[tip:perf/core] perf evlist: Fix max mmap_pages

tip-bot for Adrian Hunter
2013-12-11T11:05:20Z

Commit-ID: f5ae9c424e4c80c44e9ab7e5ff4a6b79490c23be
Gitweb: http://git.kernel.org/tip/f5ae9c424e4c80c44e9ab7e5ff4a6b79490c23be
Author: Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Mon, 9 Dec 2013 15:18:38 +0200
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 9 Dec 2013 15:17:38 -0300

perf evlist: Fix max mmap_pages

'SIZE_MAX / page_size' is an upper limit for the maximum number of mmap
pages, not a lower limit. Change the condition accordingly.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1386595120-22978-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/evlist.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 4d0945c..98ec96b 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -754,7 +754,7 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
unsigned long max = UINT_MAX;
long pages;

- if (max < SIZE_MAX / page_size)
+ if (max > SIZE_MAX / page_size)
max = SIZE_MAX / page_size;

pages = parse_pages_arg(str, 1, max);