tree ec973feb3da78d91386725321ee3108d050176d5
parent 2dbafdc012d3ea81a97fec6226ca82d644539c9a
author Kevin Wolf <kwolf@redhat.com> 1386173330 +0100
committer Kevin Wolf <kwolf@redhat.com> 1390581602 +0100

block: Make overlap range for serialisation dynamic

Copy on Read wants to serialise with all requests touching the same
cluster, so wait_serialising_requests() rounded to cluster boundaries.
Other users like alignment RMW will have different requirements, though
(requests touching the same sector), so make it dynamic.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>