[PATCH v2 2/5] md: refactor md_wakeup_thread()

From: Yu Kuai
Date: Wed Mar 15 2023 - 02:19:24 EST

From: Yu Kuai <yukuai3@xxxxxxxxxx>

Pass a md_thread pointer and a mddev to md_wakeup_thread(), prepare to
use a disk level spinlock to protect md_thread, there are no functional
changes.

Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
drivers/md/dm-raid.c | 4 +--
drivers/md/md-bitmap.c | 6 ++--
drivers/md/md-cluster.c | 20 +++++------
drivers/md/md-multipath.c | 2 +-
drivers/md/md.c | 76 ++++++++++++++++++++-------------------
drivers/md/md.h | 4 +--
drivers/md/raid1.c | 10 +++---
drivers/md/raid10.c | 14 ++++----
drivers/md/raid5-cache.c | 12 +++----
drivers/md/raid5-ppl.c | 2 +-
drivers/md/raid5.c | 31 ++++++++--------
11 files changed, 93 insertions(+), 88 deletions(-)

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 60632b409b80..257c9c9f2b4d 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3755,11 +3755,11 @@ static int raid_message(struct dm_target *ti, unsigned int argc, char **argv,
*/
mddev->ro = 0;
if (!mddev->suspended && mddev->sync_thread)
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->sync_thread, mddev);
}
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
if (!mddev->suspended && mddev->thread)
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);

return 0;
}
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index e7cc6ba1b657..9489510405f7 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -1942,7 +1942,7 @@ int md_bitmap_load(struct mddev *mddev)
set_bit(MD_RECOVERY_NEEDED, &bitmap->mddev->recovery);

mddev->thread->timeout = mddev->bitmap_info.daemon_sleep;
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);

md_bitmap_update_sb(bitmap);

@@ -2363,7 +2363,7 @@ location_store(struct mddev *mddev, const char *buf, size_t len)
* metadata promptly.
*/
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
rv = 0;
out:
@@ -2454,7 +2454,7 @@ timeout_store(struct mddev *mddev, const char *buf, size_t len)
*/
if (mddev->thread->timeout < MAX_SCHEDULE_TIMEOUT) {
mddev->thread->timeout = timeout;
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
}
return len;
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index c19e29cb73bf..85fbcf5bae27 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -325,7 +325,7 @@ static void recover_bitmaps(struct md_thread *thread)
if (test_bit(MD_RESYNCING_REMOTE, &mddev->recovery) &&
test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
mddev->reshape_position != MaxSector)
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->sync_thread, mddev);

if (hi > 0) {
if (lo < mddev->recovery_cp)
@@ -340,7 +340,7 @@ static void recover_bitmaps(struct md_thread *thread)
clear_bit(MD_RESYNCING_REMOTE,
&mddev->recovery);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
}
clear_bit:
@@ -368,7 +368,7 @@ static void __recover_slot(struct mddev *mddev, int slot)
return;
}
}
- md_wakeup_thread(cinfo->recovery_thread);
+ md_wakeup_thread(&cinfo->recovery_thread, mddev);
}

static void recover_slot(void *arg, struct dlm_slot *slot)
@@ -422,7 +422,7 @@ static void ack_bast(void *arg, int mode)

if (mode == DLM_LOCK_EX) {
if (test_bit(MD_CLUSTER_ALREADY_IN_CLUSTER, &cinfo->state))
- md_wakeup_thread(cinfo->recv_thread);
+ md_wakeup_thread(&cinfo->recv_thread, res->mddev);
else
set_bit(MD_CLUSTER_PENDING_RECV_EVENT, &cinfo->state);
}
@@ -454,7 +454,7 @@ static void process_suspend_info(struct mddev *mddev,
clear_bit(MD_RESYNCING_REMOTE, &mddev->recovery);
remove_suspend_info(mddev, slot);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
return;
}

