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| author | David S. Miller <davem@davemloft.net> | 2008-03-17 23:44:31 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-17 23:44:31 -0700 |
| commit | 2f633928cbba8a5858bb39b11e7219a41b0fbef5 (patch) | |
| tree | 9a82f4b7f2c3afe4b0208d8e44ea61bae90a7d22 /include/linux/virtio.h | |
| parent | 5e226e4d9016daee170699f8a4188a5505021756 (diff) | |
| parent | bde4f8fa8db2abd5ac9c542d76012d0fedab050f (diff) | |
| download | op-kernel-dev-2f633928cbba8a5858bb39b11e7219a41b0fbef5.zip op-kernel-dev-2f633928cbba8a5858bb39b11e7219a41b0fbef5.tar.gz | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/linux/virtio.h')
| -rw-r--r-- | include/linux/virtio.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 260d1fc..12c18ac 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -43,8 +43,9 @@ struct virtqueue * vq: the struct virtqueue we're talking about. * @enable_cb: restart callbacks after disable_cb. * vq: the struct virtqueue we're talking about. - * This returns "false" (and doesn't re-enable) if there are pending - * buffers in the queue, to avoid a race. + * This re-enables callbacks; it returns "false" if there are pending + * buffers in the queue, to detect a possible race between the driver + * checking for more work, and enabling callbacks. * * Locking rules are straightforward: the driver is responsible for * locking. No two operations may be invoked simultaneously. |
