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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/ipv6_sockglue.c | |
| parent | [LIB]: Make TEXTSEARCH_BM plain tristate like the others (diff) | |
| download | linux-dev-ba89966c1984513f4f2cc0a6c182266be44ddd03.tar.xz linux-dev-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/ipv6_sockglue.c')
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 7516b8829a9d..76466af8331e 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), |