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-rw-r--r--Documentation/mkfs.btrfs.asciidoc2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/mkfs.btrfs.asciidoc b/Documentation/mkfs.btrfs.asciidoc
index fd20ca55..a9aa3cb4 100644
--- a/Documentation/mkfs.btrfs.asciidoc
+++ b/Documentation/mkfs.btrfs.asciidoc
@@ -112,7 +112,7 @@ Do not perform whole device TRIM operation by default.
-O|--features <feature1>[,<feature2>...]::
A list of filesystem features turned on at mkfs time. Not all features are
-supported by old kernels.
+supported by old kernels. To disable a feature, prefix it with '^'.
+
To see all features run:
+