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authorMenglong Dong <imagedong@tencent.com>2022-02-20 10:06:33 +0300
committerDavid S. Miller <davem@davemloft.net>2022-02-20 16:55:31 +0300
commit7a26dc9e7b43f5a24c4b843713e728582adf1c38 (patch)
treed00986fcf40658d8a29ace8ef825644bf3f60861 /include/linux/skbuff.h
parent643b622b51f1f0015e0a80f90b4ef9032e6ddb1b (diff)
downloadlinux-7a26dc9e7b43f5a24c4b843713e728582adf1c38.tar.xz
net: tcp: add skb drop reasons to tcp_add_backlog()
Pass the address of drop_reason to tcp_add_backlog() to store the reasons for skb drops when fails. Following drop reasons are introduced: SKB_DROP_REASON_SOCKET_BACKLOG Reviewed-by: Mengen Sun <mengensun@tencent.com> Reviewed-by: Hao Peng <flyingpeng@tencent.com> Signed-off-by: Menglong Dong <imagedong@tencent.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 46678eb587ff..f7f33c79945b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -358,6 +358,10 @@ enum skb_drop_reason {
* corresponding to
* LINUX_MIB_TCPMD5FAILURE
*/
+ SKB_DROP_REASON_SOCKET_BACKLOG, /* failed to add skb to socket
+ * backlog (see
+ * LINUX_MIB_TCPBACKLOGDROP)
+ */
SKB_DROP_REASON_MAX,
};