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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-10-09 22:13:30 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-10-09 22:13:30 +0200
commit670aee3fc7ac37ae947f8b582d87b51d5fa36524 (patch)
tree9885998483d4506208e5aef9c13c8a86adea20bb /drivers/md/md.c
parentd61e87ac53292a3138b4354b687558973686b6ca (diff)
parent55582bccdc1e89ecc973c260d46e247df675d4df (diff)
Merge branches 'pm-devfreq' and 'pm-cpufreq'
* pm-devfreq: PM / devfreq: fix double kfree PM / devfreq: Fix governor_store() * pm-cpufreq: cpufreq: prevent lockup on reading scaling_available_frequencies cpufreq: acpi_cpufreq: prevent crash on reading freqdomain_cpus
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r--drivers/md/md.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4f5ecbe94ccb..c702de18207a 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5409,9 +5409,13 @@ static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
* which will now never happen */
wake_up_process(mddev->sync_thread->tsk);
+ if (mddev->external && test_bit(MD_CHANGE_PENDING, &mddev->flags))
+ return -EBUSY;
mddev_unlock(mddev);
wait_event(resync_wait, !test_bit(MD_RECOVERY_RUNNING,
&mddev->recovery));
+ wait_event(mddev->sb_wait,
+ !test_bit(MD_CHANGE_PENDING, &mddev->flags));
mddev_lock_nointr(mddev);
mutex_lock(&mddev->open_mutex);
@@ -8160,6 +8164,7 @@ void md_check_recovery(struct mddev *mddev)
md_reap_sync_thread(mddev);
clear_bit(MD_RECOVERY_RECOVER, &mddev->recovery);
clear_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
+ clear_bit(MD_CHANGE_PENDING, &mddev->flags);
goto unlock;
}