From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Add documentation of the binderfs 'stats' mount option.
Description taken from the commit message.
Fixes: f00834518ed3 ("binder: add a mount option to show global stats")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Cc: Hridya Valsaraju <hridya@xxxxxxxxxx>
Cc: Christian Brauner <christian.brauner@xxxxxxxxxx>
Cc: Christian Brauner <christian@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: devel@xxxxxxxxxxxxxxxxxxxx
---
Documentation/admin-guide/binderfs.rst | 6 ++++++
1 file changed, 6 insertions(+)
--- linux-next-20200408.orig/Documentation/admin-guide/binderfs.rst
+++ linux-next-20200408/Documentation/admin-guide/binderfs.rst
@@ -33,6 +33,12 @@ max
a per-instance limit. If ``max=<count>`` is set then only ``<count>`` number
of binder devices can be allocated in this binderfs instance.
+stats
+ Using ``stats=global`` enables global binder statistics.
+ ``stats=global`` is only available for a binderfs instance mounted in the
+ initial user namespace. An attempt to use the option to mount a binderfs
+ instance in another user namespace will return a permission error.
+
Allocating binder Devices
-------------------------
