From nobody Mon Dec 1 21:30:58 2025 Received: from cstnet.cn (smtp81.cstnet.cn [159.226.251.81]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 603C628C864 for ; Mon, 1 Dec 2025 07:41:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764574893; cv=none; b=kKWypSHJHW8YyCRoBt5ya9wflrTqB4YKWwUxTi6CJiGnjTBzFQHKbrv3EPS5C+WQmvrsMqSWb9uyATCqLrW3s5UCtgDn0hREz7Y9pN9GhvVJkRqOKSuBD93ZS+T+QnuoxB3jgLoL/7ymNtiyjFBQRM9/xT3dr9yUawpKpGAnQCk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764574893; c=relaxed/simple; bh=LlTdrQ4RBREVafJi9KZEtWVWQFg+jM2uv04JAzkIgrE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=hTEGAwHNMgfH7zDYw5zA9ouwB+PQslwOEpHzzSPYa7/XCRZEyMTdpfavALm66UZSOFljlmfahuRndHPVmfehNnAXF1i3QDxkmV3i2wmgzVc1nx29nnCRcE6Qi6rfnerEWH8Qc7kVZZJk1RKdQvOD8JEh7ZEnHusnY/a0hQiGdJA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn; spf=pass smtp.mailfrom=iscas.ac.cn; arc=none smtp.client-ip=159.226.251.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=iscas.ac.cn Received: from DESKTOP-L0HPE2S (unknown [124.16.141.245]) by APP-03 (Coremail) with SMTP id rQCowAAHltihRi1pHCnHAg--.26340S2; Mon, 01 Dec 2025 15:41:22 +0800 (CST) From: Haotian Zhang To: Alasdair Kergon , Mike Snitzer , Mikulas Patocka Cc: dm-devel@lists.linux.dev, linux-kernel@vger.kernel.org, Haotian Zhang Subject: [PATCH] dm log-writes: Add missing set_freezable() for freezable kthread Date: Mon, 1 Dec 2025 15:41:03 +0800 Message-ID: <20251201074103.1281-1-vulab@iscas.ac.cn> X-Mailer: git-send-email 2.50.1.windows.1 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 X-CM-TRANSID: rQCowAAHltihRi1pHCnHAg--.26340S2 X-Coremail-Antispam: 1UD129KBjvdXoWruw4xGw4xtrWUCw4xXFW8Zwb_yoWfurX_ua yUXFWDXr1qgr4kCw1ayrW5Zry29Fyv9FWfWF4ftrWayr1Ikr13ur4vvr98Jr1Uu3ZrAFnY kryfXry5Aw17KjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbsxFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8w A2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr0_ Cr1l84ACjcxK6I8E87Iv67AKxVWxJr0_GcWl84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s 0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xII jxv20xvE14v26r106r15McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr 1lF7xvr2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7MxkF7I0En4kS14v26r12 6r1DMxkIecxEwVAFwVW8CwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8Jw C20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAF wI0_JF0_Jw1lIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjx v20xvEc7CjxVAFwI0_Jr0_Gr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2 jsIE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0x ZFpf9x0JUgL05UUUUU= X-CM-SenderInfo: pyxotu46lvutnvoduhdfq/1tbiDAUDA2ktN0E7KAAAso Content-Type: text/plain; charset="utf-8" The log_writes_kthread() calls try_to_freeze() but lacks set_freezable(), rendering the freeze attempt ineffective since kernel threads are non-freezable by default. This prevents proper thread suspension during system suspend/hibernate. Add set_freezable() to explicitly mark the thread as freezable. Fixes: 0e9cebe72459 ("dm: add log writes target") Signed-off-by: Haotian Zhang --- drivers/md/dm-log-writes.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c index 679b07dee229..1f8fbc27a12f 100644 --- a/drivers/md/dm-log-writes.c +++ b/drivers/md/dm-log-writes.c @@ -432,6 +432,7 @@ static int log_writes_kthread(void *arg) struct log_writes_c *lc =3D arg; sector_t sector =3D 0; =20 + set_freezable(); while (!kthread_should_stop()) { bool super =3D false; bool logging_enabled; --=20 2.50.1.windows.1