diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 00:58:59 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-02-09 00:58:59 -0500 |
| commit | cac0e8e8bb2e7a086643bdd00c41d900a79bb4fa (patch) | |
| tree | 73cd85e5529a01fa2338ab6d58b99c36dd666cbe /mm/page_alloc.c | |
| parent | ddef9bb367b19383df627e388cb4c01c86ddba6c (diff) | |
| parent | 0bdd340c092b0936f78a54bdbd3927463ed4fca3 (diff) | |
Merge branch 'master'
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 44b4eb4202d..dde04ff4be3 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -1213,18 +1213,21 @@ static void __get_page_state(struct page_state *ret, int nr, cpumask_t *cpumask) { int cpu = 0; - memset(ret, 0, sizeof(*ret)); + memset(ret, 0, nr * sizeof(unsigned long)); cpus_and(*cpumask, *cpumask, cpu_online_map); cpu = first_cpu(*cpumask); while (cpu < NR_CPUS) { unsigned long *in, *out, off; + if (!cpu_isset(cpu, *cpumask)) + continue; + in = (unsigned long *)&per_cpu(page_states, cpu); cpu = next_cpu(cpu, *cpumask); - if (cpu < NR_CPUS) + if (likely(cpu < NR_CPUS)) prefetch(&per_cpu(page_states, cpu)); out = (unsigned long *)ret; @@ -1886,8 +1889,7 @@ static void setup_pagelist_highmark(struct per_cpu_pageset *p, * not check if the processor is online before following the pageset pointer. * Other parts of the kernel may not check if the zone is available. */ -static struct per_cpu_pageset - boot_pageset[NR_CPUS]; +static struct per_cpu_pageset boot_pageset[NR_CPUS]; /* * Dynamically allocate memory for the |