[PATCH 6.1 089/101] block: remove the blk_flush_integrity call in blk_integrity_unregister

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6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Christoph Hellwig <hch@xxxxxx>

[ Upstream commit e8bc14d116aeac8f0f133ec8d249acf4e0658da7 ]

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@xxxxxx>
Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
Link: https://lore.kernel.org/r/20240613084839.1044015-7-hch@xxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 block/blk-integrity.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 69eed260a823..e2d88611d5bf 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -431,8 +431,6 @@ void blk_integrity_unregister(struct gendisk *disk)
 	if (!bi->profile)
 		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







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