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Subject[PATCH] Update the kmem_cache_create documentation regarding the name parameter
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Date
kmem_cache implementations like slub are allowed to merge multiple
caches but only the initial name is preserved. Therefore,
kmem_cache_name() is not guaranteed to return the same pointer passed to
the former function. This patch updates the documentation to make this
clearer.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
---
mm/slab.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 4887f1b..8924a03 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2124,6 +2124,8 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep)
*
* @name must be valid until the cache is destroyed. This implies that
* the module calling this has to destroy the cache before getting unloaded.
+ * Note that kmem_cache_name() is not guaranteed to return the same pointer,
+ * therefore applications must manage it themselves.
*
* The flags are
*


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