From: Michael S. Tsirkin Date: Thu, 1 Nov 2012 09:16:22 +0000 (+0000) Subject: skb: report completion status for zero copy skbs X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~45^2~479 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e19d6763cc300fcb706bd291b24ac06be71e1ce6;p=pandora-kernel.git 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 Signed-off-by: David S. Miller --- Reading git-diff-tree failed