From 0fd62b861eac7d2dea9b7e939953b20f37186ea1 Mon Sep 17 00:00:00 2001 From: Neil Brown Date: Sat, 28 Jun 2008 08:31:36 +1000 Subject: Make sure all changes to md/array_state are notified. Changes in md/array_state could be of interest to a monitoring program. So make sure all changes trigger a notification. Exceptions: changing active_idle to active is not reported because it is frequent and not interesting. changing active to active_idle is only reported on arrays with externally managed metadata, as it is not interesting otherwise. Signed-off-by: Neil Brown --- Documentation/md.txt | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation/md.txt') diff --git a/Documentation/md.txt b/Documentation/md.txt index a8b430627473..dca97ba4944a 100644 --- a/Documentation/md.txt +++ b/Documentation/md.txt @@ -236,6 +236,11 @@ All md devices contain: writing the word for the desired state, however some states cannot be explicitly set, and some transitions are not allowed. + Select/poll works on this file. All changes except between + active_idle and active (which can be frequent and are not + very interesting) are notified. active->active_idle is + reported if the metadata is externally managed. + clear No devices, no size, no level Writing is equivalent to STOP_ARRAY ioctl -- cgit v1.2.3