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| author | Paolo Bonzini <pbonzini@redhat.com> | 2019-04-16 10:56:08 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2019-05-12 13:11:35 -0400 |
| commit | 889e31e73a738183a402cf4dbca991dce2abce96 (patch) | |
| tree | 3299686e7c6a28be19a8a39b70e888e40dc8fe55 /drivers/vhost | |
| parent | d63031bb0fc0314541340f08a0c35c40216ca72a (diff) | |
| download | linux-889e31e73a738183a402cf4dbca991dce2abce96.tar.gz linux-889e31e73a738183a402cf4dbca991dce2abce96.tar.bz2 linux-889e31e73a738183a402cf4dbca991dce2abce96.zip | |
vhost-scsi: remove incorrect memory barrier
At this point, vs_tpg is not public at all; tv_tpg_vhost_count
is accessed under tpg->tv_tpg_mutex; tpg->vhost_scsi is
accessed under vhost_scsi_mutex. Therefor there are no atomic
operations involved at all here, just remove the barrier.
Reported-by: Andrea Parri <andrea.parri@amarulasolutions.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/scsi.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 618fb6461017..c090d177bd75 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -1443,7 +1443,6 @@ vhost_scsi_set_endpoint(struct vhost_scsi *vs, tpg->tv_tpg_vhost_count++; tpg->vhost_scsi = vs; vs_tpg[tpg->tport_tpgt] = tpg; - smp_mb__after_atomic(); match = true; } mutex_unlock(&tpg->tv_tpg_mutex); |