提交 c257ea6f 编写于 作者: B Bart Van Assche 提交者: Doug Ledford

IB/srp: Handle partial connection success correctly

Avoid that the following kernel warning is reported if the SRP
target system accepts fewer channels per connection than what
was requested by the initiator system:

WARNING: at drivers/infiniband/ulp/srp/ib_srp.c:617 srp_destroy_qp+0xb1/0x120 [ib_srp]()
Call Trace:
[<ffffffff8105d67f>] warn_slowpath_common+0x7f/0xc0
[<ffffffff8105d6da>] warn_slowpath_null+0x1a/0x20
[<ffffffffa05419e1>] srp_destroy_qp+0xb1/0x120 [ib_srp]
[<ffffffffa05445fb>] srp_create_ch_ib+0x19b/0x420 [ib_srp]
[<ffffffffa0545257>] srp_create_target+0x7d7/0xa94 [ib_srp]
[<ffffffff8138dac0>] dev_attr_store+0x20/0x30
[<ffffffff812079ef>] sysfs_write_file+0xef/0x170
[<ffffffff81191fc4>] vfs_write+0xb4/0x130
[<ffffffff8119276f>] sys_write+0x5f/0xa0
[<ffffffff815a0a59>] system_call_fastpath+0x16/0x1b
Signed-off-by: NBart Van Assche <bart.vanassche@sandisk.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Sebastian Parschauer <sebastian.riemer@profitbricks.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: NDoug Ledford <dledford@redhat.com>
上级 e6300cbd
......@@ -3263,7 +3263,7 @@ static ssize_t srp_create_target(struct device *dev,
srp_free_ch_ib(target, ch);
srp_free_req_data(target, ch);
target->ch_count = ch - target->ch;
break;
goto connected;
}
}
......@@ -3273,6 +3273,7 @@ static ssize_t srp_create_target(struct device *dev,
node_idx++;
}
connected:
target->scsi_host->nr_hw_queues = target->ch_count;
ret = srp_add_target(host, target);
......
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