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[PATCH] consolidate lru_add_drain() and lru_drain_cache() 

Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: Rajesh Shah <rajesh.shah@intel.com>
Cc: Li Shaohua <shaohua.li@intel.com>
Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2006-01-06 00:11:14 -08:00 committed by Linus Torvalds
parent 210fe53030
commit 80bfed904c
1 changed files with 11 additions and 16 deletions
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27
mm/swap.c
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@ -156,16 +156,22 @@ void fastcall lru_cache_add_active(struct page *page)
put_cpu_var(lru_add_active_pvecs);
}
void lru_add_drain(void)
static void __lru_add_drain(int cpu)
{
struct pagevec *pvec = &get_cpu_var(lru_add_pvecs);
struct pagevec *pvec = &per_cpu(lru_add_pvecs, cpu);
/* CPU is dead, so no locking needed. */
if (pagevec_count(pvec))
__pagevec_lru_add(pvec);
pvec = &__get_cpu_var(lru_add_active_pvecs);
pvec = &per_cpu(lru_add_active_pvecs, cpu);
if (pagevec_count(pvec))
__pagevec_lru_add_active(pvec);
put_cpu_var(lru_add_pvecs);
}
void lru_add_drain(void)
{
__lru_add_drain(get_cpu());
put_cpu();
}
/*
@ -412,17 +418,6 @@ void vm_acct_memory(long pages)
}
#ifdef CONFIG_HOTPLUG_CPU
static void lru_drain_cache(unsigned int cpu)
{
struct pagevec *pvec = &per_cpu(lru_add_pvecs, cpu);
/* CPU is dead, so no locking needed. */
if (pagevec_count(pvec))
__pagevec_lru_add(pvec);
pvec = &per_cpu(lru_add_active_pvecs, cpu);
if (pagevec_count(pvec))
__pagevec_lru_add_active(pvec);
}
/* Drop the CPU's cached committed space back into the central pool. */
static int cpu_swap_callback(struct notifier_block *nfb,
@ -435,7 +430,7 @@ static int cpu_swap_callback(struct notifier_block *nfb,
if (action == CPU_DEAD) {
atomic_add(*committed, &vm_committed_space);
*committed = 0;
lru_drain_cache((long)hcpu);
__lru_add_drain((long)hcpu);
}
return NOTIFY_OK;
}