tree a76bb7fb8e092250c4399c20f0c7c973b77cb0bb
parent 6237bcd94851e9cf0ecd2520d744779df0f5a9a6
author Hugh Dickins <hugh@veritas.com> 1130634955 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1130647236 -0700

[PATCH] mm: anon is already wrprotected

do_anonymous_page's pte_wrprotect causes some confusion: in such a case,
vm_page_prot must already be forcing COW, so must omit write permission, and
so the pte_wrprotect is redundant.  Replace it by a comment to that effect,
and reword the comment on unuse_pte which also caused confusion.

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