[PATCH] slab: Update stale comment for sheaf_capacity.

[Kuniyuki Iwashima]

The comment for sheaf_capacity says it does not enforce NUMA
placement, but it's not true since commit 4ec1a08d2031 ("slab:
allow NUMA restricted allocations to use percpu sheaves").

Let's update the comment.

Signed-off-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>
---
 include/linux/slab.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/include/linux/slab.h b/include/linux/slab.h
index 15a60b501b95..7477109eb315 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -359,9 +359,8 @@ struct kmem_cache_args {
 	 * may replace it with an empty sheaf, unless it's over capacity. In
 	 * that case a sheaf is bulk freed to slab pages.
 	 *
-	 * The sheaves do not enforce NUMA placement of objects, so allocations
-	 * via kmem_cache_alloc_node() with a node specified other than
-	 * NUMA_NO_NODE will bypass them.
+	 * The sheaves try to enforce NUMA placement of objects, but the
+	 * allocation may fall back to the normal operation.
 	 *
 	 * Bulk allocation and free operations also try to use the cpu sheaves
 	 * and barn, but fallback to using slab pages directly.
-- 
2.53.0.473.g4a7958ca14-goog