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Date:   Tue,  7 May 2019 23:06:38 -0700
From:   Bjorn Andersson <>
To:     "David S. Miller" <>,
        Arun Kumar Neelakantam <>,
        Chris Lew <>
Subject: [PATCH 0/5] QRTR flow control improvements

In order to prevent overconsumption of resources on the remote side QRTR
implements a flow control mechanism.

Move the handling of the incoming confirm_rx to the receiving process to ensure
incoming flow is controlled. Then implement outgoing flow control, using the
recommended algorithm of counting outstanding non-confirmed messages and
blocking when hitting a limit. The last three patches refactors the node
assignment and port lookup, in order to remove the worker in the receive path.

Bjorn Andersson (5):
  net: qrtr: Move resume-tx transmission to recvmsg
  net: qrtr: Implement outgoing flow control
  net: qrtr: Migrate node lookup tree to spinlock
  net: qrtr: Make qrtr_port_lookup() use RCU
  net: qrtr: Remove receive worker

 net/qrtr/qrtr.c | 265 +++++++++++++++++++++++++++++++++++-------------
 1 file changed, 196 insertions(+), 69 deletions(-)


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