Merge remote-tracking branch 'common/android-3.0' into android-samsung-30-wip-mergedown

* common/android-3.0: (1178 commits)
  cpufreq: interactive: remove unused target_validate_time_in_idle
  cpufreq: interactive: Boost frequency on touchscreen input
  cpufreq: Separate speed target revalidate time and initial set time
  cpufreq: interactive: based hispeed bump on target freq, not actual
  cpufreq: interactive: adjust code and documentation to match
  cpufreq: interactive: configurable delay before raising above hispeed
  sync: add poll support
  sw_sync: add fill_driver_data support
  sync: add ioctl to get fence data
  sw_sync: add debug support
  sync: add debugfs support
  sync: add timestamps to sync_pts
  sw_sync: add cpu based sync driver
  sync: Add synchronization framework
  Linux 3.0.28
  Bluetooth: Fix l2cap conn failures for ssp devices
  TOMOYO: Fix mount flags checking order.
  iommu/amd: Make sure IOMMU interrupts are re-enabled on resume
  cred: copy_process() should clear child->replacement_session_keyring
  ASoC: ak4642: fixup: mute needs +1 step
  ...

Conflicts:
	mm/compaction.c

Change-Id: I3dc59225d2435eddbed0c639155179e580891ac8
Signed-off-by: JP Abgrall <jpa@google.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/mm/slub.c b/mm/slub.c
index 35f351f..10ab233 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1818,6 +1818,11 @@ static void *__slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
 	if (unlikely(!node_match(c, node)))
 		goto another_slab;
 
+	/* must check again c->freelist in case of cpu migration or IRQ */
+	object = c->freelist;
+	if (object)
+		goto update_freelist;
+
 	stat(s, ALLOC_REFILL);
 
 load_freelist:
@@ -1827,6 +1832,7 @@ load_freelist:
 	if (kmem_cache_debug(s))
 		goto debug;
 
+update_freelist:
 	c->freelist = get_freepointer(s, object);
 	page->inuse = page->objects;
 	page->freelist = NULL;
@@ -3433,13 +3439,14 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
 		if (kmem_cache_open(s, n,
 				size, align, flags, ctor)) {
 			list_add(&s->list, &slab_caches);
+			up_write(&slub_lock);
 			if (sysfs_slab_add(s)) {
+				down_write(&slub_lock);
 				list_del(&s->list);
 				kfree(n);
 				kfree(s);
 				goto err;
 			}
-			up_write(&slub_lock);
 			return s;
 		}
 		kfree(n);