e0d245e223
Pull MD changes from Song: "1) iostats rewrite by Guoqing Jiang; 2) raid5 lock contention optimization by Gal Ofri." * 'md-next' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md: md/raid5: avoid device_lock in read_one_chunk() md: add comments in md_integrity_register md: check level before create and exit io_acct_set md: Constify attribute_group structs md: mark some personalities as deprecated md/raid10: enable io accounting md/raid1: enable io accounting md/raid1: rename print_msg with r1bio_existed md/raid5: avoid redundant bio clone in raid5_read_one_chunk md/raid5: move checking badblock before clone bio in raid5_read_one_chunk md: add io accounting for raid0 and raid5 md: revert io stats accounting
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.
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.