diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2010-07-19 12:54:15 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2010-07-19 12:54:15 +0200 |
| commit | 9078370c0d2cfe4a905aa34f398bbb0d65921a2b (patch) | |
| tree | 0b0d3b1f2a9a6dd2f2deaae9fbf9c8c5509ac13c | |
| parent | kmemleak: Annotate false positive in init_section_page_cgroup() (diff) | |
| download | linux-9078370c0d2cfe4a905aa34f398bbb0d65921a2b.tar.xz linux-9078370c0d2cfe4a905aa34f398bbb0d65921a2b.zip | |
kmemleak: Add support for NO_BOOTMEM configurations
With commits 08677214 and 59be5a8e, alloc_bootmem()/free_bootmem() and
friends use the early_res functions for memory management when
NO_BOOTMEM is enabled. This patch adds the kmemleak calls in the
corresponding code paths for bootmem allocations.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: stable@kernel.org
| -rw-r--r-- | kernel/early_res.c | 6 | ||||
| -rw-r--r-- | mm/page_alloc.c | 5 |
2 files changed, 11 insertions, 0 deletions
diff --git a/kernel/early_res.c b/kernel/early_res.c index 31aa9332ef3f..7bfae887f211 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 @@ void __init free_early(u64 start, u64 end) 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 @@ void __init free_early_partial(u64 start, u64 end) 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 431214b941ac..68319dd20bed 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3659,6 +3659,11 @@ void * __init __alloc_memory_core_early(int nid, u64 size, u64 align, 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; } |