[PATCH] slub: remove obsolete comments of put_cpu_partial()

[miles.chen]

From: Miles Chen <miles.chen@xxxxxxxxxxxx>

The commit d6e0b7fa1186 ("slub: make dead caches discard free
slabs immediately") makes put_cpu_partial() run with preemption
disabled and interrupts disabled when calling unfreeze_partials().

The comment: "put_cpu_partial() is done without interrupts disabled
and without preemption disabled" looks obsolete, so remove it.

Signed-off-by: Miles Chen <miles.chen@xxxxxxxxxxxx>
---
 mm/slub.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index cfd56e5a35fb..70447d39de90 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2220,9 +2220,7 @@ static void unfreeze_partials(struct kmem_cache *s,
 
 /*
  * Put a page that was just frozen (in __slab_free) into a partial page
- * slot if available. This is done without interrupts disabled and without
- * preemption disabled. The cmpxchg is racy and may put the partial page
- * onto a random cpus partial slot.
+ * slot if available.
  *
  * If we did not find a slot then simply move all the partials to the
  * per node partial list.
-- 
2.12.5