Re: [BUG BISECT] NFSv4 client fails on Flush Journal to Persistent Storage

2018-07-25 Thread Chuck Lever
> On Jul 25, 2018, at 9:27 AM, Krzysztof Kozlowski wrote: > > On 18 June 2018 at 18:20, Chuck Lever wrote: >> >> The extra serialization appears to have a reproducible performance >> impact on RDMA, which no longer takes the reserve_lock when allocating >> a slot. >> >> I could put an xprt_

Re: [BUG BISECT] NFSv4 client fails on Flush Journal to Persistent Storage

2018-07-25 Thread Krzysztof Kozlowski
On 18 June 2018 at 18:20, Chuck Lever wrote: > > The extra serialization appears to have a reproducible performance > impact on RDMA, which no longer takes the reserve_lock when allocating > a slot. > > I could put an xprt_alloc_xid call in xprt_alloc_slot, but that would > only work for socket-ba