9p: fix mmap to be read-only
authorEric Van Hensbergen <ericvh@opteron.homeip.net>
Thu, 7 Feb 2008 01:25:05 +0000 (19:25 -0600)
committerEric Van Hensbergen <ericvh@opteron.homeip.net>
Thu, 7 Feb 2008 01:25:05 +0000 (19:25 -0600)
commit14b8869ff4f00f105ea76678997b4d49d27baae3
tree201c06c106053c609f847531a482d73e41a8cfc9
parentd199d652c513a010145a5a0d4e64c96361b97bee
9p: fix mmap to be read-only

v9fs was allowing writable mmap which could lead to kernel BUG() cases.
This sets the mmap function to generic_file_readonly_mmap which (correctly)
returns an error to applications which open mmap for writing.

Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
fs/9p/vfs_file.c