@@ -546,7 +546,7 @@ static void process_remove_disk(struct mddev *mddev, struct cluster_msg *msg)
if (rdev) {
set_bit(ClusterRemove, &rdev->flags);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
else
pr_warn("%s: %d Could not find disk(%d) to REMOVE\n",
@@ -696,7 +696,7 @@ static int lock_comm(struct md_cluster_info *cinfo, bool mddev_locked)
rv = test_and_set_bit_lock(MD_CLUSTER_HOLDING_MUTEX_FOR_RECVD,
&cinfo->state);
WARN_ON_ONCE(rv);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
set_bit = 1;
}

@@ -971,7 +971,7 @@ static void load_bitmaps(struct mddev *mddev, int total_slots)
set_bit(MD_CLUSTER_ALREADY_IN_CLUSTER, &cinfo->state);
/* wake up recv thread in case something need to be handled */
if (test_and_clear_bit(MD_CLUSTER_PENDING_RECV_EVENT, &cinfo->state))
- md_wakeup_thread(cinfo->recv_thread);
+ md_wakeup_thread(&cinfo->recv_thread, mddev);
}

static void resync_bitmap(struct mddev *mddev)
@@ -1052,7 +1052,7 @@ static int metadata_update_start(struct mddev *mddev)
ret = test_and_set_bit_lock(MD_CLUSTER_HOLDING_MUTEX_FOR_RECVD,
&cinfo->state);
WARN_ON_ONCE(ret);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);

wait_event(cinfo->wait,
!test_and_set_bit(MD_CLUSTER_SEND_LOCK, &cinfo->state) ||
@@ -1430,7 +1430,7 @@ static int add_new_disk(struct mddev *mddev, struct md_rdev *rdev)
/* Since MD_CHANGE_DEVS will be set in add_bound_rdev which
* will run soon after add_new_disk, the below path will be
* invoked:
- * md_wakeup_thread(mddev->thread)
+ * md_wakeup_thread(&mddev->thread)
* -> conf->thread (raid1d)
* -> md_check_recovery -> md_update_sb
* -> metadata_update_start/finish
diff --git a/drivers/md/md-multipath.c b/drivers/md/md-multipath.c
index ceec9e4b2a60..482536ec8850 100644
--- a/drivers/md/md-multipath.c
+++ b/drivers/md/md-multipath.c
@@ -57,7 +57,7 @@ static void multipath_reschedule_retry (struct multipath_bh *mp_bh)
spin_lock_irqsave(&conf->device_lock, flags);
list_add(&mp_bh->retry_list, &conf->retry_list);
spin_unlock_irqrestore(&conf->device_lock, flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}

/*
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 0bbdde29a41f..97e87df4ee43 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -487,8 +487,9 @@ void mddev_resume(struct mddev *mddev)
mddev->pers->quiesce(mddev, 0);

set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
- md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */
+ md_wakeup_thread(&mddev->thread, mddev);
+ /* possibly kick off a reshape */
+ md_wakeup_thread(&mddev->sync_thread, mddev);
}
EXPORT_SYMBOL_GPL(mddev_resume);

@@ -804,7 +805,7 @@ void mddev_unlock(struct mddev *mddev)
* make sure the thread doesn't disappear
*/
spin_lock(&pers_lock);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
wake_up(&mddev->sb_wait);
spin_unlock(&pers_lock);
}
@@ -2814,7 +2815,7 @@ static int add_bound_rdev(struct md_rdev *rdev)
set_bit(MD_RECOVERY_RECOVER, &mddev->recovery);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
md_new_event();
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
return 0;
}

