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authorRusty Russell <rusty@rustcorp.com.au>2009-01-01 10:12:28 +1030
committerRusty Russell <rusty@rustcorp.com.au>2009-01-01 10:12:28 +1030
commit41c7bb9588904eb060a95bcad47bd3804a1ece25 (patch)
treeccae4bd3cb26be171fad9e26147ef8839405f298 /kernel/softlockup.c
parente0b582ec56f1a1d8b30ebf340a7b91fb09f26c8c (diff)
downloadlinux-41c7bb9588904eb060a95bcad47bd3804a1ece25.tar.bz2
cpumask: convert rest of files in kernel/
Impact: Reduce stack usage, use new cpumask API. Mainly changing cpumask_t to 'struct cpumask' and similar simple API conversion. Two conversions worth mentioning: 1) we use cpumask_any_but to avoid a temporary in kernel/softlockup.c, 2) Use cpumask_var_t in taskstats_user_cmd(). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Mike Travis <travis@sgi.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@redhat.com>
Diffstat (limited to 'kernel/softlockup.c')
-rw-r--r--kernel/softlockup.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/softlockup.c b/kernel/softlockup.c
index 492f0c72fec5..d9188c66278a 100644
--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -310,10 +310,8 @@ cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu)
case CPU_DOWN_PREPARE:
case CPU_DOWN_PREPARE_FROZEN:
if (hotcpu == check_cpu) {
- cpumask_t temp_cpu_online_map = cpu_online_map;
-
- cpu_clear(hotcpu, temp_cpu_online_map);
- check_cpu = cpumask_any(&temp_cpu_online_map);
+ /* Pick any other online cpu. */
+ check_cpu = cpumask_any_but(cpu_online_mask, hotcpu);
}
break;