• Jon Paul Maloy's avatar
    tipc: reduce usage of context info in socket and link · c5898636
    Jon Paul Maloy authored
    
    
    The most common usage of namespace information is when we fetch the
    own node addess from the net structure. This leads to a lot of
    passing around of a parameter of type 'struct net *' between
    functions just to make them able to obtain this address.
    
    However, in many cases this is unnecessary. The own node address
    is readily available as a member of both struct tipc_sock and
    tipc_link, and can be fetched from there instead.
    The fact that the vast majority of functions in socket.c and link.c
    anyway are maintaining a pointer to their respective base structures
    makes this option even more compelling.
    
    In this commit, we introduce the inline functions tsk_own_node()
    and link_own_node() to make it easy for functions to fetch the node
    address from those structs instead of having to pass along and
    dereference the namespace struct.
    
    In particular, we make calls to the msg_xx() functions in msg.{h,c}
    context independent by directly passing them the own node address
    as parameter when needed. Those functions should be regarded as
    leaves in the code dependency tree, and it is hence desirable to
    keep them namspace unaware.
    
    Apart from a potential positive effect on cache behavior, these
    changes make it easier to introduce the changes that will follow
    later in this series.
    Reviewed-by: Ying Xue's avatarYing Xue <ying.xue@windriver.com>
    Signed-off-by: default avatarJon Maloy <jon.maloy@ericsson.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    c5898636
name_distr.c 11.4 KB