Re: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool

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Subject: Re: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
From: Jason Gunthorpe <jgg@xxxxxxxx>
Date: Wed, 19 Jan 2022 09:17:28 -0400
Cc: Leon Romanovsky <leon@xxxxxxxxxx>, Santosh Shilimkar <santosh.shilimkar@xxxxxxxxxx>, "David S . Miller" <davem@xxxxxxxxxxxxx>, "kuba@xxxxxxxxxx" <kuba@xxxxxxxxxx>, "netdev@xxxxxxxxxxxxxxx" <netdev@xxxxxxxxxxxxxxx>, "linux-rdma@xxxxxxxxxxxxxxx" <linux-rdma@xxxxxxxxxxxxxxx>, "rds-devel@xxxxxxxxxxxxxx" <rds-devel@xxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, Rama Nichanamatlu <rama.nichanamatlu@xxxxxxxxxx>, Rajesh Sivaramasubramaniom <rajesh.sivaramasubramaniom@xxxxxxxxxx>
In-reply-to: <PH0PR10MB551565CBAD2FF5CC0D3C69C48C599@PH0PR10MB5515.namprd10.prod.outlook.com>
References: <1642517238-9912-1-git-send-email-praveen.kannoju@oracle.com> <53D98F26-FC52-4F3E-9700-ED0312756785@oracle.com> <20220118191754.GG8034@ziepe.ca> <CEFD48B4-3360-4040-B41A-49B8046D28E8@oracle.com> <Yee2tMJBd4kC8axv@unreal> <PH0PR10MB5515E99CA5DF423BDEBB038E8C599@PH0PR10MB5515.namprd10.prod.outlook.com> <20220119130450.GJ8034@ziepe.ca> <PH0PR10MB551565CBAD2FF5CC0D3C69C48C599@PH0PR10MB5515.namprd10.prod.outlook.com>

On Wed, Jan 19, 2022 at 01:12:29PM +0000, Praveen Kannoju wrote:

> Yes, we are using the barriers. I was justifying the usage of
> smp_rmb() and smp_wmb() over smp_load_acquire() and
> smp_store_release() in the patch.

You failed to justify it.

Jason

Follow-Ups:
- RE: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Praveen Kannoju

References:
- [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Praveen Kumar Kannoju
- Re: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Santosh Shilimkar
- Re: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Jason Gunthorpe
- Re: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Santosh Shilimkar
- Re: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Leon Romanovsky
- RE: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Praveen Kannoju
- Re: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Jason Gunthorpe
- RE: [PATCH RFC] rds: ib: Reduce the contention caused by the asynchronous workers to flush the mr pool
  - From: Praveen Kannoju

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