Merge branch 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm
* 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm:
kmemleak: Add support for NO_BOOTMEM configurations
kmemleak: Annotate false positive in init_section_page_cgroup()
diff --git a/kernel/early_res.c b/kernel/early_res.c
index 31aa933..7bfae88 100644
--- a/kernel/early_res.c
+++ b/kernel/early_res.c
@@ -7,6 +7,8 @@
#include <linux/bootmem.h>
#include <linux/mm.h>
#include <linux/early_res.h>
+#include <linux/slab.h>
+#include <linux/kmemleak.h>
/*
* Early reserved memory areas.
@@ -319,6 +321,8 @@
struct early_res *r;
int i;
+ kmemleak_free_part(__va(start), end - start);
+
i = find_overlapped_early(start, end);
r = &early_res[i];
if (i >= max_early_res || r->end != end || r->start != start)
@@ -333,6 +337,8 @@
struct early_res *r;
int i;
+ kmemleak_free_part(__va(start), end - start);
+
if (start == end)
return;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 431214b..68319dd 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3659,6 +3659,11 @@
ptr = phys_to_virt(addr);
memset(ptr, 0, size);
reserve_early_without_check(addr, addr + size, "BOOTMEM");
+ /*
+ * The min_count is set to 0 so that bootmem allocated blocks
+ * are never reported as leaks.
+ */
+ kmemleak_alloc(ptr, size, 0, 0);
return ptr;
}
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 6c00814..5bffada 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -9,6 +9,7 @@
#include <linux/vmalloc.h>
#include <linux/cgroup.h>
#include <linux/swapops.h>
+#include <linux/kmemleak.h>
static void __meminit
__init_page_cgroup(struct page_cgroup *pc, unsigned long pfn)
@@ -126,6 +127,12 @@
if (!base)
base = vmalloc(table_size);
}
+ /*
+ * The value stored in section->page_cgroup is (base - pfn)
+ * and it does not point to the memory block allocated above,
+ * causing kmemleak false positives.
+ */
+ kmemleak_not_leak(base);
} else {
/*
* We don't have to allocate page_cgroup again, but
