Commit e4f7c0b4 authored by Catalin Marinas's avatar Catalin Marinas

kmemleak: Trace the kmalloc_large* functions in slub

The kmalloc_large() and kmalloc_large_node() functions were missed when
adding the kmemleak hooks to the slub allocator. However, they should be
traced to avoid false positives.
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Acked-by: default avatarPekka Enberg <penberg@cs.helsinki.fi>
parent 2587362e
......@@ -11,6 +11,7 @@
#include <linux/workqueue.h>
#include <linux/kobject.h>
#include <linux/kmemtrace.h>
#include <linux/kmemleak.h>
enum stat_item {
ALLOC_FASTPATH, /* Allocation from cpu slab */
......@@ -233,6 +234,7 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
unsigned int order = get_order(size);
void *ret = (void *) __get_free_pages(flags | __GFP_COMP, order);
kmemleak_alloc(ret, size, 1, flags);
trace_kmalloc(_THIS_IP_, ret, size, PAGE_SIZE << order, flags);
return ret;
......
......@@ -21,7 +21,6 @@
#include <linux/kmemcheck.h>
#include <linux/cpu.h>
#include <linux/cpuset.h>
#include <linux/kmemleak.h>
#include <linux/mempolicy.h>
#include <linux/ctype.h>
#include <linux/debugobjects.h>
......@@ -2835,13 +2834,15 @@ EXPORT_SYMBOL(__kmalloc);
static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
{
struct page *page;
void *ptr = NULL;
flags |= __GFP_COMP | __GFP_NOTRACK;
page = alloc_pages_node(node, flags, get_order(size));
if (page)
return page_address(page);
else
return NULL;
ptr = page_address(page);
kmemleak_alloc(ptr, size, 1, flags);
return ptr;
}
#ifdef CONFIG_NUMA
......@@ -2926,6 +2927,7 @@ void kfree(const void *x)
page = virt_to_head_page(x);
if (unlikely(!PageSlab(page))) {
BUG_ON(!PageCompound(page));
kmemleak_free(x);
put_page(page);
return;
}
......
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