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author | Huang Ying <ying.huang@intel.com> | 2011-01-30 06:15:49 +0300 |
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committer | Marcelo Tosatti <mtosatti@redhat.com> | 2011-03-17 19:08:27 +0300 |
commit | f58c9df78c0360f0eb3852b9cc3a61e689bc2dd1 (patch) | |
tree | 378a97ad8e857d73ae6762312c7bcb1cf5efd4bc /mm/memory-failure.c | |
parent | fafc3dbaac6447ab8f78d2f7f32a521b24fc6b36 (diff) | |
download | linux-f58c9df78c0360f0eb3852b9cc3a61e689bc2dd1.tar.xz |
mm: remove is_hwpoison_address
Unused.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'mm/memory-failure.c')
-rw-r--r-- | mm/memory-failure.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 0207c2f6f8bd..99ccb4472623 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -1487,35 +1487,3 @@ done: /* keep elevated page count for bad page */ return ret; } - -/* - * The caller must hold current->mm->mmap_sem in read mode. - */ -int is_hwpoison_address(unsigned long addr) -{ - pgd_t *pgdp; - pud_t pud, *pudp; - pmd_t pmd, *pmdp; - pte_t pte, *ptep; - swp_entry_t entry; - - pgdp = pgd_offset(current->mm, addr); - if (!pgd_present(*pgdp)) - return 0; - pudp = pud_offset(pgdp, addr); - pud = *pudp; - if (!pud_present(pud) || pud_large(pud)) - return 0; - pmdp = pmd_offset(pudp, addr); - pmd = *pmdp; - if (!pmd_present(pmd) || pmd_large(pmd)) - return 0; - ptep = pte_offset_map(pmdp, addr); - pte = *ptep; - pte_unmap(ptep); - if (!is_swap_pte(pte)) - return 0; - entry = pte_to_swp_entry(pte); - return is_hwpoison_entry(entry); -} -EXPORT_SYMBOL_GPL(is_hwpoison_address); |