• Arnaldo Carvalho de Melo's avatar
    perf tools: Simplify debugfs mountpoint handling code · ebf294bf
    Arnaldo Carvalho de Melo authored
    We don't need to have two PATH_MAX char sized arrays holding it, just
    one in util/debugfs.c will do.
    
    Also rename debugfs_path to tracing_events_path, as it is not the path
    to debugfs, that is debugfs_mountpoint. Both are now accessible.
    
    This will allow accessing this code in the perf python binding without
    having to drag in perf.c and util/parse-events.c.
    
    The defaults for these variables are the canonical "/sys/kernel/debug"
    and "/sys/kernel/debug/tracing/events/", removing the need for simple
    tools to call debugfs_mount(NULL).
    
    Cc: David Ahern <dsahern@gmail.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Mike Galbraith <efault@gmx.de>
    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-ug9jvtjrsqbluuhqqxpvg30f@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    ebf294bf
debugfs.c 4.95 KB