vdpa_sim: replace the spinlock with a mutex to protect the state

Browse source

The spinlock we use to protect the state of the simulator is sometimes
held for a long time (for example, when devices handle requests).

This also prevents us from calling functions that might sleep (such as
kthread_flush_work() in the next patch), and thus having to release
and retake the lock.

For these reasons, let's replace the spinlock with a mutex that gives
us more flexibility.

Suggested-by: Jason Wang <jasowang@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20230404131730.45920-1-sgarzare@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

...

This commit is contained in:

Stefano Garzarella 2023-04-04 15:17:29 +02:00 • committed by Michael S. Tsirkin

parent 76acfa7bc5

commit d7621c28fc

4 changed files with 23 additions and 23 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

34

drivers/vdpa/vdpa_sim/vdpa_sim.c

View file

4

drivers/vdpa/vdpa_sim/vdpa_sim.h

View file

4

drivers/vdpa/vdpa_sim/vdpa_sim_blk.c

View file

4

drivers/vdpa/vdpa_sim/vdpa_sim_net.c

View file