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Filename Latest commit message Latest commit date
Jens Axboe def596e955 io_uring: support for IO polling
Add support for a polled io_uring instance. When a read or write is
submitted to a polled io_uring, the application must poll for
completions on the CQ ring through io_uring_enter(2). Polled IO may not
generate IRQ completions, hence they need to be actively found by the
application itself.

To use polling, io_uring_setup() must be used with the
IORING_SETUP_IOPOLL flag being set. It is illegal to mix and match
polled and non-polled IO on an io_uring.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-28 08:24:23 -07:00
arch Add io_uring IO interface 2019-02-28 08:24:23 -07:00
block block: optimize blk_bio_segment_split for single-page bvec 2019-02-27 06:18:55 -07:00
certs
crypto
Documentation fs: add an iopoll method to struct file_operations 2019-02-24 08:20:17 -07:00
drivers loop: set GENHD_FL_NO_PART_SCAN after blkdev_reread_part() 2019-02-22 15:51:22 -07:00
firmware
fs io_uring: support for IO polling 2019-02-28 08:24:23 -07:00
include io_uring: support for IO polling 2019-02-28 08:24:23 -07:00
init Add io_uring IO interface 2019-02-28 08:24:23 -07:00
ipc
kernel Add io_uring IO interface 2019-02-28 08:24:23 -07:00
lib
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net Add io_uring IO interface 2019-02-28 08:24:23 -07:00
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README

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.