Thread (27 messages) 27 messages, 6 authors, 2018-09-14

Re: [PATCH v4 01/10] block: Change the preempt-only flag into a counter

From: Hannes Reinecke <hare@suse.de>
Date: 2018-08-06 06:25:21

On 08/04/2018 02:03 AM, Bart Van Assche wrote:
Rename "preempt-only" into "pm-only" because the primary purpose of
this mode is power management. Since the power management core may
but does not have to resume a runtime suspended device before
performing system-wide suspend and since a later patch will set
"pm-only" mode as long as a block device is runtime suspended, make
it possible to set "pm-only" mode from more than one context.

Signed-off-by: Bart Van Assche <redacted>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jianchao Wang <redacted>
Cc: Ming Lei <redacted>
Cc: Johannes Thumshirn <redacted>
Cc: Alan Stern <stern@rowland.harvard.edu>
---
 block/blk-core.c        | 35 ++++++++++++++++++-----------------
 block/blk-mq-debugfs.c  | 10 +++++++++-
 drivers/scsi/scsi_lib.c |  8 ++++----
 include/linux/blkdev.h  | 14 +++++++++-----
 4 files changed, 40 insertions(+), 27 deletions(-)
Reviewed-by: Hannes Reinecke <hare@suse.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@suse.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
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