The patch titled
Subject: slub: make ->inuse unsigned int
has been added to the -mm tree. Its filename is
slub-make-inuse-unsigned-int.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/slub-make-inuse-unsigned-int.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/slub-make-inuse-unsigned-int.patch
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------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: slub: make ->inuse unsigned int
->inuse is "the number of bytes in actual use by the object",
can't be negative.
Link: http://lkml.kernel.org/r/20180305200730.15812-14-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>
---
include/linux/slub_def.h | 2 +-
mm/slub.c | 5 ++---
2 files changed, 3 insertions(+), 4 deletions(-)
diff -puN include/linux/slub_def.h~slub-make-inuse-unsigned-int include/linux/slub_def.h
--- a/include/linux/slub_def.h~slub-make-inuse-unsigned-int
+++ a/include/linux/slub_def.h
@@ -98,7 +98,7 @@ struct kmem_cache {
gfp_t allocflags; /* gfp flags to use on each alloc */
int refcount; /* Refcount for slab cache destroy */
void (*ctor)(void *);
- int inuse; /* Offset to metadata */
+ unsigned int inuse; /* Offset to metadata */
unsigned int align; /* Alignment */
unsigned int reserved; /* Reserved bytes at the end of slabs */
unsigned int red_left_pad; /* Left redzone padding size */
diff -puN mm/slub.c~slub-make-inuse-unsigned-int mm/slub.c
--- a/mm/slub.c~slub-make-inuse-unsigned-int
+++ a/mm/slub.c
@@ -4255,12 +4255,11 @@ __kmem_cache_alias(const char *name, uns
* the complete object on kzalloc.
*/
s->object_size = max(s->object_size, (int)size);
- s->inuse = max_t(int, s->inuse, ALIGN(size, sizeof(void *)));
+ s->inuse = max(s->inuse, ALIGN(size, sizeof(void *)));
for_each_memcg_cache(c, s) {
c->object_size = s->object_size;
- c->inuse = max_t(int, c->inuse,
- ALIGN(size, sizeof(void *)));
+ c->inuse = max(c->inuse, ALIGN(size, sizeof(void *)));
}
if (sysfs_slab_alias(s, name)) {
_
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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