tree 851913d2ebd2946b577592fb410f750e6fdc943b
parent f718cd4add5aea9d379faff92f162571e356cc5f
author Jack Steiner <steiner@sgi.com> 1217396033 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1217436107 -0700

mm: add zap_vma_ptes(): a library function to unmap driver ptes

zap_vma_ptes() is intended to be used by drivers to unmap ptes assigned to the
driver private vmas.  This interface is similar to zap_page_range() but is
less general & less likely to be abused.

Needed by the GRU driver.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>