@@ -2931,7 +2932,7 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
md_kick_rdev_from_array(rdev);
if (mddev->pers) {
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
md_new_event();
}
@@ -2962,7 +2963,7 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
clear_bit(BlockedBadBlocks, &rdev->flags);
wake_up(&rdev->blocked_wait);
set_bit(MD_RECOVERY_NEEDED, &rdev->mddev->recovery);
- md_wakeup_thread(rdev->mddev->thread);
+ md_wakeup_thread(&rdev->mddev->thread, rdev->mddev);

err = 0;
} else if (cmd_match(buf, "insync") && rdev->raid_disk == -1) {
@@ -3000,7 +3001,7 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len)
!test_bit(Replacement, &rdev->flags))
set_bit(WantReplacement, &rdev->flags);
set_bit(MD_RECOVERY_NEEDED, &rdev->mddev->recovery);
- md_wakeup_thread(rdev->mddev->thread);
+ md_wakeup_thread(&rdev->mddev->thread, rdev->mddev);
err = 0;
} else if (cmd_match(buf, "-want_replacement")) {
/* Clearing 'want_replacement' is always allowed.
@@ -3127,7 +3128,7 @@ slot_store(struct md_rdev *rdev, const char *buf, size_t len)
if (rdev->raid_disk >= 0)
return -EBUSY;
set_bit(MD_RECOVERY_NEEDED, &rdev->mddev->recovery);
- md_wakeup_thread(rdev->mddev->thread);
+ md_wakeup_thread(&rdev->mddev->thread, rdev->mddev);
} else if (rdev->mddev->pers) {
/* Activating a spare .. or possibly reactivating
* if we ever get bitmaps working here.
@@ -4359,7 +4360,7 @@ array_state_store(struct mddev *mddev, const char *buf, size_t len)
if (st == active) {
restart_array(mddev);
clear_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
wake_up(&mddev->sb_wait);
} else /* st == clean */ {
restart_array(mddev);
@@ -4826,10 +4827,10 @@ action_store(struct mddev *mddev, const char *page, size_t len)
* canceling read-auto mode
*/
mddev->ro = MD_RDWR;
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->sync_thread, mddev);
}
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
sysfs_notify_dirent_safe(mddev->sysfs_action);
return len;
}
@@ -5733,7 +5734,7 @@ static void md_safemode_timeout(struct timer_list *t)
if (mddev->external)
sysfs_notify_dirent_safe(mddev->sysfs_state);

- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}

static int start_dirty_degraded;
@@ -6045,8 +6046,9 @@ int do_md_run(struct mddev *mddev)
/* run start up tasks that require md_thread */
md_start(mddev);

- md_wakeup_thread(mddev->thread);
- md_wakeup_thread(mddev->sync_thread); /* possibly kick off a reshape */
+ md_wakeup_thread(&mddev->thread, mddev);
+ /* possibly kick off a reshape */
+ md_wakeup_thread(&mddev->sync_thread, mddev);

set_capacity_and_notify(mddev->gendisk, mddev->array_sectors);
clear_bit(MD_NOT_READY, &mddev->flags);
@@ -6066,10 +6068,10 @@ int md_start(struct mddev *mddev)

if (mddev->pers->start) {
set_bit(MD_RECOVERY_WAIT, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
ret = mddev->pers->start(mddev);
clear_bit(MD_RECOVERY_WAIT, &mddev->recovery);
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->sync_thread, mddev);
}
return ret;
}
@@ -6111,8 +6113,8 @@ static int restart_array(struct mddev *mddev)
pr_debug("md: %s switched to read-write mode.\n", mdname(mddev));
/* Kick recovery or resync if necessary */
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->thread, mddev);
+ md_wakeup_thread(&mddev->sync_thread, mddev);
sysfs_notify_dirent_safe(mddev->sysfs_state);
return 0;
}
@@ -6261,7 +6263,7 @@ static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
if (!test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) {
did_freeze = 1;
set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
@@ -6287,7 +6289,7 @@ static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
if (did_freeze) {
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
err = -EBUSY;
goto out;
@@ -6302,7 +6304,7 @@ static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
set_disk_ro(mddev->gendisk, 1);
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
sysfs_notify_dirent_safe(mddev->sysfs_state);
err = 0;
}
@@ -6325,7 +6327,7 @@ static int do_md_stop(struct mddev *mddev, int mode,
if (!test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) {
did_freeze = 1;
set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
@@ -6350,7 +6352,7 @@ static int do_md_stop(struct mddev *mddev, int mode,
if (did_freeze) {
clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
return -EBUSY;
}
@@ -6893,7 +6895,7 @@ static int hot_remove_disk(struct mddev *mddev, dev_t dev)
md_kick_rdev_from_array(rdev);
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
if (mddev->thread)
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
else
md_update_sb(mddev, 1);
md_new_event();
@@ -6976,7 +6978,7 @@ static int hot_add_disk(struct mddev *mddev, dev_t dev)
* array immediately.
*/
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
md_new_event();
return 0;

