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netfilter: use likely() in xt_info_rdlock_bh()
author
Eric Dumazet
<dada1@cosmosbay.com>
Fri, 1 May 2009 16:10:46 +0000
(09:10 -0700)
committer
David S. Miller
<davem@davemloft.net>
Fri, 1 May 2009 16:10:46 +0000
(09:10 -0700)
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/netfilter/x_tables.h
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diff --git
a/include/linux/netfilter/x_tables.h
b/include/linux/netfilter/x_tables.h
index
1b2e435
..
c9efe03
100644
(file)
--- a/
include/linux/netfilter/x_tables.h
+++ b/
include/linux/netfilter/x_tables.h
@@
-472,7
+472,7
@@
static inline void xt_info_rdlock_bh(void)
local_bh_disable();
lock = &__get_cpu_var(xt_info_locks);
- if (
!lock->readers++
)
+ if (
likely(!lock->readers++)
)
spin_lock(&lock->lock);
}
@@
-480,7
+480,7
@@
static inline void xt_info_rdunlock_bh(void)
{
struct xt_info_lock *lock = &__get_cpu_var(xt_info_locks);
- if (
!--lock->readers
)
+ if (
likely(!--lock->readers)
)
spin_unlock(&lock->lock);
local_bh_enable();
}