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IPVS: convert __ip_vs_securetcp_lock to a spinlock

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Also rename __ip_vs_securetcp_lock to ip_vs_securetcp_lock.

Spinlock conversion was suggested by Eric Dumazet.

Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Simon Horman
2010-08-26 02:54:30 +00:00
committed by David S. Miller
parent bd14455048
commit 4f72816ef0
1 changed files with 3 additions and 3 deletions
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6
net/netfilter/ipvs/ip_vs_ctl.c
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@@ -61,7 +61,7 @@ static DEFINE_RWLOCK(__ip_vs_svc_lock);
static DEFINE_RWLOCK(__ip_vs_rs_lock);
/* lock for state and timeout tables */
static DEFINE_RWLOCK(__ip_vs_securetcp_lock);
static DEFINE_SPINLOCK(ip_vs_securetcp_lock);
/* lock for drop entry handling */
static DEFINE_SPINLOCK(__ip_vs_dropentry_lock);
@@ -204,7 +204,7 @@ static void update_defense_level(void)
spin_unlock(&__ip_vs_droppacket_lock);
/* secure_tcp */
write_lock(&__ip_vs_securetcp_lock);
spin_lock(&ip_vs_securetcp_lock);
switch (sysctl_ip_vs_secure_tcp) {
case 0:
if (old_secure_tcp >= 2)
@@ -238,7 +238,7 @@ static void update_defense_level(void)
old_secure_tcp = sysctl_ip_vs_secure_tcp;
if (to_change >= 0)
ip_vs_protocol_timeout_change(sysctl_ip_vs_secure_tcp>1);
write_unlock(&__ip_vs_securetcp_lock);
spin_unlock(&ip_vs_securetcp_lock);
local_bh_enable();
}