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| author | Mike Travis <travis@sgi.com> | 2008-04-04 18:11:10 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-04-19 19:44:59 +0200 |
| commit | c5f59f0833df945eef7ff35f3dc6ba61c5f293dd (patch) | |
| tree | 32c1a94847d0154051c79011212d401462723d55 /mm/vmscan.c | |
| parent | b53e921ba1cff8453dc9a87a84052fa12d5b30bd (diff) | |
| download | lwn-c5f59f0833df945eef7ff35f3dc6ba61c5f293dd.tar.gz lwn-c5f59f0833df945eef7ff35f3dc6ba61c5f293dd.zip | |
nodemask: use new node_to_cpumask_ptr function
* Use new node_to_cpumask_ptr. This creates a pointer to the
cpumask for a given node. This definition is in mm patch:
asm-generic-add-node_to_cpumask_ptr-macro.patch
* Use new set_cpus_allowed_ptr function.
Depends on:
[mm-patch]: asm-generic-add-node_to_cpumask_ptr-macro.patch
[sched-devel]: sched: add new set_cpus_allowed_ptr function
[x86/latest]: x86: add cpus_scnprintf function
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Greg Banks <gnb@melbourne.sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 18 |
1 files changed, 8 insertions, 10 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index 4046434046e6..f80a5b7c057f 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -1647,11 +1647,10 @@ static int kswapd(void *p) struct reclaim_state reclaim_state = { .reclaimed_slab = 0, }; - cpumask_t cpumask; + node_to_cpumask_ptr(cpumask, pgdat->node_id); - cpumask = node_to_cpumask(pgdat->node_id); - if (!cpus_empty(cpumask)) - set_cpus_allowed(tsk, cpumask); + if (!cpus_empty(*cpumask)) + set_cpus_allowed_ptr(tsk, cpumask); current->reclaim_state = &reclaim_state; /* @@ -1880,17 +1879,16 @@ out: static int __devinit cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) { - pg_data_t *pgdat; - cpumask_t mask; int nid; if (action == CPU_ONLINE || action == CPU_ONLINE_FROZEN) { for_each_node_state(nid, N_HIGH_MEMORY) { - pgdat = NODE_DATA(nid); - mask = node_to_cpumask(pgdat->node_id); - if (any_online_cpu(mask) != NR_CPUS) + pg_data_t *pgdat = NODE_DATA(nid); + node_to_cpumask_ptr(mask, pgdat->node_id); + + if (any_online_cpu(*mask) < nr_cpu_ids) /* One of our CPUs online: restore mask */ - set_cpus_allowed(pgdat->kswapd, mask); + set_cpus_allowed_ptr(pgdat->kswapd, mask); } } return NOTIFY_OK; |