tree ed3ca7fb7316f96e7aab23f9563523521bed3259
parent 3592ac444017996f5a8ecf85856af0a8938e8fd1
author Al Viro <viro@zeniv.linux.org.uk> 1360642837 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1361864767 -0500

d_hash_and_lookup(): export, switch open-coded instances

* calling conventions change - ERR_PTR() is returned on ->d_hash() errors;
NULL is just for dcache miss now.
* exported, open-coded instances in ncpfs and cifs converted.

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