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md: notify about new spare disk in the container

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In case of external metadata arrays spare disks are added to containers
first. mdadm keeps monitoring /proc/mdstat output and when spare disk is
available, it moves it from the container to the array. The problem is
there is no notification of new spare disk in the container and mdadm
waits a long time (until timeout) before it takes the action.

Signed-off-by: Alexey Obitotskiy <aleksey.obitotskiy@intel.com>
Signed-off-by: Shaohua Li <shli@fb.com>
This commit is contained in:
Alexey Obitotskiy 2017-07-28 15:49:25 +02:00 committed by Shaohua Li
parent 208410b546
commit 5492c46e94
1 changed files with 2 additions and 0 deletions
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drivers/md/md.c
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@ -4283,6 +4283,8 @@ new_dev_store(struct mddev *mddev, const char *buf, size_t len)
if (err)
export_rdev(rdev);
mddev_unlock(mddev);
if (!err)
md_new_event(mddev);
return err ? err : len;
}