tree 711a15d188b6679026ae818bd0635d271820ea7e
parent 31e855ea7173bdb0520f9684580423a9560f66e0
author Hugh Dickins <hugh.dickins@tiscali.co.uk> 1260842358 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1260895999 -0800

ksm: cleanup some function arguments

Cleanup: make argument names more consistent from cmp_and_merge_page()
down to replace_page(), so that it's easier to follow the rmap_item's page
and the matching tree_page and the merged kpage through that code.

In some places, e.g.  break_cow(), pass rmap_item instead of separate mm
and address.

cmp_and_merge_page() initialize tree_page to NULL, to avoid a "may be used
uninitialized" warning seen in one config by Anil SB.

Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Izik Eidus <ieidus@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>