git.stricted.de - GitHub/MotorolaMobilityLLC/kernel-slsi.git/commit

author	Alexander Duyck <alexander.h.duyck@intel.com>
	Thu, 3 May 2012 01:09:42 +0000 (01:09 +0000)
committer	David S. Miller <davem@davemloft.net>
	Thu, 3 May 2012 17:18:37 +0000 (13:18 -0400)
commit	3a7c1ee4ab89f9250b8f82656a7be0ae14aa3691
tree	9dc10e067f2364fd3590b38cd5db495cd09c32e6	tree \| snapshot (tar.gz zip)
parent	715dc1f342713816d1be1c37643a2c9e6ee181a7	commit \| diff

skb: Add skb_head_is_locked helper function

This patch adds support for a skb_head_is_locked helper function. It is
meant to be used any time we are considering transferring the head from
skb->head to a paged frag. If the head is locked it means we cannot remove
the head from the skb so it must be copied or we must take the skb as a
whole.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/skbuff.h		diff \| blob \| blame \| history
net/core/skbuff.c		diff \| blob \| blame \| history
net/ipv4/tcp_input.c		diff \| blob \| blame \| history