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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-14 15:10:21 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-14 15:10:21 (GMT) |
commit | d429a3639ca967ce2f35e3e8d4e70caec7149ded (patch) | |
tree | cad1e5602551b6a744f63ef062de2c2e21cfe39a /drivers/md/bcache/writeback.c | |
parent | 4a319a490ca59a746b3d36768c0e29ee19832366 (diff) | |
parent | 99d540018caa920b7a54e2d3048f1dff530b294b (diff) | |
download | linux-d429a3639ca967ce2f35e3e8d4e70caec7149ded.tar.xz |
Merge branch 'for-3.17/drivers' of git://git.kernel.dk/linux-block
Pull block driver changes from Jens Axboe:
"Nothing out of the ordinary here, this pull request contains:
- A big round of fixes for bcache from Kent Overstreet, Slava Pestov,
and Surbhi Palande. No new features, just a lot of fixes.
- The usual round of drbd updates from Andreas Gruenbacher, Lars
Ellenberg, and Philipp Reisner.
- virtio_blk was converted to blk-mq back in 3.13, but now Ming Lei
has taken it one step further and added support for actually using
more than one queue.
- Addition of an explicit SG_FLAG_Q_AT_HEAD for block/bsg, to
compliment the the default behavior of adding to the tail of the
queue. From Douglas Gilbert"
* 'for-3.17/drivers' of git://git.kernel.dk/linux-block: (86 commits)
bcache: Drop unneeded blk_sync_queue() calls
bcache: add mutex lock for bch_is_open
bcache: Correct printing of btree_gc_max_duration_ms
bcache: try to set b->parent properly
bcache: fix memory corruption in init error path
bcache: fix crash with incomplete cache set
bcache: Fix more early shutdown bugs
bcache: fix use-after-free in btree_gc_coalesce()
bcache: Fix an infinite loop in journal replay
bcache: fix crash in bcache_btree_node_alloc_fail tracepoint
bcache: bcache_write tracepoint was crashing
bcache: fix typo in bch_bkey_equal_header
bcache: Allocate bounce buffers with GFP_NOWAIT
bcache: Make sure to pass GFP_WAIT to mempool_alloc()
bcache: fix uninterruptible sleep in writeback thread
bcache: wait for buckets when allocating new btree root
bcache: fix crash on shutdown in passthrough mode
bcache: fix lockdep warnings on shutdown
bcache allocator: send discards with correct size
bcache: Fix to remove the rcu_sched stalls.
...
Diffstat (limited to 'drivers/md/bcache/writeback.c')
-rw-r--r-- | drivers/md/bcache/writeback.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c index f4300e4..f1986bc 100644 --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -239,7 +239,7 @@ static void read_dirty(struct cached_dev *dc) if (KEY_START(&w->key) != dc->last_read || jiffies_to_msecs(delay) > 50) while (!kthread_should_stop() && delay) - delay = schedule_timeout_uninterruptible(delay); + delay = schedule_timeout_interruptible(delay); dc->last_read = KEY_OFFSET(&w->key); @@ -436,7 +436,7 @@ static int bch_writeback_thread(void *arg) while (delay && !kthread_should_stop() && !test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags)) - delay = schedule_timeout_uninterruptible(delay); + delay = schedule_timeout_interruptible(delay); } } @@ -478,7 +478,7 @@ void bch_sectors_dirty_init(struct cached_dev *dc) dc->disk.sectors_dirty_last = bcache_dev_sectors_dirty(&dc->disk); } -int bch_cached_dev_writeback_init(struct cached_dev *dc) +void bch_cached_dev_writeback_init(struct cached_dev *dc) { sema_init(&dc->in_flight, 64); init_rwsem(&dc->writeback_lock); @@ -494,14 +494,20 @@ int bch_cached_dev_writeback_init(struct cached_dev *dc) dc->writeback_rate_d_term = 30; dc->writeback_rate_p_term_inverse = 6000; + INIT_DELAYED_WORK(&dc->writeback_rate_update, update_writeback_rate); +} + +int bch_cached_dev_writeback_start(struct cached_dev *dc) +{ dc->writeback_thread = kthread_create(bch_writeback_thread, dc, "bcache_writeback"); if (IS_ERR(dc->writeback_thread)) return PTR_ERR(dc->writeback_thread); - INIT_DELAYED_WORK(&dc->writeback_rate_update, update_writeback_rate); schedule_delayed_work(&dc->writeback_rate_update, dc->writeback_rate_update_seconds * HZ); + bch_writeback_queue(dc); + return 0; } |