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bcache: Fix sysfs splat on shutdown with flash only devs

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Signed-off-by: Kent Overstreet <kmo@daterainc.com>
This commit is contained in:
Kent Overstreet
2013-08-21 17:49:09 -07:00
parent 48a915a87f
commit c4d951ddb6
6 changed files with 30 additions and 33 deletions
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6
drivers/md/bcache/writeback.c
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@@ -89,7 +89,7 @@ static unsigned writeback_delay(struct cached_dev *dc, unsigned sectors)
{
uint64_t ret;
if (atomic_read(&dc->disk.detaching) ||
if (test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) ||
!dc->writeback_percent)
return 0;
@@ -404,7 +404,7 @@ static int bch_writeback_thread(void *arg)
while (!kthread_should_stop()) {
down_write(&dc->writeback_lock);
if (!atomic_read(&dc->has_dirty) ||
(!atomic_read(&dc->disk.detaching) &&
(!test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) &&
!dc->writeback_running)) {
up_write(&dc->writeback_lock);
set_current_state(TASK_INTERRUPTIBLE);
@@ -437,7 +437,7 @@ static int bch_writeback_thread(void *arg)
while (delay &&
!kthread_should_stop() &&
!atomic_read(&dc->disk.detaching))
!test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags))
delay = schedule_timeout_interruptible(delay);
}
}