Jens Axboe 93e9d8e836 block: add ability to flag write back caching on a device ...

Add an internal helper and flag for setting whether a queue has
write back caching, or write through (or none). Add a sysfs file
to show this as well, and make it changeable from user space.

This will replace the (awkward) blk_queue_flush() interface that
drivers currently use to inform the block layer of write cache state
and capabilities.

Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>

2016-04-12 15:46:27 -06:00

..

00-INDEX

Documentation/: update 00-INDEX files

2014-02-10 16:01:40 -08:00

biodoc.txt

block: add a bi_error field to struct bio

2015-07-29 08:55:15 -06:00

biovecs.txt

Documentation: update notes in biovecs about arbitrarily sized bios

2015-08-13 12:32:07 -06:00

capability.txt

genhd: expose AN to user space

2007-05-23 20:14:11 -07:00

cfq-iosched.txt

Fix CFQ I/O scheduler parameter name in documentation

2015-12-10 11:26:24 -07:00

cmdline-partition.txt

block: change config option name for cmdline partition parsing

2013-09-30 14:31:02 -07:00

data-integrity.txt

block: Remove integrity tagging functions

2014-09-27 09:14:50 -06:00

deadline-iosched.txt

trivial: Miscellaneous documentation typo fixes

2009-06-12 18:01:47 +02:00

ioprio.txt

Update Jens Axboe's email in Documentation/*

2007-10-16 09:59:55 +02:00

null_blk.txt

null_blk: register as a LightNVM device

2015-11-16 15:22:28 -07:00

pr.txt

block: add an API for Persistent Reservations

2015-10-21 14:46:56 -06:00

queue-sysfs.txt

block: add ability to flag write back caching on a device

2016-04-12 15:46:27 -06:00

request.txt

Update Jens Axboe's email in Documentation/*

2007-10-16 09:59:55 +02:00

stat.txt

[PATCH] block/stat.txt

2006-01-08 20:14:01 -08:00

switching-sched.txt

Documentation: drop as block elevator reference in switching-sched.txt

2011-11-04 12:01:48 -07:00

writeback_cache_control.txt

block: update documentation for REQ_FLUSH / REQ_FUA

2010-09-10 12:35:37 +02:00