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ANDROID: Allow vendor modules perform more operations on memleak detect

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Export arch_vma_name, _vm_normal_page, pmd_clear_bad,
__pmd_trans_huge_lock functions. Allow vendor modules perform more
operations on memleak detect and debug. It can detect multiple types
of memleak,such as Native,ION,Slub and Vmalloc. Shows detail size of
memleak, and shows the stack.

Bug: 379962310
Bug: 365506692
Bug: 342305999
Change-Id: I118efa570e660d0696bf081d00b670760d01bec1
Signed-off-by: Dezhi Huang <huangdezhi@hihonor.com>
(cherry picked from commit 21e76b82444db3635eacb360f0d0206a069de4a8)
(cherry picked from commit ce0653fd2cb3b91553870938edd1b854c4975c72)
This commit is contained in:
Dezhi Huang 2024-05-23 15:10:35 +08:00 committed by Suren Baghdasaryan
parent 900cb56f4c
commit e05e6574f7
4 changed files with 4 additions and 0 deletions
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1
kernel/signal.c
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@ -4574,6 +4574,7 @@ __weak const char *arch_vma_name(struct vm_area_struct *vma)
{ {
return NULL; return NULL;
} }
EXPORT_SYMBOL_GPL(arch_vma_name);
static inline void siginfo_buildtime_checks(void) static inline void siginfo_buildtime_checks(void)
{ {

1
mm/huge_memory.c
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@ -1906,6 +1906,7 @@ spinlock_t *__pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma)
spin_unlock(ptl); spin_unlock(ptl);
return NULL; return NULL;
} }
EXPORT_SYMBOL_GPL(__pmd_trans_huge_lock);
/* /*
* Returns true if a given pud maps a thp, false otherwise. * Returns true if a given pud maps a thp, false otherwise.

1
mm/memory.c
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@ -698,6 +698,7 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
out: out:
return pfn_to_page(pfn); return pfn_to_page(pfn);
} }
EXPORT_SYMBOL_GPL(_vm_normal_page);
#ifdef CONFIG_TRANSPARENT_HUGEPAGE #ifdef CONFIG_TRANSPARENT_HUGEPAGE
struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr, struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr,

1
mm/pgtable-generic.c
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@ -50,6 +50,7 @@ void pmd_clear_bad(pmd_t *pmd)
pmd_ERROR(*pmd); pmd_ERROR(*pmd);
pmd_clear(pmd); pmd_clear(pmd);
} }
EXPORT_SYMBOL_GPL(pmd_clear_bad);
#ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS #ifndef __HAVE_ARCH_PTEP_SET_ACCESS_FLAGS
/* /*