| commit | ed18b1ed4f34888872b5fbc2f217c65d62c95cfd | |
| author | Stefan Hajnoczi <stefanha@redhat.com> | |
| Tue, 5 Dec 2023 18:19:58 +0000 (5 13:19 -0500) | ||
| committer | Kevin Wolf <kwolf@redhat.com> | |
| Thu, 21 Dec 2023 21:49:27 +0000 (21 22:49 +0100) | ||
| tree | a62eff3b16c753d530e61e2098a88a0029872306 | treesnapshot (tar.gz zip) |
| parent | e661a2470342d6fa873369c81988a19b1bb7b3f4 | commitdiff |
virtio-scsi: replace AioContext lock with tmf_bh_lock
Protect the Task Management Function BH state with a lock. The TMF BH
runs in the main loop thread. An IOThread might process a TMF at the
same time as the TMF BH is running. Therefore tmf_bh_list and tmf_bh
must be protected by a lock.
Run TMF request completion in the IOThread using aio_wait_bh_oneshot().
This avoids more locking to protect the virtqueue and SCSI layer state.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231205182011.1976568-2-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Protect the Task Management Function BH state with a lock. The TMF BH
runs in the main loop thread. An IOThread might process a TMF at the
same time as the TMF BH is running. Therefore tmf_bh_list and tmf_bh
must be protected by a lock.
Run TMF request completion in the IOThread using aio_wait_bh_oneshot().
This avoids more locking to protect the virtqueue and SCSI layer state.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20231205182011.1976568-2-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| hw/scsi/virtio-scsi.c | diffblobblamehistory | |
| include/hw/virtio/virtio-scsi.h | diffblobblamehistory |