tree 3e02ab4b6c6a77973ca10bcd6a54c57d17fc9f89
parent 58bda1da4b3c3ec6da8d0badaba12ce02839a241
author Al Viro <viro@zeniv.linux.org.uk> 1391393394 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1396408759 -0400

pipe: kill ->map() and ->unmap()

all pipe_buffer_operations have the same instances of those...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>