From: Aarushi Mehta <mehta.aaru20@gmail.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
qemu-block@nongnu.org, saket.sinha89@gmail.com,
Stefan Hajnoczi <stefanha@redhat.com>,
Julia Suvorova <jusual@mail.ru>,
Aarushi Mehta <mehta.aaru20@gmail.com>
Subject: [Qemu-devel] [RFC PATCH v2 0/9] Add support for io_uring
Date: Fri, 24 May 2019 19:33:28 +0530 [thread overview]
Message-ID: <20190524140337.13415-1-mehta.aaru20@gmail.com> (raw)
This patch series adds support for the newly developed io_uring Linux AIO interface. Linux io_uring is faster than Linux's AIO asynchronous I/O code, offers efficient buffered asynchronous I/O support, the ability to do I/O without performing a system call via polled I/O, and other efficiency enhancements. It is expected that it will replace the old AIO interface
Testing it requires a host kernel 5.1 or newer and the liburing library. Use the option -drive aio=io_uring to enable it.
v2:
- Fix Patchew errors
- Option now enumerates only for CONFIG_LINUX in qapi
- Removed redudant and broken code in io_uring
- io_uring now aborts on sqe leak
Aarushi Mehta (9):
qapi/block-core: add option for io_uring
block/block: add BDRV flag for io_uring
include/block: declare interfaces for io_uring
stubs: add aio interface stubs for io_uring
util/async: add aio interfaces for io_uring
block/io_uring: implements interfaces for io_uring
blockdev: accept io_uring as option
block/file-posix: extends to use with io_uring
configure: permit use of io_uring
MAINTAINERS | 11 ++
block/Makefile.objs | 2 +
block/file-posix.c | 63 ++++++++-
block/io_uring.c | 306 ++++++++++++++++++++++++++++++++++++++++
blockdev.c | 4 +-
configure | 27 ++++
include/block/aio.h | 16 ++-
include/block/block.h | 1 +
include/block/raw-aio.h | 15 ++
qapi/block-core.json | 6 +-
stubs/Makefile.objs | 1 +
stubs/io_uring.c | 32 +++++
util/async.c | 36 +++++
13 files changed, 511 insertions(+), 9 deletions(-)
create mode 100644 block/io_uring.c
create mode 100644 stubs/io_uring.c
--
2.17.1
next reply other threads:[~2019-05-24 14:09 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-24 14:03 Aarushi Mehta [this message]
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 1/9] qapi/block-core: add option for io_uring Aarushi Mehta
2019-05-24 15:12 ` Stefan Hajnoczi
2019-05-24 16:17 ` Markus Armbruster
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 2/9] block/block: add BDRV flag " Aarushi Mehta
2019-05-24 15:12 ` Stefan Hajnoczi
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 3/9] include/block: declare interfaces " Aarushi Mehta
2019-05-24 15:16 ` Stefan Hajnoczi
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 4/9] stubs: add aio interface stubs " Aarushi Mehta
2019-05-24 15:24 ` Stefan Hajnoczi
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 5/9] util/async: add aio interfaces " Aarushi Mehta
2019-05-24 15:25 ` Stefan Hajnoczi
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 6/9] block/io_uring: implements " Aarushi Mehta
2019-05-24 16:17 ` Stefan Hajnoczi
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 7/9] blockdev: accept io_uring as option Aarushi Mehta
2019-05-24 16:17 ` Stefan Hajnoczi
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 8/9] block/file-posix: extends to use with io_uring Aarushi Mehta
2019-05-24 16:19 ` Stefan Hajnoczi
2019-05-24 14:03 ` [Qemu-devel] [RFC PATCH v2 9/9] configure: permit use of io_uring Aarushi Mehta
2019-05-24 16:20 ` Stefan Hajnoczi
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