teach nfs_get_link() to work in RCU mode

based upon the corresponding patch from Neil's March patchset,
again with kmap-related horrors removed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-11-17 21:14:24 -05:00
commit 0d0def49d0
3 changed files with 42 additions and 10 deletions