tree 6dfcb724b0ed7b2cb9b33c0c18933f0d915bc966
parent 6218cf4410cfce7bc7e89834e73525b124625d4c
author Hugh Dickins <hugh@veritas.com> 1141954414 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> 1141962456 -0800

[PATCH] page_add_file_rmap(): remove BUG_ON()s

Remove two early-development BUG_ONs from page_add_file_rmap.

The pfn_valid test (originally useful for checking that nobody passed an
artificial struct page) comes too late, since we already have the struct
page.

The PageAnon test (useful when anon was first distinguished from file rmap)
prevents ->nopage implementations from reusing ->mapping, which would
otherwise be available.

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