| commit | 0a888fd1f6320d1d9318c58de9bca3cef41546d6 | |
| author | Mark McLoughlin <markmc@redhat.com> | |
| Mon, 17 Nov 2008 06:39:18 +0000 (16 22:39 -0800) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Mon, 17 Nov 2008 06:39:18 +0000 (16 22:39 -0800) | ||
| tree | e1ff542e6c8acba415d67a3764e4124849801805 | treesnapshot (tar.gz zip) |
| parent | 908cd2dabbfbbefb02f6b908a1188a62e685136a | commitdiff |
virtio_net: Recycle some more rx buffer pages
Each time we re-fill the recv queue with buffers, we allocate
one too many skbs and free it again when adding fails. We should
recycle the pages allocated in this case.
A previous version of this patch made trim_pages() trim trailing
unused pages from skbs with some paged data, but this actually
caused a barely measurable slowdown.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (use netdev_priv)
Signed-off-by: David S. Miller <davem@davemloft.net>
Each time we re-fill the recv queue with buffers, we allocate
one too many skbs and free it again when adding fails. We should
recycle the pages allocated in this case.
A previous version of this patch made trim_pages() trim trailing
unused pages from skbs with some paged data, but this actually
caused a barely measurable slowdown.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (use netdev_priv)
Signed-off-by: David S. Miller <davem@davemloft.net>
| drivers/net/virtio_net.c | diffblobblamehistory |