• Arnaldo Carvalho de Melo's avatar
    perf hists: Introduce hists__link · 494d70a1
    Arnaldo Carvalho de Melo authored
    That given two hists will find the hist_entries (buckets) in the second
    hists that are for the same bucket in the first and link them, then it
    will look for all buckets in the second that don't have a counterpart in
    the first and will create a dummy counterpart that will then be linked
    to the entry in the second.
    
    For multiple events this will be done pairing the leader with all the
    other events in the group, so that in the end the leader will have all
    the buckets in all the hists in a group, dummy or not while the other
    hists will be left untouched.
    
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Namhyung Kim <namhyung@gmail.com>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Link: http://lkml.kernel.org/n/tip-l9l9ieozqdhn9lieokd95okw@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    494d70a1
hist.h 6.38 KB