nfs: handle overlapping reqs in lock_and_join

This is needed for mirrored DS support, where multuple requests
cover the same range.

Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
This commit is contained in:
Weston Andros Adamson 2014-09-05 16:34:29 -04:00 • committed by Tom Haynes
commit 309a1d65b1