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authorMichael S. Tsirkin <mst@redhat.com>2012-11-01 10:16:22 +0100
committerDavid S. Miller <davem@davemloft.net>2012-11-03 02:29:57 +0100
commite19d6763cc300fcb706bd291b24ac06be71e1ce6 (patch)
tree05608ee69740360480b4c66a368eb21987993058 /drivers/vhost/tcm_vhost.h
parentMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsh... (diff)
downloadlinux-e19d6763cc300fcb706bd291b24ac06be71e1ce6.tar.xz
linux-e19d6763cc300fcb706bd291b24ac06be71e1ce6.zip
skb: report completion status for zero copy skbs
Even if skb is marked for zero copy, net core might still decide to copy it later which is somewhat slower than a copy in user context: besides copying the data we need to pin/unpin the pages. Add a parameter reporting such cases through zero copy callback: if this happens a lot, device can take this into account and switch to copying in user context. This patch updates all users but ignores the passed value for now: it will be used by follow-up patches. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/vhost/tcm_vhost.h')
0 files changed, 0 insertions, 0 deletions