tree 457ab54f402b471c5158e8b361d059e88ab8cd62
parent a48d07afdf18212de22b959715b16793c5a6e57a
author Christoph Lameter <clameter@sgi.com> 1138791939 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1138812796 -0800

[PATCH] Direct Migration V9: remove_from_swap() to remove swap ptes

Add remove_from_swap

remove_from_swap() allows the restoration of the pte entries that existed
before page migration occurred for anonymous pages by walking the reverse
maps.  This reduces swap use and establishes regular pte's without the need
for page faults.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>