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-rw-r--r--lib/libc/sys/msync.21
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/libc/sys/msync.2 b/lib/libc/sys/msync.2
index 425a507..dcb4f70 100644
--- a/lib/libc/sys/msync.2
+++ b/lib/libc/sys/msync.2
@@ -65,6 +65,7 @@ The
argument may be specified as follows:
.Bd -literal
MS_ASYNC Return immediately (not currently implemented)
+MS_SYNC Perform synchronous writes
MS_INVALIDATE Invalidate all cached data
.Ed
.Sh RETURN VALUES
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