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IPVS: convert __ip_vs_securetcp_lock to a spinlock
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>
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bd14455048
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4f72816ef0
1 changed files with 3 additions and 3 deletions
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@ -61,7 +61,7 @@ static DEFINE_RWLOCK(__ip_vs_svc_lock);
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static DEFINE_RWLOCK(__ip_vs_rs_lock);
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/* lock for state and timeout tables */
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static DEFINE_RWLOCK(__ip_vs_securetcp_lock);
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static DEFINE_SPINLOCK(ip_vs_securetcp_lock);
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/* lock for drop entry handling */
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static DEFINE_SPINLOCK(__ip_vs_dropentry_lock);
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@ -204,7 +204,7 @@ static void update_defense_level(void)
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spin_unlock(&__ip_vs_droppacket_lock);
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/* secure_tcp */
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write_lock(&__ip_vs_securetcp_lock);
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spin_lock(&ip_vs_securetcp_lock);
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switch (sysctl_ip_vs_secure_tcp) {
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case 0:
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if (old_secure_tcp >= 2)
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@ -238,7 +238,7 @@ static void update_defense_level(void)
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old_secure_tcp = sysctl_ip_vs_secure_tcp;
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if (to_change >= 0)
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ip_vs_protocol_timeout_change(sysctl_ip_vs_secure_tcp>1);
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write_unlock(&__ip_vs_securetcp_lock);
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spin_unlock(&ip_vs_securetcp_lock);
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local_bh_enable();
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}
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