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authorAlexey Dobriyan <adobriyan@gmail.com>2018-04-05 16:21:39 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-05 21:36:24 -0700
commit19af27aff901e401a5b79e5c974e881e4701162c (patch)
tree6b080c2aaf72c184bf4a982c90377d3f35599420 /include
parent284b50ddcf32e3fe1cd39bfc9ad803704e6ca338 (diff)
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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/slub_def.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 623d6ba92036..3773e26c08c1 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -73,7 +73,7 @@ struct kmem_cache_cpu {
* given order would contain.
*/
struct kmem_cache_order_objects {
- unsigned long x;
+ unsigned int x;
};
/*