tree b1741de6753ec41a45a7b69276eeccb1bcb3e46d
parent 910e46da4b4e93d56ffea318c64afa41868d5e6d
author David Howells <dhowells@redhat.com> 1159347018 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159370774 -0700

[PATCH] NOMMU: Check VMA protections

Check the VMA protections in get_user_pages() against what's being asked.

This checks to see that we don't accidentally write on a non-writable VMA or
permit an I/O mapping VMA to be accessed (which may lack page structs).

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>