slub: make struct kmem_cache_order_objects::x unsigned int
commit19af27aff901e401a5b79e5c974e881e4701162c
authorAlexey Dobriyan <adobriyan@gmail.com>
Thu, 5 Apr 2018 23:21:39 +0000 (5 16:21 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 6 Apr 2018 04:36:24 +0000 (5 21:36 -0700)
tree6b080c2aaf72c184bf4a982c90377d3f35599420
parent284b50ddcf32e3fe1cd39bfc9ad803704e6ca338
slub: make struct kmem_cache_order_objects::x unsigned int

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>
include/linux/slub_def.h
mm/slub.c