The patch titled
Subject: slab: make size_index_elem() unsigned int
has been added to the -mm tree. Its filename is
slab-make-size_index_elem-unsigned-int.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/slab-make-size_index_elem-unsigned-int.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/slab-make-size_index_elem-unsigned-int.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
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there every 3-4 working days
------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: slab: make size_index_elem() unsigned int
size_index_elem() always works with small sizes (kmalloc caches are 32-bit)
and returns small indexes.
Link: http://lkml.kernel.org/r/20180305200730.15812-8-adobriyan@xxxxxxxxx
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slab_common.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff -puN mm/slab_common.c~slab-make-size_index_elem-unsigned-int mm/slab_common.c
--- a/mm/slab_common.c~slab-make-size_index_elem-unsigned-int
+++ a/mm/slab_common.c
@@ -998,7 +998,7 @@ static u8 size_index[24] __ro_after_init
2 /* 192 */
};
-static inline int size_index_elem(size_t bytes)
+static inline unsigned int size_index_elem(unsigned int bytes)
{
return (bytes - 1) / 8;
}
@@ -1067,13 +1067,13 @@ const struct kmalloc_info_struct kmalloc
*/
void __init setup_kmalloc_cache_index_table(void)
{
- int i;
+ unsigned int i;
BUILD_BUG_ON(KMALLOC_MIN_SIZE > 256 ||
(KMALLOC_MIN_SIZE & (KMALLOC_MIN_SIZE - 1)));
for (i = 8; i < KMALLOC_MIN_SIZE; i += 8) {
- int elem = size_index_elem(i);
+ unsigned int elem = size_index_elem(i);
if (elem >= ARRAY_SIZE(size_index))
break;
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
slab-mark-kmalloc-machinery-as-__ro_after_init.patch
slab-fixup-calculate_alignment-argument-type.patch
slab-make-kmalloc_index-return-unsigned-int.patch
slab-make-kmalloc_size-return-unsigned-int.patch
slab-make-create_kmalloc_cache-work-with-32-bit-sizes.patch
slab-make-create_boot_cache-work-with-32-bit-sizes.patch
slab-make-kmem_cache_create-work-with-32-bit-sizes.patch
slab-make-size_index-array-u8.patch
slab-make-size_index_elem-unsigned-int.patch
slub-make-remote_node_defrag_ratio-unsigned-int.patch
slub-make-max_attr_size-unsigned-int.patch
slub-make-red_left_pad-unsigned-int.patch
slub-make-reserved-unsigned-int.patch
slub-make-align-unsigned-int.patch
slub-make-inuse-unsigned-int.patch
slub-make-cpu_partial-unsigned-int.patch
slub-make-offset-unsigned-int.patch
slub-make-object_size-unsigned-int.patch
slub-make-size-unsigned-int.patch
slab-make-kmem_cache_flags-accept-32-bit-object-size.patch
kasan-make-kasan_cache_create-work-with-32-bit-slab-cache-sizes.patch
slab-make-usercopy-region-32-bit.patch
slub-make-slab_index-return-unsigned-int.patch
slub-make-struct-kmem_cache_order_objects-x-unsigned-int.patch
slub-make-size_from_object-return-unsigned-int.patch
slab-use-32-bit-arithmetic-in-freelist_randomize.patch
proc-do-less-stuff-under-pde_unload_lock.patch
proc-move-proc-sysvipc-creation-to-where-it-belongs.patch
proc-faster-open-close-of-files-without-release-hook.patch
proc-randomize-struct-pde_opener.patch
proc-move-struct-pde_opener-to-kmem-cache.patch
proc-account-struct-pde_opener.patch
proc-check-permissions-earlier-for-proc-wchan.patch
proc-use-set_puts-at-proc-wchan.patch
proc-test-proc-self-wchan.patch
proc-test-proc-self-syscall.patch
uts-create-struct-uts_namespace-from-kmem_cache.patch
seq_file-delete-small-value-optimization.patch
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