From: Keith Busch <keith.busch@intel.com>
To: linux-scsi@vger.kernel.org, linux-block@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>,
Martin Petersen <martin.petersen@oracle.com>,
Bart Van Assche <bvanassche@acm.org>,
Christoph Hellwig <hch@lst.de>,
Keith Busch <keith.busch@intel.com>
Subject: [PATCHv4 0/3] scsi timeout handling updates
Date: Mon, 26 Nov 2018 09:54:27 -0700 [thread overview]
Message-ID: <20181126165430.4519-1-keith.busch@intel.com> (raw)
The iterative update to the previous version taking into account review
comments.
Background:
The main objective is to remove the generic block layer's lock prefix
currently required to transition a request to its completed state by
shifting that expense to lower level drivers that actually need it,
and removing the software layering violation that was required to use
that mechnaism.
Changes since v3:
The complete state is moved to its own field separate from the
non-atomic scsi_cmnd "flags" field.
Code comments added to describe the more obscure handling for fake
timeout injection.
Keith Busch (3):
blk-mq: Return true if request was completed
scsi: Do not rely on blk-mq for double completions
blk-mq: Simplify request completion state
block/blk-mq.c | 9 ++++-----
drivers/scsi/scsi_error.c | 22 +++++++++++-----------
drivers/scsi/scsi_lib.c | 13 ++++++++++++-
include/linux/blk-mq.h | 16 +---------------
include/scsi/scsi_cmnd.h | 4 ++++
5 files changed, 32 insertions(+), 32 deletions(-)
--
2.14.4
next reply other threads:[~2018-11-26 16:57 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-26 16:54 Keith Busch [this message]
2018-11-26 16:54 ` [PATCHv4 1/3] blk-mq: Return true if request was completed Keith Busch
2018-11-26 17:00 ` Christoph Hellwig
2018-11-26 16:54 ` [PATCHv4 2/3] scsi: Do not rely on blk-mq for double completions Keith Busch
2018-11-26 17:01 ` Christoph Hellwig
2018-11-26 16:54 ` [PATCHv4 3/3] blk-mq: Simplify request completion state Keith Busch
2018-11-26 17:01 ` Christoph Hellwig
2018-11-26 17:33 ` [PATCHv4 0/3] scsi timeout handling updates Jens Axboe
2018-11-28 2:20 ` Ming Lei
2018-11-28 7:00 ` Christoph Hellwig
2018-11-28 10:07 ` Ming Lei
2018-11-28 10:08 ` Christoph Hellwig
2018-11-28 15:49 ` Keith Busch
2018-11-28 15:58 ` Jens Axboe
2018-11-28 16:26 ` Keith Busch
2018-11-28 16:31 ` Jens Axboe
2018-11-28 17:56 ` Keith Busch
2018-11-29 1:18 ` Ming Lei
2018-11-28 22:31 ` Keith Busch
2018-11-28 23:36 ` Keith Busch
2018-11-29 17:11 ` Christoph Hellwig
2018-11-29 17:20 ` Keith Busch
2018-12-28 12:47 ` Hannes Reinecke
2018-11-29 2:15 ` Ming Lei
2018-11-29 2:39 ` Martin K. Petersen
2018-11-29 8:12 ` Ming Lei
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