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-rw-r--r--drivers/md/dm.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 473f0c3..73b89af 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -452,6 +452,12 @@ static void free_bio_info(struct dm_rq_clone_bio_info *info)
mempool_free(info, info->tio->md->io_pool);
}
+static int md_in_flight(struct mapped_device *md)
+{
+ return atomic_read(&md->pending[READ]) +
+ atomic_read(&md->pending[WRITE]);
+}
+
static void start_io_acct(struct dm_io *io)
{
struct mapped_device *md = io->md;
@@ -2100,8 +2106,7 @@ static int dm_wait_for_completion(struct mapped_device *md, int interruptible)
break;
}
spin_unlock_irqrestore(q->queue_lock, flags);
- } else if (!atomic_read(&md->pending[0]) &&
- !atomic_read(&md->pending[1]))
+ } else if (!md_in_flight(md))
break;
if (interruptible == TASK_INTERRUPTIBLE &&
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