commit 253ff51635ad6690276ef065d59523c4bd1cd584
author Florian Westphal <fw@strlen.de> Tue Aug 26 12:55:53 2014 +0200
committer David S. Miller <davem@davemloft.net> Wed Aug 27 16:30:49 2014 -0700
tree 7024bed49e3532b3a382c66150fd2c3681559c87
parent 1fc3de94076cd0c1e53e5ba8061763b33c7b27c2

tcp: syncookies: mark cookie_secret read_mostly

only written once.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/syncookies.c

diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index c0c7568..0431a8f 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -25,7 +25,7 @@
 
 extern int sysctl_tcp_syncookies;
 
-static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS];
+static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS] __read_mostly;
 
 #define COOKIEBITS 24	/* Upper bits store count */
 #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)