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| author | Neil Brown <neilb@notabene.brown> | 2008-06-28 08:31:44 +1000 |
|---|---|---|
| committer | Neil Brown <neilb@notabene.brown> | 2008-06-28 08:31:44 +1000 |
| commit | 526647320e696f434647f38421a6ecf65b859c43 (patch) | |
| tree | aa6bf13e6aa766051ba32a8b64157f4adf9fcd3e /Documentation | |
| parent | a99ac97113d5bc25ddc4d17f404c2024ac6c57f9 (diff) | |
| download | linux-526647320e696f434647f38421a6ecf65b859c43.tar.gz linux-526647320e696f434647f38421a6ecf65b859c43.tar.bz2 linux-526647320e696f434647f38421a6ecf65b859c43.zip | |
Make sure all changes to md/dev-XX/state are notified
The important state change happens during an interrupt
in md_error. So just set a flag there and call sysfs_notify
later in process context.
Signed-off-by: Neil Brown <neilb@suse.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/md.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/md.txt b/Documentation/md.txt index eb6e69e3732e..e06cc59437e4 100644 --- a/Documentation/md.txt +++ b/Documentation/md.txt @@ -297,6 +297,10 @@ Each directory contains: writemostly - device will only be subject to read requests if there are no other options. This applies only to raid1 arrays. + blocked - device has failed, metadata is "external", + and the failure hasn't been acknowledged yet. + Writes that would write to this device if + it were not faulty are blocked. spare - device is working, but not a full member. This includes spares that are in the process of being recovered to @@ -306,6 +310,12 @@ Each directory contains: Writing "remove" removes the device from the array. Writing "writemostly" sets the writemostly flag. Writing "-writemostly" clears the writemostly flag. + Writing "blocked" sets the "blocked" flag. + Writing "-blocked" clear the "blocked" flag and allows writes + to complete. + + This file responds to select/poll. Any change to 'faulty' + or 'blocked' causes an event. errors An approximate count of read errors that have been detected on |