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Mike Christie 8f174c5db1 vhost-scsi: Handle vhost_vq_work_queue failures for events ... [ Upstream commit b1b2ce58ed ] Currently, we can try to queue an event's work before the vhost_task is created. When this happens we just drop it in vhost_scsi_do_plug before even calling vhost_vq_work_queue. During a device shutdown we do the same thing after vhost_scsi_clear_endpoint has cleared the backends. In the next patches we will be able to kill the vhost_task before we have cleared the endpoint. In that case, vhost_vq_work_queue can fail and we will leak the event's memory. This has handle the failure by just freeing the event. This is safe to do, because vhost_vq_work_queue will only return failure for us when the vhost_task is killed and so userspace will not be able to handle events if we sent them. Signed-off-by: Mike Christie <michael.christie@oracle.com> Message-Id: <20240316004707.45557-2-michael.christie@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-07-11 12:49:20 +02:00
..
iotlb.c	vhost_iotlb: split out IOTLB initialization	2022-05-31 12:44:28 -04:00
Kconfig	vhost_task: Allow vhost layer to use copy_process	2023-03-23 12:45:36 +01:00
Makefile	vhost: introduce vDPA-based backend	2020-04-02 10:41:40 -04:00
net.c	vhost: convert poll work to be vq based	2023-07-03 12:15:13 -04:00
scsi.c	vhost-scsi: Handle vhost_vq_work_queue failures for events	2024-07-11 12:49:20 +02:00
test.c	vhost-test: remove meaningless debug info	2023-02-20 19:26:58 -05:00
test.h	tools/virtio: Add --reset	2020-06-22 12:34:21 -04:00
vdpa.c	vhost-vdpa: fix use after free in vhost_vdpa_probe()	2023-11-28 17:19:49 +00:00
vhost.c	vhost_task: Handle SIGKILL by flushing work and exiting	2024-07-11 12:49:10 +02:00
vhost.h	vhost_task: Handle SIGKILL by flushing work and exiting	2024-07-11 12:49:10 +02:00
vringh.c	vringh: don't use vringh_kiov_advance() in vringh_iov_xfer()	2023-10-04 08:26:48 +01:00
vsock.c	virtio/vsock: send credit update during setting SO_RCVLOWAT	2024-01-25 15:35:26 -08:00