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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-01-11 22:30:02 -0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-01-22 19:56:28 -0200
commit5c581041cf97aa7980b442de81ddea8273d6dcde (patch)
treeceb2f13de102215d151adf7aaab975bd0db6076b /tools/perf/util/evlist.c
parent361c99a661a78ed22264649440e87fe4fe8da1f2 (diff)
downloadblackbird-op-linux-5c581041cf97aa7980b442de81ddea8273d6dcde.tar.gz
blackbird-op-linux-5c581041cf97aa7980b442de81ddea8273d6dcde.zip
perf evlist: Adopt the pollfd array
Allocating just the space needed for nr_cpus * nr_threads * nr_evsels, not the MAX_NR_CPUS and counters. LKML-Reference: <new-submission> 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> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/evlist.c')
-rw-r--r--tools/perf/util/evlist.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 7b4faec23737..2abf949259d0 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1,3 +1,4 @@
+#include <poll.h>
#include "evlist.h"
#include "evsel.h"
#include "util.h"
@@ -28,6 +29,7 @@ static void perf_evlist__purge(struct perf_evlist *evlist)
void perf_evlist__delete(struct perf_evlist *evlist)
{
perf_evlist__purge(evlist);
+ free(evlist->pollfd);
free(evlist);
}
@@ -51,3 +53,10 @@ int perf_evlist__add_default(struct perf_evlist *evlist)
perf_evlist__add(evlist, evsel);
return 0;
}
+
+int perf_evlist__alloc_pollfd(struct perf_evlist *evlist, int ncpus, int nthreads)
+{
+ int nfds = ncpus * nthreads * evlist->nr_entries;
+ evlist->pollfd = malloc(sizeof(struct pollfd) * nfds);
+ return evlist->pollfd != NULL ? 0 : -ENOMEM;
+}
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