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authorNeilBrown <neilb@suse.de>2012-01-09 00:46:41 +1100
committerNeilBrown <neilb@suse.de>2012-01-11 08:35:14 +1100
commitf2a371c5e74dd5685ab47effa4ac7b23b1fdaae5 (patch)
treee1960be50588ef0a4461fa54609df7ebea95eac5 /drivers/md
parent19d671695e1931ebfd75b2b888778201aefe35ca (diff)
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md: notify the 'degraded' sysfs attribute on failure.
We currently only 'notify' changes to the 'degraded' attribute when it decreases, not when it increases. Notifying on failure is a little awkward as it happen in interrupt context. So instead, notify when we remove the failed device from the array, which is very soon afterwards. Reported-and-tested-by: Mikhail Balabin <mbalabin@gmail.com> Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md')
-rw-r--r--drivers/md/md.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1c1c562f63d..33aa06f12b8 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7383,6 +7383,7 @@ static int remove_and_add_spares(struct mddev *mddev)
{
struct md_rdev *rdev;
int spares = 0;
+ int removed = 0;
mddev->curr_resync_completed = 0;
@@ -7396,8 +7397,13 @@ static int remove_and_add_spares(struct mddev *mddev)
mddev, rdev) == 0) {
sysfs_unlink_rdev(mddev, rdev);
rdev->raid_disk = -1;
+ removed++;
}
}
+ if (removed)
+ sysfs_notify(&mddev->kobj, NULL,
+ "degraded");
+
list_for_each_entry(rdev, &mddev->disks, same_set) {
if (rdev->raid_disk >= 0 &&