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workqueue: deprecate system_nrt[_freezable]_wq

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system_nrt[_freezable]_wq are now spurious.  Mark them deprecated and
convert all users to system[_freezable]_wq.

If you're cc'd and wondering what's going on: Now all workqueues are
non-reentrant, so there's no reason to use system_nrt[_freezable]_wq.
Please use system[_freezable]_wq instead.

This patch doesn't make any functional difference.

Signed-off-by: Tejun Heo <[email protected]>
Acked-By: Lai Jiangshan <[email protected]>

Cc: Jens Axboe <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Jiri Kosina <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Rusty Russell <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Cc: David Howells <[email protected]>
This commit is contained in:
Tejun Heo 2012-08-20 14:51:24 -07:00
commit 3b07e9ca26
10 changed files with 29 additions and 30 deletions
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7
block/blk-throttle.c
View file

@ -180,7 +180,7 @@ static inline unsigned int total_nr_queued(struct throtl_data *td)
/*
* Worker for allocating per cpu stat for tgs. This is scheduled on the
* system_nrt_wq once there are some groups on the alloc_list waiting for
* system_wq once there are some groups on the alloc_list waiting for
* allocation.
*/
static void tg_stats_alloc_fn(struct work_struct *work)
@ -194,8 +194,7 @@ alloc_stats:
stats_cpu = alloc_percpu(struct tg_stats_cpu);
if (!stats_cpu) {
/* allocation failed, try again after some time */
queue_delayed_work(system_nrt_wq, dwork,
msecs_to_jiffies(10));
schedule_delayed_work(dwork, msecs_to_jiffies(10));
return;
}
}
@ -238,7 +237,7 @@ static void throtl_pd_init(struct blkcg_gq *blkg)
*/
spin_lock_irqsave(&tg_stats_alloc_lock, flags);
list_add(&tg->stats_alloc_node, &tg_stats_alloc_list);
queue_delayed_work(system_nrt_wq, &tg_stats_alloc_work, 0);
schedule_delayed_work(&tg_stats_alloc_work, 0);
spin_unlock_irqrestore(&tg_stats_alloc_lock, flags);
}

10
block/genhd.c
View file

@ -1490,9 +1490,9 @@ static void __disk_unblock_events(struct gendisk *disk, bool check_now)
intv = disk_events_poll_jiffies(disk);
set_timer_slack(&ev->dwork.timer, intv / 4);
if (check_now)
queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, 0);
queue_delayed_work(system_freezable_wq, &ev->dwork, 0);
else if (intv)
queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, intv);
queue_delayed_work(system_freezable_wq, &ev->dwork, intv);
out_unlock:
spin_unlock_irqrestore(&ev->lock, flags);
}
@ -1535,7 +1535,7 @@ void disk_flush_events(struct gendisk *disk, unsigned int mask)
spin_lock_irq(&ev->lock);
ev->clearing |= mask;
if (!ev->block)
mod_delayed_work(system_nrt_freezable_wq, &ev->dwork, 0);
mod_delayed_work(system_freezable_wq, &ev->dwork, 0);
spin_unlock_irq(&ev->lock);
}
@ -1571,7 +1571,7 @@ unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask)
/* uncondtionally schedule event check and wait for it to finish */
disk_block_events(disk);
queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, 0);
queue_delayed_work(system_freezable_wq, &ev->dwork, 0);
flush_delayed_work(&ev->dwork);
__disk_unblock_events(disk, false);
@ -1608,7 +1608,7 @@ static void disk_events_workfn(struct work_struct *work)
intv = disk_events_poll_jiffies(disk);
if (!ev->block && intv)
queue_delayed_work(system_nrt_freezable_wq, &ev->dwork, intv);
queue_delayed_work(system_freezable_wq, &ev->dwork, intv);
spin_unlock_irq(&ev->lock);