linux-kernel - Re: [PATCH net-next v2 0/6] net/smc: Introduce virtually contiguous buffers for SMC-R

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Message-Id: <165814081662.19605.4498154287965722155.git-patchwork-notify@kernel.org>
Date:   Mon, 18 Jul 2022 10:40:16 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Wen Gu <guwen@...ux.alibaba.com>
Cc:     kgraul@...ux.ibm.com, wenjia@...ux.ibm.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        linux-s390@...r.kernel.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v2 0/6] net/smc: Introduce virtually contiguous
 buffers for SMC-R

Hello:

This series was applied to netdev/net-next.git (master)
by David S. Miller <davem@...emloft.net>:

On Thu, 14 Jul 2022 17:43:59 +0800 you wrote:
> On long-running enterprise production servers, high-order contiguous
> memory pages are usually very rare and in most cases we can only get
> fragmented pages.
> 
> When replacing TCP with SMC-R in such production scenarios, attempting
> to allocate high-order physically contiguous sndbufs and RMBs may result
> in frequent memory compaction, which will cause unexpected hung issue
> and further stability risks.
> 
> [...]

Here is the summary with links:
  - [net-next,v2,1/6] net/smc: remove redundant dma sync ops
    https://git.kernel.org/netdev/net-next/c/6d52e2de6415
  - [net-next,v2,2/6] net/smc: optimize for smc_sndbuf_sync_sg_for_device and smc_rmb_sync_sg_for_cpu
    https://git.kernel.org/netdev/net-next/c/0ef69e788411
  - [net-next,v2,3/6] net/smc: Introduce a sysctl for setting SMC-R buffer type
    https://git.kernel.org/netdev/net-next/c/4bc5008e4387
  - [net-next,v2,4/6] net/smc: Use sysctl-specified types of buffers in new link group
    https://git.kernel.org/netdev/net-next/c/b984f370ed51
  - [net-next,v2,5/6] net/smc: Allow virtually contiguous sndbufs or RMBs for SMC-R
    https://git.kernel.org/netdev/net-next/c/b8d199451c99
  - [net-next,v2,6/6] net/smc: Extend SMC-R link group netlink attribute
    https://git.kernel.org/netdev/net-next/c/ddefb2d20553

You are awesome, thank you!
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