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authorEric Dumazet <edumazet@google.com>2015-09-29 07:42:51 -0700
committerDavid S. Miller <davem@davemloft.net>2015-09-29 16:53:10 -0700
commit2985aaac010ebd5e562ce1a22cc61acbb0e40cf2 (patch)
tree43f34a8d12365c7ee0e5101bb30332e8fbcc0827 /include/net/request_sock.h
parentf964629e3338d9e5a78c9b354380d5a1e2fa4617 (diff)
tcp: constify tcp_syn_flood_action() socket argument
tcp_syn_flood_action() will soon be called with unlocked socket. In order to avoid SYN flood warning being emitted multiple times, use xchg(). Extend max_qlen_log and synflood_warned fields in struct listen_sock to u32 Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/request_sock.h')
-rw-r--r--include/net/request_sock.h5
1 files changed, 2 insertions, 3 deletions
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 90247ec7955b..c146b5284786 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -129,9 +129,8 @@ struct listen_sock {
atomic_t qlen_dec; /* qlen = qlen_inc - qlen_dec */
atomic_t young_dec;
- u8 max_qlen_log ____cacheline_aligned_in_smp;
- u8 synflood_warned;
- /* 2 bytes hole, try to use */
+ u32 max_qlen_log ____cacheline_aligned_in_smp;
+ u32 synflood_warned;
u32 hash_rnd;
u32 nr_table_entries;
struct request_sock *syn_table[0];