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slub: make struct kmem_cache_order_objects::x unsigned int

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struct kmem_cache_order_objects is for mixing order and number of
objects, and orders aren't big enough to warrant 64-bit width.

Propagate unsignedness down so that everything fits.

!!! Patch assumes that "PAGE_SIZE << order" doesn't overflow. !!!

Link: http://lkml.kernel.org/r/20180305200730.15812-23-adobriyan@gmail.com
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan
2018-04-05 16:21:39 -07:00
committed by Linus Torvalds
parent 284b50ddcf
commit 19af27aff9
2 changed files with 40 additions and 36 deletions
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2
include/linux/slub_def.h
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@@ -73,7 +73,7 @@ struct kmem_cache_cpu {
* given order would contain.
*/
struct kmem_cache_order_objects {
unsigned long x;
unsigned int x;
};
/*