Messages in this thread Patch in this message |  | | Date | Wed, 21 Feb 2007 15:43:20 +0100 | From | Peter Zijlstra <> | Subject | [PATCH 16/29] netvm: filter emergency skbs. |
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Toss all emergency packets not for a SOCK_VMIO socket. This ensures our precious memory reserve doesn't get stuck waiting for user-space.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> --- include/net/sock.h | 3 +++ 1 file changed, 3 insertions(+)
Index: linux-2.6-git/include/net/sock.h =================================================================== --- linux-2.6-git.orig/include/net/sock.h 2007-02-14 16:15:49.000000000 +0100 +++ linux-2.6-git/include/net/sock.h 2007-02-14 16:16:27.000000000 +0100 @@ -926,6 +926,9 @@ static inline int sk_filter(struct sock { int err; struct sk_filter *filter; + + if (skb_emergency(skb) && !sk_has_vmio(sk)) + return -EPERM; err = security_sock_rcv_skb(sk, skb); if (err) --
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