Parav Pandit 33f93e1ebc IB/cm: Fix sleeping while spin lock is held
In case of LAP are used for RoCE, it can lead to a problem of sleeping a
context while spin lock is held in below flow.

cm_lap_handler
	->spin_lock
	-> <..switch_case..>
	-> cm_init_av_for_response
		-> ib_init_ah_from_wc
			-> rdma_addr_find_l2_eth_by_grh
				wait_for_completion()

Therefore ah attribute initialization is done for incoming lap requests
outside of the lock context.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2017-12-18 15:37:11 -07:00
..
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