* [PATCH] slab: Update stale comment for sheaf_capacity.
@ 2026-02-28 20:15 Kuniyuki Iwashima
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From: Kuniyuki Iwashima @ 2026-02-28 20:15 UTC (permalink / raw)
To: Vlastimil Babka, Andrew Morton
Cc: Christoph Lameter, David Rientjes, Roman Gushchin, Harry Yoo,
Kuniyuki Iwashima, Kuniyuki Iwashima, linux-mm, linux-kernel
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@google.com>
---
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
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