Please ignore this patch with missing IRP, will re-post to the intro mail.
Am Mi., 27. Jan. 2021 um 14:24 Uhr schrieb Kai Krakow <kai@xxxxxxxxxxx>:
>
> This is potentially long running and not latency sensitive, let's get
> it out of the way of other latency sensitive events.
> ---
> drivers/md/bcache/bcache.h | 1 +
> drivers/md/bcache/journal.c | 4 ++--
> drivers/md/bcache/super.c | 7 +++++++
> 3 files changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
> index b1ed16c7a534..70565ed5732d 100644
> --- a/drivers/md/bcache/bcache.h
> +++ b/drivers/md/bcache/bcache.h
> @@ -1001,6 +1001,7 @@ void bch_write_bdev_super(struct cached_dev *dc, struct closure *parent);
>
> extern struct workqueue_struct *bcache_wq;
> extern struct workqueue_struct *bch_journal_wq;
> +extern struct workqueue_struct *bch_background_wq;
> extern struct mutex bch_register_lock;
> extern struct list_head bch_cache_sets;
>
> diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
> index aefbdb7e003b..942e97dd1755 100644
> --- a/drivers/md/bcache/journal.c
> +++ b/drivers/md/bcache/journal.c
> @@ -932,8 +932,8 @@ atomic_t *bch_journal(struct cache_set *c,
> journal_try_write(c);
> } else if (!w->dirty) {
> w->dirty = true;
> - schedule_delayed_work(&c->journal.work,
> - msecs_to_jiffies(c->journal_delay_ms));
> + queue_delayed_work(bch_background_wq, &c->journal.work,
> + msecs_to_jiffies(c->journal_delay_ms));
> spin_unlock(&c->journal.lock);
> } else {
> spin_unlock(&c->journal.lock);
> diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
> index dc4fe7eeda81..9e1481917ce6 100644
> --- a/drivers/md/bcache/super.c
> +++ b/drivers/md/bcache/super.c
> @@ -49,6 +49,7 @@ static int bcache_major;
> static DEFINE_IDA(bcache_device_idx);
> static wait_queue_head_t unregister_wait;
> struct workqueue_struct *bcache_wq;
> +struct workqueue_struct *bch_background_wq;
> struct workqueue_struct *bch_journal_wq;
>
>
> @@ -2822,6 +2823,8 @@ static void bcache_exit(void)
> destroy_workqueue(bcache_wq);
> if (bch_journal_wq)
> destroy_workqueue(bch_journal_wq);
> + if (bch_background_wq)
> + destroy_workqueue(bch_background_wq);
>
> if (bcache_major)
> unregister_blkdev(bcache_major, "bcache");
> @@ -2884,6 +2887,10 @@ static int __init bcache_init(void)
> if (bch_btree_init())
> goto err;
>
> + bch_background_wq = alloc_workqueue("bch_background", 0, 0);
> + if (!bch_background_wq)
> + goto err;
> +
> bch_journal_wq = alloc_workqueue("bch_journal", WQ_MEM_RECLAIM, 0);
> if (!bch_journal_wq)
> goto err;
> --
> 2.26.2
>
