linux-kernel - [PATCH V2 0/2] blk-mq: fix fix blk_mq_tagset_busy

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Date:   Fri,  3 Aug 2018 01:49:35 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     linux-block@...r.kernel.org, Ming Lei <ming.lei@...hat.com>,
        Josef Bacik <josef@...icpanda.com>,
        Christoph Hellwig <hch@....de>,
        Guenter Roeck <linux@...ck-us.net>,
        Mark Brown <broonie@...nel.org>,
        Matt Hart <matthew.hart@...aro.org>,
        Johannes Thumshirn <jthumshirn@...e.de>,
        John Garry <john.garry@...wei.com>,
        Hannes Reinecke <hare@...e.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        James Bottomley <James.Bottomley@...senpartnership.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH V2 0/2] blk-mq: fix fix blk_mq_tagset_busy_iter

Hi Jens,

The two patches fixes boot hang issue in lots of test vm system.
And the cause is in blk_mq_tagset_busy_iter().

V2:
	- move blk_mq_request_started() into header file as suggested by
	  James

Ming Lei (2):
  blk-mq: move blk_mq_request_started() into header file
  blk-mq: fix blk_mq_tagset_busy_iter

 block/blk-mq-tag.c     |  2 +-
 block/blk-mq.c         |  6 ------
 block/blk-mq.h         |  9 ---------
 include/linux/blk-mq.h | 15 ++++++++++++++-
 4 files changed, 15 insertions(+), 17 deletions(-)

Cc: Josef Bacik <josef@...icpanda.com>
Cc: Christoph Hellwig <hch@....de>
Cc: Guenter Roeck <linux@...ck-us.net>
Cc: Mark Brown <broonie@...nel.org>
Cc: Matt Hart <matthew.hart@...aro.org>
Cc: Johannes Thumshirn <jthumshirn@...e.de>
Cc: John Garry <john.garry@...wei.com>
Cc: Hannes Reinecke <hare@...e.com>,
Cc: "Martin K. Petersen" <martin.petersen@...cle.com>,
Cc: James Bottomley <James.Bottomley@...senpartnership.com>
Cc: linux-scsi@...r.kernel.org
Cc: linux-kernel@...r.kernel.org

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