From: Jens Axboe <axboe@kernel.dk>
To: linux-aio@kvack.org, linux-block@vger.kernel.org,
linux-api@vger.kernel.org
Cc: hch@lst.de, jmoyer@redhat.com, avi@scylladb.com,
jannh@google.com, viro@ZenIV.linux.org.uk
Subject: [PATCHSET v12] io_uring IO interface
Date: Thu, 7 Feb 2019 12:55:34 -0700 [thread overview]
Message-ID: <20190207195552.22770-1-axboe@kernel.dk> (raw)
Here's v12 of the io_uring project. This is the Al Viro special, where
Al tries to beat into my head how UNIX fd passing will mess you up. I
think we have all cases handled now. I've added the resulting test case
into the liburing test/ directory.
Outside of that, various little cleanups and fixes, and a revert of
using FOLL_ANON to map IO buffers. This makes it fail with huge pages,
something that we can (and do want to) support. We're now back to just
checking for a file backing in the vma.
As far as I'm concerned, this project is ready to get staged for 5.1.
Please do review carefully so we can fix any minor nits that might still
exist.
The liburing git repo has a full set of man pages for this, though they
could probably still use a bit of polish. I'd also like to see a
io_uring(7) man page to describe the overall design of the project,
expect that in the not-so-distant future. You can clone that here:
git://git.kernel.dk/liburing
Patches are against 5.0-rc5, and can also be found in my io_uring branch
here:
git://git.kernel.dk/linux-block io_uring
Since v11:
- Get rid of the need for storing a files_struct
- Protect against release loop when UNIX fd passing is used
- Retain kiocb state for EAGAIN async retry
- Cleanup io memory accounting
- Revert to using non-FOLL_ANON, as we do want to support huge pages
- Fix uid leak
- Address various review comments
- Rebase on v5.0-rc5
Documentation/filesystems/vfs.txt | 3 +
arch/x86/entry/syscalls/syscall_32.tbl | 3 +
arch/x86/entry/syscalls/syscall_64.tbl | 3 +
block/bio.c | 59 +-
fs/Makefile | 1 +
fs/block_dev.c | 19 +-
fs/file.c | 15 +-
fs/file_table.c | 9 +-
fs/gfs2/file.c | 2 +
fs/io_uring.c | 2741 ++++++++++++++++++++++++
fs/iomap.c | 48 +-
fs/xfs/xfs_file.c | 1 +
include/linux/bio.h | 14 +
include/linux/blk_types.h | 1 +
include/linux/file.h | 2 +
include/linux/fs.h | 15 +-
include/linux/iomap.h | 1 +
include/linux/sched/user.h | 2 +-
include/linux/syscalls.h | 8 +
include/net/af_unix.h | 1 +
include/uapi/asm-generic/unistd.h | 8 +-
include/uapi/linux/io_uring.h | 142 ++
init/Kconfig | 9 +
kernel/sys_ni.c | 3 +
net/unix/af_unix.c | 2 +-
net/unix/garbage.c | 3 +
26 files changed, 3073 insertions(+), 42 deletions(-)
--
Jens Axboe
next reply other threads:[~2019-02-07 19:56 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-07 19:55 Jens Axboe [this message]
2019-02-07 19:55 ` [PATCH 01/18] fs: add an iopoll method to struct file_operations Jens Axboe
2019-02-07 19:55 ` [PATCH 02/18] block: wire up block device iopoll method Jens Axboe
2019-02-07 19:55 ` [PATCH 03/18] block: add bio_set_polled() helper Jens Axboe
2019-02-07 19:55 ` [PATCH 04/18] iomap: wire up the iopoll method Jens Axboe
2019-02-07 19:55 ` [PATCH 05/18] Add io_uring IO interface Jens Axboe
2019-02-07 20:15 ` Keith Busch
2019-02-07 20:16 ` Jens Axboe
2019-02-07 19:55 ` [PATCH 06/18] io_uring: add fsync support Jens Axboe
2019-02-07 19:55 ` [PATCH 07/18] io_uring: support for IO polling Jens Axboe
2019-02-07 19:55 ` [PATCH 08/18] fs: add fget_many() and fput_many() Jens Axboe
2019-02-07 19:55 ` [PATCH 09/18] io_uring: use fget/fput_many() for file references Jens Axboe
2019-02-07 19:55 ` [PATCH 10/18] io_uring: batch io_kiocb allocation Jens Axboe
2019-02-07 19:55 ` [PATCH 11/18] block: implement bio helper to add iter bvec pages to bio Jens Axboe
2019-02-07 19:55 ` [PATCH 12/18] io_uring: add support for pre-mapped user IO buffers Jens Axboe
2019-02-07 20:57 ` Jeff Moyer
2019-02-07 21:02 ` Jens Axboe
2019-02-07 22:38 ` Jeff Moyer
2019-02-07 22:47 ` Jens Axboe
2019-02-07 19:55 ` [PATCH 13/18] io_uring: add file set registration Jens Axboe
2019-02-08 12:17 ` Alan Jenkins
2019-02-08 12:57 ` Jens Axboe
2019-02-08 14:02 ` Alan Jenkins
2019-02-08 15:13 ` Jens Axboe
2019-02-12 12:29 ` Alan Jenkins
2019-02-12 15:17 ` Jens Axboe
2019-02-12 17:21 ` Alan Jenkins
2019-02-12 17:33 ` Jens Axboe
2019-02-12 20:23 ` Alan Jenkins
2019-02-12 21:10 ` Jens Axboe
2019-02-07 19:55 ` [PATCH 14/18] io_uring: add submission polling Jens Axboe
2019-02-07 19:55 ` [PATCH 15/18] io_uring: add io_kiocb ref count Jens Axboe
2019-02-07 19:55 ` [PATCH 16/18] io_uring: add support for IORING_OP_POLL Jens Axboe
2019-02-07 22:12 ` Jeff Moyer
2019-02-07 22:18 ` Jens Axboe
2019-02-07 19:55 ` [PATCH 17/18] io_uring: allow workqueue item to handle multiple buffered requests Jens Axboe
2019-02-07 19:55 ` [PATCH 18/18] io_uring: add io_uring_event cache hit information Jens Axboe
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