From nobody Wed Apr 1 11:33:14 2026 Received: from va-1-114.ptr.blmpb.com (va-1-114.ptr.blmpb.com [209.127.230.114]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 68B3531715D for ; Tue, 31 Mar 2026 11:33:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.127.230.114 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774956802; cv=none; b=s8/zPNghfUiJzsPfNWfxkEB1Ty5Ybk5ilJwUb8Yolfyw5mT6HI2r1E0gnFOMS+qCNgWothn9fvDF/JYyZCLfumQH7rm2qE0RL4eThEmK8QYBLzR7EuyYE7lwl4sVlR9BOQacooSICBqG3xTBN4AIjDOGKsjNXLyuTSEV5LoX1t4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774956802; c=relaxed/simple; bh=pLywiVwJokTie6hZcJ5aOULb5E/sPYP6I2OWMqYPrNs=; h=To:In-Reply-To:Subject:Cc:Date:Mime-Version:Content-Type:From: Message-Id:References; b=T8T39iiwxO5twtHy+TaCZmMlz4dLd6wd5T5FIV2dxxrULFDi4D3K/cFcQJqQu/T50VSRqAzfinHu1wwZJ6tM7i+7FIeFZW4sR0l1Zf+Aj2fTqSPIUuTVng8j4iSMmGp6etdT41Tf3CsmYS/9/nZgyL8P9CipeWwzGJBp5CC2Fls= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com; spf=pass smtp.mailfrom=bytedance.com; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b=L53wYe7L; arc=none smtp.client-ip=209.127.230.114 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bytedance.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b="L53wYe7L" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=2212171451; d=bytedance.com; t=1774956794; h=from:subject: mime-version:from:date:message-id:subject:to:cc:reply-to:content-type: mime-version:in-reply-to:message-id; bh=c3hq5Me5QkTTcfCV851A2Rw5g4tVVkTFN9csw5ssKNk=; b=L53wYe7Lq/wcz/D58RQTisak4bXyNf7WZ/x3Ai/dX4xMY8pmIz4rN9yPwFVAapT0KobJdB xqPsPkK5iRDxjxK+FWmf0QgPFVJUfBkBnoJALLbwB++h3Dmt90i/f2FeWjjwtQmjmrNVZh JDCYeBdYrjZPxSBDMiTrWTXq1gncfbf88joICWOfdpnynpKk3LYBW9KXTRJVOsd5bDwuzc qTtcCpmLdLc3RWT7yUGxi1SswzoyMBoGZ8/yXzQPg4YgPhLVkB1J6BybkjxFUWS0Bt6Hs3 MteLfFuIayOXDpXxnF5a/UKXzWqAjwy8A7jxju1gX3L2i7v4/+xCkKGP2TVGdg== To: , , , , , , , , , , , , In-Reply-To: <20260331113103.2197007-1-zhouchuyi@bytedance.com> Content-Transfer-Encoding: quoted-printable Subject: [PATCH v4 08/12] smp: Remove preempt_disable from on_each_cpu_cond_mask X-Lms-Return-Path: X-Original-From: Chuyi Zhou Cc: , "Chuyi Zhou" Date: Tue, 31 Mar 2026 19:30:59 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 From: "Chuyi Zhou" Message-Id: <20260331113103.2197007-9-zhouchuyi@bytedance.com> X-Mailer: git-send-email 2.20.1 References: <20260331113103.2197007-1-zhouchuyi@bytedance.com> Content-Type: text/plain; charset="utf-8" Now smp_call_function_many_cond() internally handles the preemption logic, so on_each_cpu_cond_mask does not need to explicitly disable preemption. Remove preempt_{enable, disable} from on_each_cpu_cond_mask(). Signed-off-by: Chuyi Zhou Reviewed-by: Muchun Song --- kernel/smp.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/kernel/smp.c b/kernel/smp.c index 9b658362aa02..8a1c26312d12 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -1125,9 +1125,7 @@ void on_each_cpu_cond_mask(smp_cond_func_t cond_func,= smp_call_func_t func, if (wait) scf_flags |=3D SCF_WAIT; =20 - preempt_disable(); smp_call_function_many_cond(mask, func, info, scf_flags, cond_func); - preempt_enable(); } EXPORT_SYMBOL(on_each_cpu_cond_mask); =20 --=20 2.20.1