linux-kernel - Re: [PATCH for-next v3 0/3] RDMA/rtrs: bugfix and cleanups

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Date:   Thu, 1 Jun 2023 14:22:51 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Li Zhijian <lizhijian@...itsu.com>
Cc:     haris.iqbal@...os.com, jinpu.wang@...os.com,
        linux-rdma@...r.kernel.org, leon@...nel.org,
        guoqing.jiang@...ux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH for-next v3 0/3] RDMA/rtrs: bugfix and cleanups

On Tue, Apr 25, 2023 at 01:02:40AM +0000, Li Zhijian wrote:
> V3:
>  - minor comments fixes and add tags
> 
> V2:
> - Add new patch2 to fix a memory leak
> - rewrite original patch2 to patch3 by refactoring the cleanup path instead of
>   introducing a new flag
> - Drop original patch3: RDMA/rtrs: Fix use-after-free in rtrs_clt_rdma_cm_handler
>   The problem it tried to addressing doesn't appear after the new patch3
>   where it adjust the cleanup order
> 
> It's trying to fix 1 issue triggered by the following script which
> connect/disconnect rnbd frequently.
> 
> # cat rnbd-self.sh 
> #!/bin/bash
> 
> /root/rpma/tools/config_softroce.sh eth0
> modprobe rnbd_server
> modprobe rnbd_client
> 
> while true;
> do
>         echo "sessname=xyz path=ip:<server-ip> device_path=/dev/nvme0n1" > /sys/devices/virtual/rnbd-client/ctl/map_device
>         for i in /sys/block/rnbd*/rnbd/unmap_device
>         do
>                 echo "normal" > $i
>         done
> done
> 
> Li Zhijian (3):
>   RDMA/rtrs: remove duplicate cq_num assignment

I took this to for-next

>   RDMA/rtrs: Fix the last iu->buf leak in err path
>   RDMA/rtrs: Fix rxe_dealloc_pd warning

And these to for-rc

Thanks,
Jason