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Diffstat (limited to 'drivers/md/dm-table.c')
-rw-r--r--drivers/md/dm-table.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 6a7f2b83a126..50601ec7017a 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -945,7 +945,7 @@ bool dm_table_request_based(struct dm_table *t)
return dm_table_get_type(t) == DM_TYPE_REQUEST_BASED;
}
-int dm_table_alloc_md_mempools(struct dm_table *t)
+static int dm_table_alloc_md_mempools(struct dm_table *t)
{
unsigned type = dm_table_get_type(t);
unsigned per_bio_data_size = 0;
@@ -1618,6 +1618,25 @@ struct mapped_device *dm_table_get_md(struct dm_table *t)
}
EXPORT_SYMBOL(dm_table_get_md);
+void dm_table_run_md_queue_async(struct dm_table *t)
+{
+ struct mapped_device *md;
+ struct request_queue *queue;
+ unsigned long flags;
+
+ if (!dm_table_request_based(t))
+ return;
+
+ md = dm_table_get_md(t);
+ queue = dm_get_md_queue(md);
+ if (queue) {
+ spin_lock_irqsave(queue->queue_lock, flags);
+ blk_run_queue_async(queue);
+ spin_unlock_irqrestore(queue->queue_lock, flags);
+ }
+}
+EXPORT_SYMBOL(dm_table_run_md_queue_async);
+
static int device_discard_capable(struct dm_target *ti, struct dm_dev *dev,
sector_t start, sector_t len, void *data)
{