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Merge branches 'core-urgent-for-linus' and 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  slab, lockdep: Fix silly bug

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Fix race condition when stopping the irq thread
This commit is contained in:
Linus Torvalds 2011-12-05 16:51:21 -08:00
commit f14aa871c7
2 changed files with 8 additions and 2 deletions
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5
kernel/irq/manage.c
View File

@ -623,16 +623,19 @@ static irqreturn_t irq_nested_primary_handler(int irq, void *dev_id)
static int irq_wait_for_interrupt(struct irqaction *action) static int irq_wait_for_interrupt(struct irqaction *action)
{ {
while (!kthread_should_stop()) {
set_current_state(TASK_INTERRUPTIBLE); set_current_state(TASK_INTERRUPTIBLE);
while (!kthread_should_stop()) {
if (test_and_clear_bit(IRQTF_RUNTHREAD, if (test_and_clear_bit(IRQTF_RUNTHREAD,
&action->thread_flags)) { &action->thread_flags)) {
__set_current_state(TASK_RUNNING); __set_current_state(TASK_RUNNING);
return 0; return 0;
} }
schedule(); schedule();
set_current_state(TASK_INTERRUPTIBLE);
} }
__set_current_state(TASK_RUNNING);
return -1; return -1;
} }

5
mm/slab.c
View File

@ -595,6 +595,7 @@ static enum {
PARTIAL_AC, PARTIAL_AC,
PARTIAL_L3, PARTIAL_L3,
EARLY, EARLY,
LATE,
FULL FULL
} g_cpucache_up; } g_cpucache_up;
@ -671,7 +672,7 @@ static void init_node_lock_keys(int q)
{ {
struct cache_sizes *s = malloc_sizes; struct cache_sizes *s = malloc_sizes;
if (g_cpucache_up != FULL) if (g_cpucache_up < LATE)
return; return;
for (s = malloc_sizes; s->cs_size != ULONG_MAX; s++) { for (s = malloc_sizes; s->cs_size != ULONG_MAX; s++) {
@ -1666,6 +1667,8 @@ void __init kmem_cache_init_late(void)
{ {
struct kmem_cache *cachep; struct kmem_cache *cachep;
g_cpucache_up = LATE;
/* Annotate slab for lockdep -- annotate the malloc caches */ /* Annotate slab for lockdep -- annotate the malloc caches */
init_lock_keys(); init_lock_keys();