christian Loehle > --- > drivers/cpufreq/cpufreq.c | 82 ++++++++++++++++++++++++++------ > include/linux/cpufreq.h | 1 + > kernel/sched/cpufreq_schedutil.c | 19 ++------ > 3 files changed, 72 insertions(+), 30 deletions(-) > > diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c > index 44bda2f32fcf..9e932c2a986d 100644 > --- a/drivers/cpufreq/cpufreq.c > +++ b/drivers/cpufreq/cpufreq.c > @@ -2058,6 +2058,21 @@ bool cpufreq_driver_test_flags(u16 flags) > return !!(cpufreq_driver->flags & flags); > } > > +/** > + * cpufreq_driver_needs_limits_update - Check for a pending driver limit update. > + * @policy: CPU frequency policy to check. > + * > + * Return: Whether changed resolved limits require a driver callback. > + */ > +bool cpufreq_driver_needs_limits_update(struct cpufreq_policy *policy) > +{ > + if (!cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS)) > + return false; > + > + /* Pairs with cpufreq_set_update_limits(). */ > + return smp_load_acquire(&policy->update_limits); > +} > + > /** > * cpufreq_get_current_driver - Return the current driver's name. > * > @@ -2183,6 +2198,30 @@ EXPORT_SYMBOL(cpufreq_unregister_notifier); > * GOVERNORS * > *********************************************************************/ > > +static bool cpufreq_test_and_clear_update_limits(struct cpufreq_policy *policy) > +{ > + if (!cpufreq_driver_needs_limits_update(policy)) > + return false; > + > + return xchg(&policy->update_limits, false); Since policy->update_limits is a bool, this would require a 1-byte xchg(), which, as far as I know, is not supported on all architectures. such as on sparc: static __always_inline unsigned long __arch_xchg(unsigned long x, __volatile__ void * ptr, int size) { switch (size) { case 2: return xchg16(ptr, x); case 4: return xchg32(ptr, x); case 8: return xchg64(ptr, x); } __xchg_called_with_bad_pointer(); return x; } > +} > + > +static void cpufreq_set_update_limits(struct cpufreq_policy *policy) > +{ > + /* Publish the new limits before making their update pending. */ > + smp_store_release(&policy->update_limits, true); > +} > + > +static void cpufreq_read_policy_limits(struct cpufreq_policy *policy, > + unsigned int *min, unsigned int *max) > +{ > + /* Lockless reads can mix limit updates; favor max if inverted. */ > + *min = READ_ONCE(policy->min); > + *max = READ_ONCE(policy->max); > + if (unlikely(*min > *max)) > + *min = *max; > +} > + > /** > * cpufreq_driver_fast_switch - Carry out a fast CPU frequency switch. > * @policy: cpufreq policy to switch the frequency for. > @@ -2209,14 +2248,20 @@ EXPORT_SYMBOL(cpufreq_unregister_notifier); > unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy, > unsigned int target_freq) > { > - unsigned int freq; > + bool update_limits; > + unsigned int min, max, freq; > int cpu; > > - target_freq = clamp_val(target_freq, policy->min, policy->max); > + update_limits = cpufreq_test_and_clear_update_limits(policy); > + cpufreq_read_policy_limits(policy, &min, &max); > + target_freq = clamp_val(target_freq, min, max); > freq = cpufreq_driver->fast_switch(policy, target_freq); > > - if (!freq) > + if (!freq) { > + if (update_limits) > + cpufreq_set_update_limits(policy); > return 0; > + } > > policy->cur = freq; > arch_set_freq_scale(policy->related_cpus, freq, > @@ -2367,12 +2412,16 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy, > unsigned int relation) > { > unsigned int old_target_freq = target_freq; > + unsigned int min, max; > + bool update_limits; > + int ret; > > if (cpufreq_disabled()) > return -ENODEV; > > - target_freq = __resolve_freq(policy, target_freq, policy->min, > - policy->max, relation); > + update_limits = cpufreq_test_and_clear_update_limits(policy); > + cpufreq_read_policy_limits(policy, &min, &max); > + target_freq = __resolve_freq(policy, target_freq, min, max, relation); > > pr_debug("CPU %u: cur %u kHz -> target %u kHz (req %u kHz, rel %u)\n", > policy->cpu, policy->cur, target_freq, old_target_freq, relation); > @@ -2384,11 +2433,8 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy, > * calls. > */ > if (target_freq == policy->cur) { > - if (!