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Annotate sysctlmemlock with __exclusive_cache_line.

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MFC after:	1 week
This commit is contained in:
Mateusz Guzik 2017-09-27 01:27:43 +00:00
parent 0da36218ad
commit 956713cb74
1 changed files with 1 additions and 1 deletions
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sys/kern/kern_sysctl.c
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@ -88,7 +88,7 @@ static MALLOC_DEFINE(M_SYSCTLTMP, "sysctltmp", "sysctl temp output buffer");
* sysctl requests larger than a single page via an exclusive lock. * sysctl requests larger than a single page via an exclusive lock.
*/ */
static struct rmlock sysctllock; static struct rmlock sysctllock;
static struct sx sysctlmemlock; static struct sx __exclusive_cache_line sysctlmemlock;
#define SYSCTL_WLOCK() rm_wlock(&sysctllock) #define SYSCTL_WLOCK() rm_wlock(&sysctllock)
#define SYSCTL_WUNLOCK() rm_wunlock(&sysctllock) #define SYSCTL_WUNLOCK() rm_wunlock(&sysctllock)