net/smc: guarantee reset of write_blocked for heavy workload
authorUrsula Braun <ubraun@linux.vnet.ibm.com>
Mon, 10 Apr 2017 12:57:59 +0000 (14:57 +0200)
committerDavid S. Miller <davem@davemloft.net>
Wed, 12 Apr 2017 03:01:14 +0000 (23:01 -0400)
commit90cacb2ea60c37b9a413a2d7dcb244c3d397c060
tree89f9ba792ee7110c89dd5a61345d77a854bdce13
parent5da7e4d35507992da2af6c89434c33a69802de9c
net/smc: guarantee reset of write_blocked for heavy workload

If peer indicates write_blocked, the cursor state of the received data
should be send to the peer immediately (in smc_tx_consumer_update()).
Afterwards the write_blocked indicator is cleared.

If there is no free slot for another write request, sending is postponed
to worker smc_tx_work, and the write_blocked indicator is not cleared.
Therefore another clearing check is needed in smc_tx_work().

Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/smc/smc_tx.c