pipe: fix comment in pipe_buf_operations

Map and unmap ops no longer exist.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Miklos Szeredi 2016-09-27 10:45:13 +02:00 • committed by Al Viro
commit a949e63992