(cpufreq_driver->flags & CPUFREQ_NEED_UPDATE_LIMITS) || > - !policy->update_limits) > + if (!update_limits) > return 0; > - > - policy->update_limits = false; > } > > if (cpufreq_driver->target) { > @@ -2399,13 +2445,19 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy, > if (!policy->efficiencies_available) > relation &= ~CPUFREQ_RELATION_E; > > - return cpufreq_driver->target(policy, target_freq, relation); > + ret = cpufreq_driver->target(policy, target_freq, relation); > + } else if (cpufreq_driver->target_index) { > + ret = __target_index(policy, policy->cached_resolved_idx); > + } else { > + if (update_limits) > + cpufreq_set_update_limits(policy); > + return -EINVAL; > } > > - if (!cpufreq_driver->target_index) > - return -EINVAL; > + if (ret && update_limits) > + cpufreq_set_update_limits(policy); > > - return __target_index(policy, policy->cached_resolved_idx); > + return ret; > } > EXPORT_SYMBOL_GPL(__cpufreq_driver_target); > > @@ -2681,7 +2733,7 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, > CPUFREQ_RELATION_H); > if (freq != policy->max) { > WRITE_ONCE(policy->max, freq); > - policy->update_limits = true; > + cpufreq_set_update_limits(policy); > } > > freq = __resolve_freq(policy, new_data.min, new_data.min, new_data.max, > @@ -2689,7 +2741,7 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy, > freq = min(freq, policy->max); > if (freq != policy->min) { > WRITE_ONCE(policy->min, freq); > - policy->update_limits = true; > + cpufreq_set_update_limits(policy); > } > > trace_cpu_frequency_limits(policy); > diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h > index a0a7619d11fd..acd60c2b30f1 100644 > --- a/include/linux/cpufreq.h > +++ b/include/linux/cpufreq.h > @@ -499,6 +499,7 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data); > void cpufreq_unregister_driver(struct cpufreq_driver *driver_data); > > bool cpufreq_driver_test_flags(u16 flags); > +bool cpufreq_driver_needs_limits_update(struct cpufreq_policy *policy); > const char *cpufreq_get_current_driver(void); > void *cpufreq_get_driver_data(void); > > diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c > index 49ccd6f1c185..43e448ee3c4c 100644 > --- a/kernel/sched/cpufreq_schedutil.c > +++ b/kernel/sched/cpufreq_schedutil.c > @@ -123,22 +123,11 @@ static bool sugov_should_update_freq(struct sugov_policy *sg_policy, u64 time) > static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time, > unsigned int next_freq) > { > - if (sg_policy->need_freq_update) { > - sg_policy->need_freq_update = false; > - /* > - * The policy limits have changed, but if the return value of > - * cpufreq_driver_resolve_freq() after applying the new limits > - * is still equal to the previously selected frequency, the > - * driver callback need not be invoked unless the driver > - * specifically wants that to happen on every update of the > - * policy limits. > - */ > - if (sg_policy->next_freq == next_freq && > - !cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS)) > - return false; > - } else if (sg_policy->next_freq == next_freq) { > + sg_policy->need_freq_update = false; > + > + if (sg_policy->next_freq == next_freq && > + !cpufreq_driver_needs_limits_update(sg_policy->policy)) > return false; > - } > > sg_policy->next_freq = next_freq; > sg_policy->last_freq_update_time = time; -- Thx and BRs, Zhongqiu Han