From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-182.mta1.migadu.com (out-182.mta1.migadu.com [95.215.58.182]) (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 DCCBF31716D for ; Thu, 16 Jul 2026 09:56:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784195811; cv=none; b=fgCtGFUanoQ9cKUZIUhTGu1+A7d60WWbC3h/9Nx0R9YocDjveQwaDhKCSYC6ImPn0uTHwHKuHRD99+LXX49UZkVId/FwPSBZU6Six+p9d2lVpesjqqHVbGsTx1g+8ym7rn+P94NnnwAJl1rKiIbOfY52RLLgnEamgopqgor7N8A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784195811; c=relaxed/simple; bh=1jQS3vVotNDVpGIRuO3w/ZeIc55uP5dtDWPlQVdPJ/o=; h=From:To:Cc:Subject:Date:Message-Id; b=dJ0RTtIFfQ0yKjck5+S2aAErXeIH73X+ANe0jEXHng3y1NV81sYCU15amNc1ZCKoq+ME4SdFdQ6YCIZjPihLOwqWHxREYkmK/uHzWvDNjNguoU9heVkJijWQkgvTJWmVmByBoxombNDLn8BuPMBCXqcHYOnzBIrZwz4ROeyrfJc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=XufCTfL/; arc=none smtp.client-ip=95.215.58.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="XufCTfL/" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1784195808; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc; bh=OR3AAhKrKa6kWECX3bflc/fJdvV2aIgy/DTv2eUyIwc=; b=XufCTfL/oRtuj46b4ZkmAHXDyI8vnIC17kMUpFZhW05UlOkm33p1MmYH6FMwP/YC41iRZi JymOKCZEFkaYgijx6cZOG4Y9KtfArBuqVpVMn6G9CHdVX8MlcTRDDNO2gNB+viRUDHcNh2 LN6Gv+5P9JKYLWbOca1+YliXA6nZ++E= From: Zqiang To: tj@kernel.org, jiangshanlai@gmail.com Cc: linux-kernel@vger.kernel.org, qiang.zhang@linux.dev Subject: [PATCH] workqueue: Use raise_softirq() to trigger softirq in irq_work handler Date: Thu, 16 Jul 2026 17:56:37 +0800 Message-Id: <20260716095637.23547-1-qiang.zhang@linux.dev> X-Migadu-Flow: FLOW_OUT Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The bh_pool_kick_normal() and bh_pool_kick_highpri() are registered via init_irq_work() without IRQ_WORK_HARD_IRQ flag. On PREEMPT_RT, such work items are processed by the per-CPU irq_workd kthread in preemptible task context with IRQs enabled. However calling raise_softirq_irqoff() requires IRQS must be disabled, This commit therefore replace raise_softirq_irqoff() with raise_softirq() in irq_work handler. Signed-off-by: Zqiang --- kernel/workqueue.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 78068ae8f28a..0bb978df0200 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -7923,12 +7923,12 @@ static inline void wq_watchdog_init(void) { } static void bh_pool_kick_normal(struct irq_work *irq_work) { - raise_softirq_irqoff(TASKLET_SOFTIRQ); + raise_softirq(TASKLET_SOFTIRQ); } static void bh_pool_kick_highpri(struct irq_work *irq_work) { - raise_softirq_irqoff(HI_SOFTIRQ); + raise_softirq(HI_SOFTIRQ); } static void __init restrict_unbound_cpumask(const char *name, const struct cpumask *mask) -- 2.17.1