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>
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@ -1443,7 +1443,6 @@ vhost_scsi_set_endpoint(struct vhost_scsi *vs,
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tpg->tv_tpg_vhost_count++;
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tpg->tv_tpg_vhost_count++;
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tpg->vhost_scsi = vs;
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tpg->vhost_scsi = vs;
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vs_tpg[tpg->tport_tpgt] = tpg;
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vs_tpg[tpg->tport_tpgt] = tpg;
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smp_mb__after_atomic();
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match = true;
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match = true;
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}
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}
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mutex_unlock(&tpg->tv_tpg_mutex);
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mutex_unlock(&tpg->tv_tpg_mutex);
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