tree db4b0ad1693c2b25da06655b6e7dd409c85ec120
parent b66c5984017533316fd1951770302649baf1aa33
author Marek Szyprowski <m.szyprowski@samsung.com> 1356044718 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1356054019 -0800

mm: cma: WARN if freed memory is still in use

Memory returned to free_contig_range() must have no other references.
Let kernel to complain loudly if page reference count is not equal to 1.

[rientjes@google.com: support sparsemem]
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>