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mm/huge_memory.c: fix used-uninitialized

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Fix used-uninitialized of `page'.

Fixes: dce7d10be4bb ("mm/madvise: optimize lazyfreeing with mTHP in madvise_free")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202406260514.SLhNM9kQ-lkp@intel.com
Cc: Lance Yang <ioworker0@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Andrew Morton 2024-06-25 14:51:36 -07:00
parent f41e355f8b
commit d40f74ab9d
1 changed files with 1 additions and 2 deletions
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3
mm/huge_memory.c
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@ -2696,7 +2696,6 @@ static bool __discard_anon_folio_pmd_locked(struct vm_area_struct *vma,
struct mm_struct *mm = vma->vm_mm;
int ref_count, map_count;
pmd_t orig_pmd = *pmdp;
struct page *page;
if (folio_test_dirty(folio) || pmd_dirty(orig_pmd))
return false;
@ -2732,7 +2731,7 @@ static bool __discard_anon_folio_pmd_locked(struct vm_area_struct *vma,
return false;
}
folio_remove_rmap_pmd(folio, page, vma);
folio_remove_rmap_pmd(folio, pmd_page(orig_pmd), vma);
zap_deposited_table(mm, pmdp);
add_mm_counter(mm, MM_ANONPAGES, -HPAGE_PMD_NR);
if (vma->vm_flags & VM_LOCKED)