commit 537632e0a54a5355cdd0330911d18c3b773f9cf7
author Boaz Harrosh <bharrosh@panasas.com> Wed Jul 11 15:27:13 2012 +0300
committer Boaz Harrosh <bharrosh@panasas.com> Fri Jul 20 11:49:25 2012 +0300
tree 7b4440d84c4dffa50c81a0c8bbb86f8da93748ca
parent 62b62ad873f2accad9222a4d7ffbe1e93f6714c1

ore: Unlock r4w pages in exact reverse order of locking

The read-4-write pages are locked in address ascending order.
But where unlocked in a way easiest for coding. Fix that,
locks should be released in opposite order of locking, .i.e
descending address order.

I have not hit this dead-lock. It was found by inspecting the
dbug print-outs. I suspect there is an higher lock at caller that
protects us, but fix it regardless.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>