David Howells a0753c2900 afs: Support RCU pathwalk
Make afs_permission() and afs_d_revalidate() do initial checks in RCU-mode
pathwalk to reduce latency in pathwalk elements that get done multiple
times.  We don't need to query the server unless we've received a
notification from it that something has changed or the callback has
expired.

This requires that we can request a key and check permits under RCU
conditions if we need to.

Signed-off-by: David Howells <dhowells@redhat.com>
2019-09-02 11:43:54 +01:00
..
2019-07-08 19:36:47 -07:00
2019-06-20 18:12:17 +01:00
2019-08-22 13:33:26 +01:00
2019-09-02 11:43:54 +01:00
2019-07-08 19:36:47 -07:00
2019-07-10 20:55:33 -07:00
2019-07-10 20:55:33 -07:00
2019-09-02 11:43:54 +01:00
2019-07-10 20:55:33 -07:00
2019-07-10 20:55:33 -07:00
2019-07-10 20:55:33 -07:00