AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

Merge branch 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm

Browse Source 
* '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()
This commit is contained in:
Linus Torvalds 2010-07-19 13:18:34 -07:00
commit 46ac0cc92e
3 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
kernel/early_res.c
View File

@ -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;

5
mm/page_alloc.c
View File

@ -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;
}

7
mm/page_cgroup.c
View File

@ -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 @@ static int __init_refok init_section_page_cgroup(unsigned long pfn)
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