perf_counter tools: Use fork and remove munmap events

Use fork events to clone comm and map data and remove everything
munmap related

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 0 insertions, 21 deletions

diff --git a/Documentation/perf_counter/builtin-top.c b/Documentation/perf_counter/builtin-top.c
index 20e5b1200959..31c00ba99b14 100644
--- a/Documentation/perf_counter/builtin-top.c
+++ b/Documentation/perf_counter/builtin-top.c
@@ -75,8 +75,6 @@ static unsigned int		realtime_prio			=  0;
 static int                      group                           =  0;
 static unsigned int             page_size;
 static unsigned int             mmap_pages                      =  16;
-static int                      use_mmap                        = 0;
-static int                      use_munmap                      = 0;
 static int                      freq                            = 0;
 
 static char                     *sym_filter;
@@ -527,19 +525,6 @@ static void mmap_read(struct mmap_data *md)
                 if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) {
                         if (event->header.type & PERF_SAMPLE_IP)
                                 process_event(event->ip.ip, md->counter);
-                } else {
-                        switch (event->header.type) {
-                                case PERF_EVENT_MMAP:
-                                case PERF_EVENT_MUNMAP:
-                                        printf("%s: %Lu %Lu %Lu %s\n",
-                                                        event->header.type == PERF_EVENT_MMAP
-                                                        ? "mmap" : "munmap",
-                                                        event->mmap.start,
-                                                        event->mmap.len,
-                                                        event->mmap.pgoff,
-                                                        event->mmap.filename);
-                                        break;
-                        }
                 }
         }
 
@@ -569,8 +554,6 @@ static int __cmd_top(void)
                         attr.config             = event_id[counter];
                         attr.sample_period      = event_count[counter];
                         attr.sample_type        = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
-                        attr.mmap               = use_mmap;
-                        attr.munmap             = use_munmap;
                         attr.freq               = freq;
 
                         fd[i][counter] = sys_perf_counter_open(&attr, target_pid, cpu, group_fd, 0);
@@ -670,10 +653,6 @@ static const struct option options[] = {
                     "only display symbols matchig this pattern"),
         OPT_BOOLEAN('z', "zero", &group,
                     "zero history across updates"),
-        OPT_BOOLEAN('M', "use-mmap", &use_mmap,
-                    "track mmap events"),
-        OPT_BOOLEAN('U', "use-munmap", &use_munmap,
-                    "track munmap events"),
         OPT_INTEGER('F', "freq", &freq,
                     "profile at this frequency"),
         OPT_INTEGER('E', "entries", &print_entries,