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

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Message-ID: <1682384563-2-1-git-send-email-lizhijian@fujitsu.com>
Date:   Tue, 25 Apr 2023 01:02:40 +0000
From:   Li Zhijian <lizhijian@...itsu.com>
To:     <haris.iqbal@...os.com>, <jinpu.wang@...os.com>,
        <linux-rdma@...r.kernel.org>
CC:     <jgg@...pe.ca>, <leon@...nel.org>, <guoqing.jiang@...ux.dev>,
        <linux-kernel@...r.kernel.org>, Li Zhijian <lizhijian@...itsu.com>
Subject: [PATCH for-next v3 0/3] RDMA/rtrs: bugfix and cleanups

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

 drivers/infiniband/ulp/rtrs/rtrs-clt.c | 56 +++++++++++---------------
 drivers/infiniband/ulp/rtrs/rtrs.c     |  4 +-
 2 files changed, 26 insertions(+), 34 deletions(-)

-- 
2.29.2