Maxime Coquelin a5ae5a81bc vduse: Use proper spinlock for IRQ injection ...

[ Upstream commit 7ca26efb09 ]

The IRQ injection work used spin_lock_irq() to protect the
scheduling of the softirq, but spin_lock_bh() should be
used.

With spin_lock_irq(), we noticed delay of more than 6
seconds between the time a NAPI polling work is scheduled
and the time it is executed.

Fixes: c8a6153b6c ("vduse: Introduce VDUSE - vDPA Device in Userspace")
Cc: xieyongji@bytedance.com

Suggested-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Message-Id: <20230705114505.63274-1-maxime.coquelin@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Xie Yongji <xieyongji@bytedance.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-08-26 14:23:30 +02:00

..

ifcvf

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mlx5

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vdpa_sim

vdpa_sim: set last_used_idx as last_avail_idx in vdpasim_queue_ready

2023-03-22 13:31:24 +01:00

vdpa_user

vduse: Use proper spinlock for IRQ injection

2023-08-26 14:23:30 +02:00

virtio_pci

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Kconfig

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Makefile

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vdpa.c

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