• Ingo Molnar's avatar
    perf_counter: Separate out attr->type from attr->config · a21ca2ca
    Ingo Molnar authored
    Counter type is a frequently used value and we do a lot of
    bit juggling by encoding and decoding it from attr->config.
    
    Clean this up by creating a separate attr->type field.
    
    Also clean up the various similarly complex user-space bits
    all around counter attribute management.
    
    The net improvement is significant, and it will be easier
    to add a new major type (which is what triggered this cleanup).
    
    (This changes the ABI, all tools are adapted.)
    (PowerPC build-tested.)
    
    Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
    Cc: Marcelo Tosatti <mtosatti@redhat.com>
    Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
    LKML-Reference: <new-submission>
    Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
    a21ca2ca
builtin-top.c 15.8 KB