| commit | 574f7194f693cd80de96a39f0c43dbb346c38a15 | |
| author | Eric W. Biederman <ebiederm@xmission.com> | |
| Tue, 1 Apr 2014 19:20:24 +0000 (1 12:20 -0700) | ||
| committer | David S. Miller <davem@davemloft.net> | |
| Tue, 1 Apr 2014 21:53:36 +0000 (1 17:53 -0400) | ||
| tree | e4a288169c3df023a77a70bc2538da2f3148792e | treesnapshot (tar.gz zip) |
| parent | f91ca783f11029940aa60a9a5aad4dce666e6414 | commitdiff |
net: Add a test to see if a skb is freeable in irq context
Currently netpoll and skb_release_head_state assume that a skb is
freeable in hard irq context except when skb->destructor is set.
The reality is far from this. So add a function skb_irq_freeable to
compute the full test and in the process be the living documentation
of what the requirements are of actually freeing a skb in hard irq
context.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently netpoll and skb_release_head_state assume that a skb is
freeable in hard irq context except when skb->destructor is set.
The reality is far from this. So add a function skb_irq_freeable to
compute the full test and in the process be the living documentation
of what the requirements are of actually freeing a skb in hard irq
context.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| include/linux/skbuff.h | diffblobblamehistory |