Josef Bacik 0d1e0c7cd5 blk: introduce REQ_SWAP
Just like REQ_META, it's important to know the IO coming down is swap
in order to guard against potential IO priority inversion issues with
cgroups.  Add REQ_SWAP and use it for all swap IO, and add it to our
bio_issue_as_root_blkg helper.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-07-09 09:07:54 -06:00
2018-07-08 14:12:46 -07:00
2018-07-01 11:50:16 -07:00
2018-07-09 09:07:54 -06:00
2018-06-30 13:05:30 -07:00
2018-06-15 07:55:25 +09:00
2018-07-09 09:07:54 -06:00
2018-07-06 12:23:53 -07:00
2018-06-30 11:15:12 -07:00
2018-04-15 17:21:30 -07:00
2017-11-17 17:45:29 -08:00
2018-07-07 17:29:08 -07:00
2018-07-08 16:34:02 -07:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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