• Arnaldo Carvalho de Melo's avatar
    perf tools: Fixup exit path when not able to open events · c286c419
    Arnaldo Carvalho de Melo authored
    We have to deal with the TUI mode in perf top, so that we don't end up
    with a garbled screen when, say, a non root user on a machine with a
    paranoid setting (the default) tries to use 'perf top'.
    
    Introduce a ui__warning_paranoid() routine shared by top and record that
    tells the user the valid values for /proc/sys/kernel/perf_event_paranoid.
    
    Cc: David Ahern <daahern@cisco.com>
    Cc: Frederic Weisbecker <fweisbec@gmail.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Mike Galbraith <efault@gmx.de>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Tom Zanussi <tzanussi@gmail.com>
    LKML-Reference: <new-submission>
    Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    c286c419
debug.c 2.04 KB