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tile: handle pgtable_page_ctor() fail

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Signed-off-by: Kirill A. Shutemov <[email protected]>
Acked-by: Chris Metcalf <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Kirill A. Shutemov 2013-11-14 14:31:43 -08:00 • committed by Linus Torvalds
commit 76b3aec332
1 changed files with 5 additions and 1 deletions
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6
arch/tile/mm/pgtable.c
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@ -241,6 +241,11 @@ struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address,
if (p == NULL)
return NULL;
if (!pgtable_page_ctor(p)) {
__free_pages(p, L2_USER_PGTABLE_ORDER);
return NULL;
}
/*
* Make every page have a page_count() of one, not just the first.
* We don't use __GFP_COMP since it doesn't look like it works
@ -251,7 +256,6 @@ struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address,
inc_zone_page_state(p+i, NR_PAGETABLE);
}
pgtable_page_ctor(p);
return p;
}