@@ -7886,8 +7888,10 @@ static int md_thread(void *arg)
return 0;
}

-void md_wakeup_thread(struct md_thread *thread)
+void md_wakeup_thread(struct md_thread **threadp, struct mddev *mddev)
{
+ struct md_thread *thread = *threadp;
+
if (thread) {
pr_debug("md: waking up MD thread %s.\n", thread->tsk->comm);
set_bit(THREAD_WAKEUP, &thread->flags);
@@ -7963,7 +7967,7 @@ void md_error(struct mddev *mddev, struct md_rdev *rdev)
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
if (!test_bit(MD_BROKEN, &mddev->flags)) {
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
if (mddev->event_work.func)
queue_work(md_misc_wq, &mddev->event_work);
@@ -8474,7 +8478,7 @@ void md_done_sync(struct mddev *mddev, int blocks, int ok)
if (!ok) {
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
set_bit(MD_RECOVERY_ERROR, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
// stop recovery, signal do_sync ....
}
}
@@ -8499,8 +8503,8 @@ bool md_write_start(struct mddev *mddev, struct bio *bi)
/* need to switch to read/write */
mddev->ro = MD_RDWR;
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->thread, mddev);
+ md_wakeup_thread(&mddev->sync_thread, mddev);
did_change = 1;
}
rcu_read_lock();
@@ -8515,7 +8519,7 @@ bool md_write_start(struct mddev *mddev, struct bio *bi)
mddev->in_sync = 0;
set_bit(MD_SB_CHANGE_CLEAN, &mddev->sb_flags);
set_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
did_change = 1;
}
spin_unlock(&mddev->lock);
@@ -8558,7 +8562,7 @@ void md_write_end(struct mddev *mddev)
percpu_ref_put(&mddev->writes_pending);

if (mddev->safemode == 2)
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
else if (mddev->safemode_delay)
/* The roundup() ensures this only performs locking once
* every ->safemode_delay jiffies
@@ -9100,7 +9104,7 @@ void md_do_sync(struct md_thread *thread)
spin_unlock(&mddev->lock);

