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authorMing Lei <ming.lei@redhat.com>2019-04-30 09:52:29 +0800
committerJens Axboe <axboe@kernel.dk>2019-05-04 07:24:11 -0600
commit662156641bc409a28fa313fca1a755105425d278 (patch)
tree555c59d4df3bd2500b82bf48c2a0056adf977a32 /block
parent1b97871b501f1bac0fd39a073c4c8473ee457a55 (diff)
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block: don't drain in-progress dispatch in blk_cleanup_queue()
Now freeing hw queue resource is moved to hctx's release handler, we don't need to worry about the race between blk_cleanup_queue and run queue any more. So don't drain in-progress dispatch in blk_cleanup_queue(). This is basically revert of c2856ae2f315 ("blk-mq: quiesce queue before freeing queue"). Cc: Dongli Zhang <dongli.zhang@oracle.com> Cc: James Smart <james.smart@broadcom.com> Cc: Bart Van Assche <bart.vanassche@wdc.com> Cc: linux-scsi@vger.kernel.org, Cc: Martin K . Petersen <martin.petersen@oracle.com>, Cc: Christoph Hellwig <hch@lst.de>, Cc: James E . J . Bottomley <jejb@linux.vnet.ibm.com>, Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Hannes Reinecke <hare@suse.com> Tested-by: James Smart <james.smart@broadcom.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/blk-core.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 6722b24a1182..419d600e6637 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -339,18 +339,6 @@ void blk_cleanup_queue(struct request_queue *q)
blk_queue_flag_set(QUEUE_FLAG_DEAD, q);
- /*
- * make sure all in-progress dispatch are completed because
- * blk_freeze_queue() can only complete all requests, and
- * dispatch may still be in-progress since we dispatch requests
- * from more than one contexts.
- *
- * We rely on driver to deal with the race in case that queue
- * initialization isn't done.
- */
- if (queue_is_mq(q) && blk_queue_init_done(q))
- blk_mq_quiesce_queue(q);
-
/* for synchronous bio-based driver finish in-flight integrity i/o */
blk_flush_integrity();