3.18-stable review patch. If anyone has any objections, please let me know.
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From: Alexey Dobriyan adobriyan@gmail.com
commit e5d9998f3e09359b372a037a6ac55ba235d95d57 upstream.
/* * cpu_partial determined the maximum number of objects * kept in the per cpu partial lists of a processor. */
Can't be negative.
Link: http://lkml.kernel.org/r/20180305200730.15812-15-adobriyan@gmail.com Signed-off-by: Alexey Dobriyan adobriyan@gmail.com Acked-by: 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 Signed-off-by: zhong jiang zhongjiang@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- include/linux/slub_def.h | 3 ++- mm/slub.c | 6 +++--- 2 files changed, 5 insertions(+), 4 deletions(-)
--- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -67,7 +67,8 @@ struct kmem_cache { int size; /* The size of an object including meta data */ int object_size; /* The size of an object without meta data */ int offset; /* Free pointer offset. */ - int cpu_partial; /* Number of per cpu partial objects to keep around */ + /* Number of per cpu partial objects to keep around */ + unsigned int cpu_partial; struct kmem_cache_order_objects oo;
/* Allocation and freeing of slabs */ --- a/mm/slub.c +++ b/mm/slub.c @@ -1577,7 +1577,7 @@ static void *get_partial_node(struct kme { struct page *page, *page2; void *object = NULL; - int available = 0; + unsigned int available = 0; int objects;
/* @@ -4366,10 +4366,10 @@ static ssize_t cpu_partial_show(struct k static ssize_t cpu_partial_store(struct kmem_cache *s, const char *buf, size_t length) { - unsigned long objects; + unsigned int objects; int err;
- err = kstrtoul(buf, 10, &objects); + err = kstrtouint(buf, 10, &objects); if (err) return err; if (objects && !kmem_cache_has_cpu_partial(s))