wake_up(&resync_wait);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
return;
}
EXPORT_SYMBOL_GPL(md_do_sync);
@@ -9218,7 +9222,7 @@ static void md_start_sync(struct work_struct *ws)
if (mddev->sysfs_action)
sysfs_notify_dirent_safe(mddev->sysfs_action);
} else
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->sync_thread, mddev);
sysfs_notify_dirent_safe(mddev->sysfs_action);
md_new_event();
}
@@ -9534,7 +9538,7 @@ int rdev_set_badblocks(struct md_rdev *rdev, sector_t s, int sectors,
sysfs_notify_dirent_safe(rdev->sysfs_state);
set_mask_bits(&mddev->sb_flags, 0,
BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
- md_wakeup_thread(rdev->mddev->thread);
+ md_wakeup_thread(&rdev->mddev->thread, mddev);
return 1;
} else
return 0;
@@ -9699,7 +9703,7 @@ static void check_sb_changes(struct mddev *mddev, struct md_rdev *rdev)
/* wakeup mddev->thread here, so array could
* perform resync with the new activated disk */
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
/* device faulty
* We just want to do the minimum to mark the disk
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 344e055e4d0f..aeb2fc6b65c7 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -734,7 +734,7 @@ int md_register_thread(struct md_thread **threadp,
void (*run)(struct md_thread *thread),
struct mddev *mddev, const char *name);
extern void md_unregister_thread(struct md_thread **threadp);
-extern void md_wakeup_thread(struct md_thread *thread);
+extern void md_wakeup_thread(struct md_thread **threadp, struct mddev *mddev);
extern void md_check_recovery(struct mddev *mddev);
extern void md_reap_sync_thread(struct mddev *mddev);
extern int mddev_init_writes_pending(struct mddev *mddev);
@@ -805,7 +805,7 @@ static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
int faulty = test_bit(Faulty, &rdev->flags);
if (atomic_dec_and_test(&rdev->nr_pending) && faulty) {
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
}

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 1217c1db0a40..391ff239c711 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -289,7 +289,7 @@ static void reschedule_retry(struct r1bio *r1_bio)
spin_unlock_irqrestore(&conf->device_lock, flags);

wake_up(&conf->wait_barrier);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}

/*
@@ -1180,7 +1180,7 @@ static void raid1_unplug(struct blk_plug_cb *cb, bool from_schedule)
bio_list_merge(&conf->pending_bio_list, &plug->pending);
spin_unlock_irq(&conf->device_lock);
wake_up(&conf->wait_barrier);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
kfree(plug);
return;
}
@@ -1585,7 +1585,7 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
spin_lock_irqsave(&conf->device_lock, flags);
bio_list_add(&conf->pending_bio_list, mbio);
spin_unlock_irqrestore(&conf->device_lock, flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
}

@@ -2501,7 +2501,7 @@ static void handle_write_finished(struct r1conf *conf, struct r1bio *r1_bio)
* get_unqueued_pending() == extra to be true.
*/
wake_up(&conf->wait_barrier);
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
} else {
if (test_bit(R1BIO_WriteError, &r1_bio->state))
close_write(r1_bio);
@@ -3344,7 +3344,7 @@ static int raid1_reshape(struct mddev *mddev)

set_bit(MD_RECOVERY_RECOVER, &mddev->recovery);
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);

mempool_exit(&oldpool);
return 0;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index f1e54c62f930..920e5722040f 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -309,7 +309,7 @@ static void reschedule_retry(struct r10bio *r10_bio)
/* wake up frozen array... */
wake_up(&conf->wait_barrier);

- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}

/*
@@ -1114,7 +1114,7 @@ static void raid10_unplug(struct blk_plug_cb *cb, bool from_schedule)
bio_list_merge(&conf->pending_bio_list, &plug->pending);
spin_unlock_irq(&conf->device_lock);
wake_up(&conf->wait_barrier);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
kfree(plug);
return;
}
@@ -1329,7 +1329,7 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio,
spin_lock_irqsave(&conf->device_lock, flags);
bio_list_add(&conf->pending_bio_list, mbio);
spin_unlock_irqrestore(&conf->device_lock, flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
}

@@ -1441,7 +1441,7 @@ static void raid10_write_request(struct mddev *mddev, struct bio *bio,
mddev->reshape_position = conf->reshape_progress;
set_mask_bits(&mddev->sb_flags, 0,
BIT(MD_SB_CHANGE_DEVS) | BIT(MD_SB_CHANGE_PENDING));
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
if (bio->bi_opf & REQ_NOWAIT) {
allow_barrier(conf);
bio_wouldblock_error(bio);
@@ -3079,7 +3079,7 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio)
* nr_pending == nr_queued + extra to be true.
*/
wake_up(&conf->wait_barrier);
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
} else {
if (test_bit(R10BIO_WriteError,
&r10_bio->state))
@@ -4692,7 +4692,7 @@ static int raid10_start_reshape(struct mddev *mddev)
goto abort;
}
conf->reshape_checkpoint = jiffies;
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->sync_thread, mddev);
md_new_event();
return 0;

