Commit fe1ff49d authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Linus Torvalds

mm: kmem_cache_create(): make it easier to catch NULL cache names

Right now, if you inadvertently pass NULL to kmem_cache_create() at boot
time, it crashes much later after boot somewhere deep inside sysfs which
makes it very non obvious to figure out what's going on.
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 398499d5
......@@ -3345,6 +3345,9 @@ struct kmem_cache *kmem_cache_create(const char *name, size_t size,
{
struct kmem_cache *s;
if (WARN_ON(!name))
return NULL;
down_write(&slub_lock);
s = find_mergeable(size, align, flags, name, ctor);
if (s) {
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment