diff options
| author | David Woodhouse <David.Woodhouse@intel.com> | 2008-10-21 19:42:20 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2008-10-21 19:42:20 +0100 |
| commit | b876d08f816527af257e13d89fb0d3b4b849223c (patch) | |
| tree | 40569f568230f918ca55f04b355e251747f913ed /kernel/timer.c | |
| parent | b364776ad1208a71f0c53578c84619a395412a8d (diff) | |
| parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
drivers/pci/dmar.c
Diffstat (limited to 'kernel/timer.c')
| -rw-r--r-- | kernel/timer.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/kernel/timer.c b/kernel/timer.c index 510fe69351c..56becf373c5 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1436,9 +1436,11 @@ static void __cpuinit migrate_timers(int cpu) BUG_ON(cpu_online(cpu)); old_base = per_cpu(tvec_bases, cpu); new_base = get_cpu_var(tvec_bases); - - local_irq_disable(); - spin_lock(&new_base->lock); + /* + * The caller is globally serialized and nobody else + * takes two locks at once, deadlock is not possible. + */ + spin_lock_irq(&new_base->lock); spin_lock_nested(&old_base->lock, SINGLE_DEPTH_NESTING); BUG_ON(old_base->running_timer); @@ -1453,8 +1455,7 @@ static void __cpuinit migrate_timers(int cpu) } spin_unlock(&old_base->lock); - spin_unlock(&new_base->lock); - local_irq_enable(); + spin_unlock_irq(&new_base->lock); put_cpu_var(tvec_bases); } #endif /* CONFIG_HOTPLUG_CPU */ |