tree 87ee41d4351d2ecd1a8affeb563e3e8aca2961d2
parent 6e9f0d582dde095d971a3c6ce4685a218a0eac8e
author Kirill A. Shutemov <kirill.shutemov@linux.intel.com> 1423697152 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1423703162 -0800

mm: more checks on free_pages_prepare() for tail pages

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>