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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 09:23:45 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 09:23:45 -0700 |
| commit | 1f0918d03ff4b5c94540c71ce889672abdbc2f4a (patch) | |
| tree | ecee710444fb3405da55933501e339e10e4ac880 /drivers/virtio/virtio_ring.c | |
| parent | 4266c97a3ef4604561a22212eb0eab8a3c338971 (diff) | |
| parent | ca60a42c9be41c07ebcc2ec8c43dd1be53f147bf (diff) | |
| download | linux-1f0918d03ff4b5c94540c71ce889672abdbc2f4a.tar.gz linux-1f0918d03ff4b5c94540c71ce889672abdbc2f4a.tar.bz2 linux-1f0918d03ff4b5c94540c71ce889672abdbc2f4a.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest: don't force VIRTIO_F_NOTIFY_ON_EMPTY
lguest: cleanup for map_switcher()
lguest: use PGDIR_SHIFT for PAE code to allow different PAGE_OFFSET
lguest: use set_pte/set_pmd uniformly for real page table entries
lguest: move panic notifier registration to its expected place.
virtio_blk: add support for cache flush
virtio: add virtio IDs file
virtio: get rid of redundant VIRTIO_ID_9P definition
virtio: make add_buf return capacity remaining
virtio_pci: minor MSI-X cleanups
Diffstat (limited to 'drivers/virtio/virtio_ring.c')
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index a882f2606515..f53600580726 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -208,7 +208,11 @@ add_head: pr_debug("Added buffer head %i to %p\n", head, vq); END_USE(vq); - return 0; + + /* If we're indirect, we can fit many (assuming not OOM). */ + if (vq->indirect) + return vq->num_free ? vq->vring.num : 0; + return vq->num_free; } static void vring_kick(struct virtqueue *_vq) |