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Merge branch 'kmemleak' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-2.6-cm
* '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()
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commit
46ac0cc92e
3 changed files with 18 additions and 0 deletions
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@ -7,6 +7,8 @@
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#include <linux/bootmem.h>
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#include <linux/mm.h>
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#include <linux/early_res.h>
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#include <linux/slab.h>
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#include <linux/kmemleak.h>
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/*
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* Early reserved memory areas.
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@ -319,6 +321,8 @@ void __init free_early(u64 start, u64 end)
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struct early_res *r;
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int i;
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kmemleak_free_part(__va(start), end - start);
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i = find_overlapped_early(start, end);
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r = &early_res[i];
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if (i >= max_early_res || r->end != end || r->start != start)
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@ -333,6 +337,8 @@ void __init free_early_partial(u64 start, u64 end)
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struct early_res *r;
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int i;
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kmemleak_free_part(__va(start), end - start);
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if (start == end)
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return;
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@ -3659,6 +3659,11 @@ void * __init __alloc_memory_core_early(int nid, u64 size, u64 align,
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ptr = phys_to_virt(addr);
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memset(ptr, 0, size);
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reserve_early_without_check(addr, addr + size, "BOOTMEM");
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/*
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* The min_count is set to 0 so that bootmem allocated blocks
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* are never reported as leaks.
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*/
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kmemleak_alloc(ptr, size, 0, 0);
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return ptr;
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}
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@ -9,6 +9,7 @@
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#include <linux/vmalloc.h>
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#include <linux/cgroup.h>
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#include <linux/swapops.h>
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#include <linux/kmemleak.h>
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static void __meminit
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__init_page_cgroup(struct page_cgroup *pc, unsigned long pfn)
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@ -126,6 +127,12 @@ static int __init_refok init_section_page_cgroup(unsigned long pfn)
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if (!base)
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base = vmalloc(table_size);
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}
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/*
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* The value stored in section->page_cgroup is (base - pfn)
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* and it does not point to the memory block allocated above,
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* causing kmemleak false positives.
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*/
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kmemleak_not_leak(base);
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} else {
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/*
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* We don't have to allocate page_cgroup again, but
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