lkml.org 
[lkml]   [2010]   [Jun]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[RFC PATCH v7 10/19] Don't do skb recycle, if device use external buffer.
    Date
    From: Xin Xiaohui <xiaohui.xin@intel.com>

    Signed-off-by: Xin Xiaohui <xiaohui.xin@intel.com>
    Signed-off-by: Zhao Yu <yzhao81new@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 38d19d0..37587f0 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


    \
     
     \ /
      Last update: 2010-06-05 12:13    [W:0.022 / U:93.648 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site