[PATCH 06/12] block: remove the blk_flush_integrity call in blk_integrity_unregister

[Christoph Hellwig <hch@lst.de>]

Now that there are no indirect calls for PI processing there is no
way to dereference a NULL pointer here.  Additionally drivers now always
freeze the queue (or in case of stacking drivers use their internal
equivalent) around changing the integrity profile.

This is effectively a revert of commit 3df49967f6f1 ("block: flush the
integrity workqueue in blk_integrity_unregister").

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
 block/blk-integrity.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 17d37badfbb8bc..24f04575096d39 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -401,8 +401,6 @@ void blk_integrity_unregister(struct gendisk *disk)
 	if (!bi->tuple_size)
 		return;
 
-	/* ensure all bios are off the integrity workqueue */
-	blk_flush_integrity();
 	blk_queue_flag_clear(QUEUE_FLAG_STABLE_WRITES, disk->queue);
 	memset(bi, 0, sizeof(*bi));
 }
-- 
2.43.0