rds: Fix inaccurate accounting of unsignaled wrs
The number of unsignaled work-requests posted to the IB send queue is tracked by a counter in the rds_ib_connection struct. When it reaches zero, or the caller explicitly asks for it, the send-signaled bit is set in send_flags and the counter is reset. This is performed by the rds_ib_set_wr_signal_state() function. However, this function is not always used which yields inaccurate accounting. This commit fixes this, re-factors a code bloat related to the matter, and makes the actual parameter type to the function consistent. Signed-off-by: NHåkon Bugge <haakon.bugge@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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