Commit-ID: c80c3c269011c67b8dabef5238af44a6d94e4d0e
Gitweb: http://git.kernel.org/tip/c80c3c269011c67b8dabef5238af44a6d94e4d0e
Author: David Ahern <dsahern@xxxxxxxxx>
AuthorDate: Fri, 20 Jul 2012 17:25:51 -0600
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 25 Jul 2012 11:31:03 -0300
perf kvm: Limit repetitive guestmount message to once per directory
After 7ed97ad use of the guestmount option without a subdir for *each*
VM generates an error message for each sample related to that VM. Once
per VM is enough.
Signed-off-by: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1342826756-64663-7-git-send-email-dsahern@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/map.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 16d783d..cc33486 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -8,6 +8,7 @@
#include <unistd.h>
#include "map.h"
#include "thread.h"
+#include "strlist.h"
const char *map_type__name[MAP__NR_TYPES] = {
[MAP__FUNCTION] = "Functions",
@@ -695,7 +696,15 @@ struct machine *machines__findnew(struct rb_root *self, pid_t pid)
(symbol_conf.guestmount)) {
sprintf(path, "%s/%d", symbol_conf.guestmount, pid);
if (access(path, R_OK)) {
- pr_err("Can't access file %s\n", path);
+ static struct strlist *seen;
+
+ if (!seen)
+ seen = strlist__new(true, NULL);
+
+ if (!strlist__has_entry(seen, path)) {
+ pr_err("Can't access file %s\n", path);
+ strlist__add(seen, path);
+ }
machine = NULL;
goto out;
}
--
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