From: Mirza Ishan Beg <seedandsyntax@gmail.com>
To: virtualization@lists.linux.dev
Cc: linux-kernel@vger.kernel.org,
"Michael S . Tsirkin" <mst@redhat.com>,
"Jason Wang" <jasowangio@gmail.com>,
"Xuan Zhuo" <xuanzhuo@linux.alibaba.com>,
"Eugenio Pérez" <eperezma@redhat.com>,
"Mirza Ishan Beg" <seedandsyntax@gmail.com>
Subject: [PATCH] virtio_pci_modern: replace msleep(1) with usleep_range(1000, 2000)
Date: Sun, 16 Aug 2026 15:13:19 +0530 [thread overview]
Message-ID: <20260816094318.8083-2-seedandsyntax@gmail.com> (raw)
Replace msleep(1) with usleep_range(1000, 2000) in the queue reset
loops.
msleep(1) relies on jiffies and can sleep up to 4-10 ms depending on HZ,
whereas usleep_range provides predictable microsecond-level delay.
Signed-off-by: Mirza Ishan Beg <seedandsyntax@gmail.com>
---
drivers/virtio/virtio_pci_modern_dev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/virtio/virtio_pci_modern_dev.c b/drivers/virtio/virtio_pci_modern_dev.c
index 413a8c353463..8e74a813ca97 100644
--- a/drivers/virtio/virtio_pci_modern_dev.c
+++ b/drivers/virtio/virtio_pci_modern_dev.c
@@ -535,10 +535,10 @@ void vp_modern_set_queue_reset(struct virtio_pci_modern_device *mdev, u16 index)
vp_iowrite16(1, &cfg->queue_reset);
while (vp_ioread16(&cfg->queue_reset))
- msleep(1);
+ usleep_range(1000, 2000);
while (vp_ioread16(&cfg->cfg.queue_enable))
- msleep(1);
+ usleep_range(1000, 2000);
}
EXPORT_SYMBOL_GPL(vp_modern_set_queue_reset);
--
2.47.3
next reply other threads:[~2026-08-16 10:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-16 9:43 Mirza Ishan Beg [this message]
2026-08-16 21:38 ` Michael S. Tsirkin
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