linux/Documentation/block
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