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authorCatalin Marinas <catalin.marinas@arm.com>2009-07-07 10:33:01 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2009-07-08 14:25:14 +0100
commitec3a354bd46cbdaa7933ba57a142ee2d2dbde0e5 (patch)
tree7ca4fc5d3ade825a73d9d0d1eb5f0b5e5cccb26d /mm/bootmem.c
parent53238a60dd4a679f6fe5613a7ed46899587205cf (diff)
downloadlinux-ec3a354bd46cbdaa7933ba57a142ee2d2dbde0e5.tar.gz
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>
Diffstat (limited to 'mm/bootmem.c')
-rw-r--r--mm/bootmem.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/bootmem.c b/mm/bootmem.c
index d2a9ce95276..701740c9e81 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 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
{
unsigned long start, end;
+ kmemleak_free_part(__va(physaddr), size);
+
start = PFN_UP(physaddr);
end = PFN_DOWN(physaddr + size);
@@ -354,6 +357,8 @@ void __init free_bootmem(unsigned long addr, unsigned long size)
{
unsigned long start, end;
+ kmemleak_free_part(__va(addr), size);
+
start = PFN_UP(addr);
end = PFN_DOWN(addr + size);
@@ -516,6 +521,7 @@ find_block:
region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) +
start_off);
memset(region, 0, size);
+ kmemleak_alloc(region, size, 1, 0);
return region;
}