Re: [Cluster-devel] [GFS2 PATCH 2/2] GFS2: Take advantage of new EXSH glock mode for rgrps

2018-04-19 Thread Steven Whitehouse
Hi, On 18/04/18 20:39, Bob Peterson wrote: - Original Message - Hi, On 18/04/18 17:58, Bob Peterson wrote: This patch switches rgrp locking to EXSH mode so that it's only taken when the rgrp is added to an active transaction, or when blocks are being reserved. As soon as the

Re: [Cluster-devel] [GFS2 PATCH 1/2] GFS2: Introduce EXSH (exclusively shared on one node)

2018-04-19 Thread Steven Whitehouse
Hi, On 18/04/18 20:32, Bob Peterson wrote: - Original Message - Hi, On 18/04/18 17:58, Bob Peterson wrote: This patch is a first step in rgrp sharing. It allows for a new type of glock mode called EXSH, which stands for a lock that is Exclusive to one node, but shared amongst