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vhost: fix log ctx signalling

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The log eventfd signalling got put in dead code.
We didn't notice because qemu currently does polling
instead of eventfd select.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2010-09-22 12:31:53 +02:00
parent ee05d6939e
commit 5786aee8bf
1 changed files with 4 additions and 3 deletions
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7
drivers/vhost/vhost.c
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@ -858,11 +858,12 @@ int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log,
if (r < 0) if (r < 0)
return r; return r;
len -= l; len -= l;
if (!len) if (!len) {
if (vq->log_ctx)
eventfd_signal(vq->log_ctx, 1);
return 0; return 0;
}
} }
if (vq->log_ctx)
eventfd_signal(vq->log_ctx, 1);
/* Length written exceeds what we have stored. This is a bug. */ /* Length written exceeds what we have stored. This is a bug. */
BUG(); BUG();
return 0; return 0;