From: Bart Van Assche <bart.vanassche@wdc.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
Bart Van Assche <bart.vanassche@wdc.com>
Subject: [PATCH 0/5] Make SCSI device suspend work reliably
Date: Fri, 8 Sep 2017 16:52:21 -0700 [thread overview]
Message-ID: <20170908235226.26622-1-bart.vanassche@wdc.com> (raw)
Hello Jens,
Recently it was reported on the block layer mailing list that suspend
does not work reliably neither for the legacy block layer nor for blk-mq.
The purpose of this patch series is to make device suspend work reliably
without affecting the hot path significantly and without introducing any
race conditions between request queue cleanup and blk_get_request().
Please consider this patch series for kernel v4.15.
Thanks,
Bart.
Bart Van Assche (5):
percpu-refcount: Introduce percpu_ref_switch_to_atomic_nowait()
scsi: Change the type of the second last argument of scsi_execute()
block: Introduce REQ_PM and remove RQF_PM
block: Make SCSI device suspend work reliably
blk-mq: Implement power management support
block/blk-core.c | 89 ++++++++++++++++++++++++++---------------
block/blk-mq-debugfs.c | 2 +-
block/blk-mq.c | 34 ++++++++++++++++
block/blk.h | 12 ++++++
block/elevator.c | 4 +-
drivers/scsi/scsi_lib.c | 15 +++----
drivers/scsi/sd.c | 4 +-
drivers/scsi/ufs/ufshcd.c | 11 ++---
include/linux/blk_types.h | 2 +
include/linux/blkdev.h | 3 +-
include/linux/percpu-refcount.h | 1 +
include/scsi/scsi_device.h | 2 +-
lib/percpu-refcount.c | 21 ++++++++++
13 files changed, 147 insertions(+), 53 deletions(-)
--
2.14.1
next reply other threads:[~2017-09-08 23:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-08 23:52 Bart Van Assche [this message]
2017-09-08 23:52 ` [PATCH 1/5] percpu-refcount: Introduce percpu_ref_switch_to_atomic_nowait() Bart Van Assche
2017-09-11 8:42 ` Johannes Thumshirn
2017-09-11 16:10 ` Bart Van Assche
2017-09-11 13:13 ` Tejun Heo
2017-09-11 16:09 ` Bart Van Assche
2017-09-11 16:37 ` tj
2017-09-11 16:55 ` Bart Van Assche
2017-09-11 17:20 ` Tejun Heo
2017-09-11 17:29 ` Bart Van Assche
2017-09-08 23:52 ` [PATCH 2/5] scsi: Change the type of the second last argument of scsi_execute() Bart Van Assche
2017-09-08 23:52 ` [PATCH 3/5] block: Introduce REQ_PM and remove RQF_PM Bart Van Assche
2017-09-08 23:52 ` [PATCH 4/5] block: Make SCSI device suspend work reliably Bart Van Assche
2017-09-12 2:29 ` Ming Lei
2017-09-12 15:45 ` Bart Van Assche
2017-09-12 16:10 ` Ming Lei
2017-09-12 16:25 ` Ming Lei
2017-09-08 23:52 ` [PATCH 5/5] blk-mq: Implement power management support Bart Van Assche
2017-09-12 9:14 ` Ming Lei
2017-09-09 10:39 ` [PATCH 0/5] Make SCSI device suspend work reliably Ming Lei
2017-09-11 16:25 ` Bart Van Assche
2017-09-12 2:17 ` Ming Lei
-- strict thread matches above, loose matches on Subject: below --
2017-09-09 14:35 Oleksandr Natalenko
2017-09-11 17:31 ` Bart Van Assche
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