Split the callchain code from the perf events core into
a new kernel/events/callchain.c file.
This simplifies a bit the big core.c
Signed-off-by: Borislav Petkov
Cc: Arnaldo Carvalho de Melo
Cc: Stephane Eranian
[keep ctx recursion handling inline and use internal headers]
Signed-off-by: Frederic Weisbecker
Signed-off-by: Peter Zijlstra
Link: http://lkml.kernel.org/r/1318778104-17152-1-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar