Messages in this thread Patch in this message | | | From | xiaohui.xin@intel ... | Subject | [RFC][PATCH v4 09/18] Don't do skb recycle, if device use external buffer. | Date | Sun, 25 Apr 2010 17:19:56 +0800 |
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From: Xin Xiaohui <xiaohui.xin@intel.com>
Signed-off-by: Xin Xiaohui <xiaohui.xin@intel.com> Signed-off-by: Zhao Yu <yzhao81@gmail.com> Reviewed-by: Jeff Dike <jdike@linux.intel.com> --- net/core/skbuff.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index ae223d2..169f22c 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -553,6 +553,12 @@ int skb_recycle_check(struct sk_buff *skb, int skb_size) if (skb_shared(skb) || skb_cloned(skb)) return 0; + /* if the device wants to do mediate passthru, the skb may + * get external buffer, so don't recycle + */ + if (dev_is_mpassthru(skb->dev)) + return 0; + skb_release_head_state(skb); shinfo = skb_shinfo(skb); atomic_set(&shinfo->dataref, 1); -- 1.5.4.4
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