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authorChristoph Hellwig <hch@lst.de>2021-09-29 09:12:41 +0200
committerJens Axboe <axboe@kernel.dk>2021-10-15 21:02:54 -0600
commitaec89dc5d421200b353d99a2bfff9e0967f67037 (patch)
treecfecaf05ddb52c19550291145e7b7bb087744ffd /block/blk.h
parent8e141f9eb803e209714a80aa6ec073893f94c526 (diff)
block: keep q_usage_counter in atomic mode after del_gendisk
Don't switch back to percpu mode to avoid the double RCU grace period when tearing down SCSI devices. After removing the disk only passthrough commands can be send anyway. Suggested-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Darrick J. Wong <djwong@kernel.org> Link: https://lore.kernel.org/r/20210929071241.934472-6-hch@lst.de Tested-by: Yi Zhang <yi.zhang@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk.h')
-rw-r--r--block/blk.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/block/blk.h b/block/blk.h
index e2ed2257709a..6c3c00a8fe19 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -51,6 +51,7 @@ struct blk_flush_queue *blk_alloc_flush_queue(int node, int cmd_size,
void blk_free_flush_queue(struct blk_flush_queue *q);
void blk_freeze_queue(struct request_queue *q);
+void __blk_mq_unfreeze_queue(struct request_queue *q, bool force_atomic);
void blk_queue_start_drain(struct request_queue *q);
#define BIO_INLINE_VECS 4