@@ -4874,7 +4874,7 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr,
mddev->curr_resync_completed = conf->reshape_progress;
conf->reshape_checkpoint = jiffies;
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
wait_event(mddev->sb_wait, mddev->sb_flags == 0 ||
test_bit(MD_RECOVERY_INTR, &mddev->recovery));
if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 0464d4d551fc..d6ee6a7a83b7 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -600,7 +600,7 @@ static void r5l_log_endio(struct bio *bio)
spin_unlock_irqrestore(&log->io_list_lock, flags);

if (log->need_cache_flush)
- md_wakeup_thread(log->rdev->mddev->thread);
+ md_wakeup_thread(&log->rdev->mddev->thread, log->rdev->mddev);

/* finish flush only io_unit and PAYLOAD_FLUSH only io_unit */
if (has_null_flush) {
@@ -1491,7 +1491,7 @@ static void r5c_do_reclaim(struct r5conf *conf)
if (!test_bit(R5C_LOG_CRITICAL, &conf->cache_state))
r5l_run_no_space_stripes(log);

- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
}

static void r5l_do_reclaim(struct r5l_log *log)
@@ -1519,7 +1519,7 @@ static void r5l_do_reclaim(struct r5l_log *log)
list_empty(&log->finished_ios)))
break;

- md_wakeup_thread(log->rdev->mddev->thread);
+ md_wakeup_thread(&log->rdev->mddev->thread, log->rdev->mddev);
wait_event_lock_irq(log->iounit_wait,
r5l_reclaimable_space(log) > reclaimable,
log->io_list_lock);
@@ -1571,7 +1571,7 @@ void r5l_wake_reclaim(struct r5l_log *log, sector_t space)
if (new < target)
return;
} while (!try_cmpxchg(&log->reclaim_target, &target, new));
- md_wakeup_thread(log->reclaim_thread);
+ md_wakeup_thread(&log->reclaim_thread, log->rdev->mddev);
}

void r5l_quiesce(struct r5l_log *log, int quiesce)
@@ -2776,7 +2776,7 @@ void r5c_release_extra_page(struct stripe_head *sh)

if (using_disk_info_extra_page) {
clear_bit(R5C_EXTRA_PAGE_IN_USE, &conf->cache_state);
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
}
}

@@ -2832,7 +2832,7 @@ void r5c_finish_stripe_write_out(struct r5conf *conf,

if (test_and_clear_bit(STRIPE_FULL_WRITE, &sh->state))
if (atomic_dec_and_test(&conf->pending_full_writes))
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);

if (do_wakeup)
wake_up(&conf->wait_for_overlap);
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index e495939bb3e0..47cf1e85c48d 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -601,7 +601,7 @@ static void ppl_flush_endio(struct bio *bio)

if (atomic_dec_and_test(&io->pending_flushes)) {
ppl_io_unit_finished(io);
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
}
}

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 04b1093195d0..2c0695d41436 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -195,7 +195,7 @@ static void raid5_wakeup_stripe_thread(struct stripe_head *sh)
}

if (conf->worker_cnt_per_group == 0) {
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
return;
}

@@ -268,13 +268,14 @@ static void do_release_stripe(struct r5conf *conf, struct stripe_head *sh,
return;
}
}
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
} else {
BUG_ON(stripe_operations_active(sh));
if (test_and_clear_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
if (atomic_dec_return(&conf->preread_active_stripes)
< IO_THRESHOLD)
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread,
+ conf->mddev);
atomic_dec(&conf->active_stripes);
if (!test_bit(STRIPE_EXPANDING, &sh->state)) {
if (!r5c_is_writeback(conf->log))
@@ -356,7 +357,7 @@ static void release_inactive_stripe_list(struct r5conf *conf,
if (atomic_read(&conf->active_stripes) == 0)
wake_up(&conf->wait_for_quiescent);
if (conf->retry_read_aligned)
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
}
}

