tree 6c98aa227c5cfdc9fb51ddf53c4497127beb3ca1
parent bfa5bf6d6446f0028187a727f792fbc7934228ad
author Nick Piggin <npiggin@suse.de> 1159252283 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159285728 -0700

[PATCH] mm: remove_mapping() safeness

Some users of remove_mapping had been unsafe.

Modify the remove_mapping precondition to ensure the caller has locked the
page and obtained the correct mapping.  Modify callers to ensure the
mapping is the correct one.

[hugh@veritas.com: swapper_space fix]
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>