Commit ec3a354b authored by Catalin Marinas's avatar Catalin Marinas

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: default avatarCatalin Marinas <catalin.marinas@arm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Acked-by: default avatarPekka Enberg <penberg@cs.helsinki.fi>
Reviewed-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
parent 53238a60
...@@ -12,6 +12,7 @@ ...@@ -12,6 +12,7 @@
#include <linux/pfn.h> #include <linux/pfn.h>
#include <linux/bootmem.h> #include <linux/bootmem.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/kmemleak.h>
#include <asm/bug.h> #include <asm/bug.h>
#include <asm/io.h> #include <asm/io.h>
...@@ -335,6 +336,8 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr, ...@@ -335,6 +336,8 @@ void __init free_bootmem_node(pg_data_t *pgdat, unsigned long physaddr,
{ {
unsigned long start, end; unsigned long start, end;
kmemleak_free_part(__va(physaddr), size);
start = PFN_UP(physaddr); start = PFN_UP(physaddr);
end = PFN_DOWN(physaddr + size); end = PFN_DOWN(physaddr + size);
...@@ -354,6 +357,8 @@ void __init free_bootmem(unsigned long addr, unsigned long size) ...@@ -354,6 +357,8 @@ void __init free_bootmem(unsigned long addr, unsigned long size)
{ {
unsigned long start, end; unsigned long start, end;
kmemleak_free_part(__va(addr), size);
start = PFN_UP(addr); start = PFN_UP(addr);
end = PFN_DOWN(addr + size); end = PFN_DOWN(addr + size);
...@@ -516,6 +521,7 @@ static void * __init alloc_bootmem_core(struct bootmem_data *bdata, ...@@ -516,6 +521,7 @@ static void * __init alloc_bootmem_core(struct bootmem_data *bdata,
region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) + region = phys_to_virt(PFN_PHYS(bdata->node_min_pfn) +
start_off); start_off);
memset(region, 0, size); memset(region, 0, size);
kmemleak_alloc(region, size, 1, 0);
return region; return region;
} }
......
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