diff options
| -rw-r--r-- | drivers/md/md.c | 29 | ||||
| -rw-r--r-- | drivers/md/md.h | 3 |
2 files changed, 32 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 0c4e00e8d485..0bf2f7a53ed8 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -4942,6 +4942,35 @@ static void stop_sync_thread(struct mddev *mddev, bool locked, bool check_seq) mddev_lock_nointr(mddev); } +void md_idle_sync_thread(struct mddev *mddev) +{ + lockdep_assert_held(&mddev->reconfig_mutex); + + clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + stop_sync_thread(mddev, true, true); +} +EXPORT_SYMBOL_GPL(md_idle_sync_thread); + +void md_frozen_sync_thread(struct mddev *mddev) +{ + lockdep_assert_held(&mddev->reconfig_mutex); + + set_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + stop_sync_thread(mddev, true, false); +} +EXPORT_SYMBOL_GPL(md_frozen_sync_thread); + +void md_unfrozen_sync_thread(struct mddev *mddev) +{ + lockdep_assert_held(&mddev->reconfig_mutex); + + clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery); + set_bit(MD_RECOVERY_NEEDED, &mddev->recovery); + md_wakeup_thread(mddev->thread); + sysfs_notify_dirent_safe(mddev->sysfs_action); +} +EXPORT_SYMBOL_GPL(md_unfrozen_sync_thread); + static void idle_sync_thread(struct mddev *mddev) { mutex_lock(&mddev->sync_mutex); diff --git a/drivers/md/md.h b/drivers/md/md.h index b2076a165c10..dff2e333756d 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -792,6 +792,9 @@ extern void md_rdev_clear(struct md_rdev *rdev); extern void md_handle_request(struct mddev *mddev, struct bio *bio); extern int mddev_suspend(struct mddev *mddev, bool interruptible); extern void mddev_resume(struct mddev *mddev); +extern void md_idle_sync_thread(struct mddev *mddev); +extern void md_frozen_sync_thread(struct mddev *mddev); +extern void md_unfrozen_sync_thread(struct mddev *mddev); extern void md_reload_sb(struct mddev *mddev, int raid_disk); extern void md_update_sb(struct mddev *mddev, int force); |