From: Simon Horman Date: Thu, 26 Aug 2010 02:54:30 +0000 (+0000) Subject: IPVS: convert __ip_vs_securetcp_lock to a spinlock X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4f72816ef07fdf49338ee0e6764a3961d552994a;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 Signed-off-by: Simon Horman Signed-off-by: David S. Miller --- diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 53a88af22503..8ca1a474eed6 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -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(); }