kmemleak: Add callbacks to the bootmem allocator
This patch adds kmemleak_alloc/free callbacks to the bootmem allocator.
This would allow scanning of such blocks and help avoiding a whole class
of false positives and more kmemleak annotations.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>
diff --git a/mm/bootmem.c b/mm/bootmem.c
index d2a9ce9..701740c 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -12,6 +12,7 @@
#include <linux/pfn.h>
#include <linux/bootmem.h>
#include <linux/module.h>
+#include <linux/kmemleak.h>
#include <asm/bug.h>
#include <asm/io.h>
@@ -335,6 +336,8 @@
{
unsigned long start, end;
+ kmemleak_free_part(__va(physaddr), size);
+
start = PFN_UP(physaddr);
end = PFN_DOWN(physaddr + size);
@@ -354,6 +357,8 @@
{
unsigned long start, end;
+ kmemleak_free_part(__va(addr), size);
+
start = PFN_UP(addr);
end = PFN_DOWN(addr + size);
@@ -516,6 +521,7 @@
region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) +
start_off);
memset(region, 0, size);
+ kmemleak_alloc(region, size, 1, 0);
return region;
}