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  • Jon Paul Maloy's avatar
    tipc: make media xmit call outside node spinlock context · af9b028e
    Jon Paul Maloy authored
    Currently, message sending is performed through a deep call chain,
    where the node spinlock is grabbed and held during a significant
    part of the transmission time. This is clearly detrimental to
    overall throughput performance; it would be better if we could send
    the message after the spinlock has been released.
    In this commit, we do instead let the call revert on the stack after
    the buffer chain has been added to the transmission queue, whereafter
    clones of the buffers are transmitted to the device layer outside the
    spinlock scope.
    As a further step in our effort to separate the roles of the node
    and link entities we also move the function tipc_link_xmit() to
    node.c, and rename it to tipc_node_xmit().
    Reviewed-by: default avatarYing Xue <>
    Signed-off-by: default avatarJon Maloy <>
    Signed-off-by: default avatarDavid S. Miller <>