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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-01-29 09:08:13 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-01-29 16:24:40 -0200
commit7bb41152b9be7e31f10d8919bce5034135525d9d (patch)
tree4a79423cd6f01f5e61251e6058ed41427230f63b /tools/perf/util/evsel.c
parentef2bf6d043ac9bd4a6f38d862af407154a4754d9 (diff)
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perf evlist: Support non overwrite mode in perf_evlist__read_on_cpu
I.e. stash the overwrite mode in struct perf_evlist and act accordingly in perf_evlist__read_on_cpu, not checking for overwrites and touching the tail after consuming one event, like perf record does, for instance. 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: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evsel.c')
-rw-r--r--tools/perf/util/evsel.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 76ab553637d6..f98b3e585039 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -327,6 +327,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, struct cpu_map *cpus,
perf_evlist__alloc_pollfd(evlist, cpus->nr, threads->nr) < 0)
return -ENOMEM;
+ evlist->overwrite = overwrite;
evlist->mmap_len = (pages + 1) * page_size;
first_evsel = list_entry(evlist->entries.next, struct perf_evsel, node);