mm: more checks on free_pages_prepare() for tail pages

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Although it was not called, destroy_compound_page() did some potentially
useful checks.  Let's re-introduce them in free_pages_prepare(), where
they can be actually triggered when CONFIG_DEBUG_VM=y.

compound_order() assert is already in free_pages_prepare().  We have few
checks for tail pages left.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Kirill A. Shutemov 2015-02-11 15:25:52 -08:00 • committed by Linus Torvalds

parent 6e9f0d582d

commit 81422f29c5

1 changed files with 23 additions and 4 deletions

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mm/page_alloc.c

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