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-rw-r--r--tools/perf/Documentation/perf-record.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 5a520f825295..2937f7e14bb7 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -89,7 +89,7 @@ OPTIONS
-m::
--mmap-pages=::
- Number of mmap data pages.
+ Number of mmap data pages. Must be a power of two.
-g::
--call-graph::