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OpenCloudOS-Kernel
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slab: use CPU_LOCK_[ACQUIRE|RELEASE] 

Looks like this was forgotten when CPU_LOCK_[ACQUIRE|RELEASE] was
introduced.

Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Gautham Shenoy <ego@in.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Heiko Carstens 2007-05-09 02:34:05 -07:00 committed by Linus Torvalds
parent e7407dcc69
commit 38c3bd96a0
1 changed files with 5 additions and 8 deletions
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13
mm/slab.c
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@ -1186,8 +1186,10 @@ static int __cpuinit cpuup_callback(struct notifier_block *nfb,
int memsize = sizeof(struct kmem_list3);
switch (action) {
case CPU_UP_PREPARE:
case CPU_LOCK_ACQUIRE:
mutex_lock(&cache_chain_mutex);
break;
case CPU_UP_PREPARE:
/*
* We need to do this right in the beginning since
* alloc_arraycache's are going to use this list.
@ -1274,16 +1276,9 @@ static int __cpuinit cpuup_callback(struct notifier_block *nfb,
}
break;
case CPU_ONLINE:
mutex_unlock(&cache_chain_mutex);
start_cpu_timer(cpu);
break;
#ifdef CONFIG_HOTPLUG_CPU
case CPU_DOWN_PREPARE:
mutex_lock(&cache_chain_mutex);
break;
case CPU_DOWN_FAILED:
mutex_unlock(&cache_chain_mutex);
break;
case CPU_DEAD:
/*
* Even if all the cpus of a node are down, we don't free the
@ -1354,6 +1349,8 @@ free_array_cache:
continue;
drain_freelist(cachep, l3, l3->free_objects);
}
break;
case CPU_LOCK_RELEASE:
mutex_unlock(&cache_chain_mutex);
break;
}