tree 5f34366cd527382489bd0bebbac8d39d59f1d5db
parent 0c942a4539c09adf09097315cc174aefd0eeedf7
author Hugh Dickins <hugh@veritas.com> 1130634954 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1130647236 -0700

[PATCH] mm: zap_pte_range dont dirty anon

zap_pte_range already avoids wasting time to mark_page_accessed on anon pages:
it can also skip anon set_page_dirty - the page only needs to be marked dirty
if shared with another mm, but that will say pte_dirty too.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>