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| author | Eric Dumazet <dada1@cosmosbay.com> | 2005-08-26 12:05:31 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2005-08-29 16:11:18 -0700 |
| commit | ba89966c1984513f4f2cc0a6c182266be44ddd03 (patch) | |
| tree | 6e5766fc5c287708c03e0a162531dfd4785b0703 /net/ipv6 | |
| parent | 29cb9f9c5502f6218cd3ea574efe46a5e55522d2 (diff) | |
| download | linux-3.10-ba89966c1984513f4f2cc0a6c182266be44ddd03.tar.gz linux-3.10-ba89966c1984513f4f2cc0a6c182266be44ddd03.tar.bz2 linux-3.10-ba89966c1984513f4f2cc0a6c182266be44ddd03.zip | |
[NET]: use __read_mostly on kmem_cache_t , DEFINE_SNMP_STAT pointers
This patch puts mostly read only data in the right section
(read_mostly), to help sharing of these data between CPUS without
memory ping pongs.
On one of my production machine, tcp_statistics was sitting in a
heavily modified cache line, so *every* SNMP update had to force a
reload.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
| -rw-r--r-- | net/ipv6/icmp.c | 2 | ||||
| -rw-r--r-- | net/ipv6/ip6_fib.c | 2 | ||||
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 2 | ||||
| -rw-r--r-- | net/ipv6/udp.c | 2 | ||||
| -rw-r--r-- | net/ipv6/xfrm6_tunnel.c | 2 |
5 files changed, 5 insertions, 5 deletions
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index ff685f229b6..5176fc655ea 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -67,7 +67,7 @@ #include <asm/uaccess.h> #include <asm/system.h> -DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics); +DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics) __read_mostly; /* * The ICMP socket(s). This is the most convenient way to flow control diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 1b354aa9793..16af874c9e8 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -49,7 +49,7 @@ struct rt6_statistics rt6_stats; -static kmem_cache_t * fib6_node_kmem; +static kmem_cache_t * fib6_node_kmem __read_mostly; enum fib_walk_state_t { diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 7516b8829a9..76466af8331 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -55,7 +55,7 @@ #include <asm/uaccess.h> -DEFINE_SNMP_STAT(struct ipstats_mib, ipv6_statistics); +DEFINE_SNMP_STAT(struct ipstats_mib, ipv6_statistics) __read_mostly; static struct packet_type ipv6_packet_type = { .type = __constant_htons(ETH_P_IPV6), diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 67d9a04b690..390d750449c 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -59,7 +59,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> -DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6); +DEFINE_SNMP_STAT(struct udp_mib, udp_stats_in6) __read_mostly; /* Grrr, addr_type already calculated by caller, but I don't want * to add some silly "cookie" argument to this method just for that. diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index 60c26c87277..fbef7826a74 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -79,7 +79,7 @@ static u32 xfrm6_tunnel_spi; #define XFRM6_TUNNEL_SPI_MIN 1 #define XFRM6_TUNNEL_SPI_MAX 0xffffffff -static kmem_cache_t *xfrm6_tunnel_spi_kmem; +static kmem_cache_t *xfrm6_tunnel_spi_kmem __read_mostly; #define XFRM6_TUNNEL_SPI_BYADDR_HSIZE 256 #define XFRM6_TUNNEL_SPI_BYSPI_HSIZE 256 |