linux-kernel - [PATCH 2/2] blk-mq: Fix I/O hang caused by incomplete device resume

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Message-Id: <20251126101636.205505-3-yang.yang@vivo.com>
Date: Wed, 26 Nov 2025 18:16:36 +0800
From: Yang Yang <yang.yang@...o.com>
To: Jens Axboe <axboe@...nel.dk>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Pavel Machek <pavel@...nel.org>,
	Len Brown <lenb@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Danilo Krummrich <dakr@...nel.org>,
	linux-block@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org
Cc: Yang Yang <yang.yang@...o.com>
Subject: [PATCH 2/2] blk-mq: Fix I/O hang caused by incomplete device resume

Setting the force_check_resume flag ensures the device is resumed
properly.

Signed-off-by: Yang Yang <yang.yang@...o.com>
---
 block/blk-pm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/blk-pm.c b/block/blk-pm.c
index 8d3e052f91da..d23918fbd59f 100644
--- a/block/blk-pm.c
+++ b/block/blk-pm.c
@@ -28,6 +28,7 @@
  */
 void blk_pm_runtime_init(struct request_queue *q, struct device *dev)
 {
+	dev->power.force_check_resume = true;
 	q->dev = dev;
 	q->rpm_status = RPM_ACTIVE;
 	pm_runtime_set_autosuspend_delay(q->dev, -1);
-- 
2.34.1