@@ -407,7 +408,7 @@ void raid5_release_stripe(struct stripe_head *sh)
goto slow_path;
wakeup = llist_add(&sh->release_list, &conf->released_stripes);
if (wakeup)
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
return;
slow_path:
/* we are ok here if STRIPE_ON_RELEASE_LIST is set or not */
@@ -981,7 +982,7 @@ static void stripe_add_to_batch_list(struct r5conf *conf,
if (test_and_clear_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
if (atomic_dec_return(&conf->preread_active_stripes)
< IO_THRESHOLD)
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);

if (test_and_clear_bit(STRIPE_BIT_DELAY, &sh->state)) {
int seq = sh->bm_seq;
@@ -3759,7 +3760,7 @@ handle_failed_stripe(struct r5conf *conf, struct stripe_head *sh,

if (test_and_clear_bit(STRIPE_FULL_WRITE, &sh->state))
if (atomic_dec_and_test(&conf->pending_full_writes))
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
}

static void
@@ -4156,7 +4157,7 @@ static void handle_stripe_clean_event(struct r5conf *conf,

if (test_and_clear_bit(STRIPE_FULL_WRITE, &sh->state))
if (atomic_dec_and_test(&conf->pending_full_writes))
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);

if (head_sh->batch_head && do_endio)
break_stripe_batch_list(head_sh, STRIPE_EXPAND_SYNC_FLAGS);
@@ -5369,7 +5370,7 @@ static void handle_stripe(struct stripe_head *sh)
atomic_dec(&conf->preread_active_stripes);
if (atomic_read(&conf->preread_active_stripes) <
IO_THRESHOLD)
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
}

clear_bit_unlock(STRIPE_ACTIVE, &sh->state);
@@ -5436,7 +5437,7 @@ static void add_bio_to_retry(struct bio *bi,struct r5conf *conf)
conf->retry_read_aligned_list = bi;

spin_unlock_irqrestore(&conf->device_lock, flags);
- md_wakeup_thread(conf->mddev->thread);
+ md_wakeup_thread(&conf->mddev->thread, conf->mddev);
}

static struct bio *remove_bio_from_retry(struct r5conf *conf,
@@ -6045,7 +6046,7 @@ static enum stripe_result make_stripe_request(struct mddev *mddev,
* Stripe is busy expanding or add failed due to
* overlap. Flush everything and wait a while.
*/
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
ret = STRIPE_SCHEDULE_AND_RETRY;
goto out_release;
}
@@ -6345,7 +6346,7 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk

conf->reshape_checkpoint = jiffies;
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
wait_event(mddev->sb_wait, mddev->sb_flags == 0 ||
test_bit(MD_RECOVERY_INTR, &mddev->recovery));
if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))
@@ -6453,7 +6454,7 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk
rdev->recovery_offset = sector_nr;
conf->reshape_checkpoint = jiffies;
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
wait_event(mddev->sb_wait,
!test_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags)
|| test_bit(MD_RECOVERY_INTR, &mddev->recovery));
@@ -8585,7 +8586,7 @@ static int raid5_start_reshape(struct mddev *mddev)
return -EAGAIN;
}
conf->reshape_checkpoint = jiffies;
- md_wakeup_thread(mddev->sync_thread);
+ md_wakeup_thread(&mddev->sync_thread, mddev);
md_new_event();
return 0;
}
@@ -8815,7 +8816,7 @@ static int raid5_check_reshape(struct mddev *mddev)
mddev->chunk_sectors = new_chunk;
}
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
- md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(&mddev->thread, mddev);
}
return check_reshape(mddev);
}
--
2.31.1