new helper: readlink_copy()

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

diff --cc fs/namei.c
Simple merge

diff --cc fs/proc/namespaces.c
Simple merge

diff --cc fs/proc/self.c
Simple merge

diff --cc fs/xfs/xfs_ioctl.c
Simple merge

diff --cc include/linux/fs.h
Simple merge