From: Jens Axboe <axboe@kernel.dk>
To: linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-aio@kvack.org
Cc: hch@lst.de, jmoyer@redhat.com, clm@fb.com
Subject: [PATCHSET v6] Support for polled aio (and more)
Date: Fri, 7 Dec 2018 15:19:50 -0700 [thread overview]
Message-ID: <20181207222016.29387-1-axboe@kernel.dk> (raw)
For the grand introduction to this feature, see my original posting
here:
https://lore.kernel.org/linux-block/20181117235317.7366-1-axboe@kernel.dk/
and refer to the previous postings of this patchset for whatever
features were added there. Particularly v4 has some performance results:
https://lore.kernel.org/linux-block/20181130165646.27341-1-axboe@kernel.dk/
No new features in this version, I think we've got what we need. Just
a collection of fixes. Especially interesting is probably that XFS is
tested in all configurations now, it works with both IO polling and
fixed user buffers.
Find it here for your cgit browsing:
http://git.kernel.dk/cgit/linux-block/log/?h=aio-poll
or clone/pull from this branch:
git://git.kernel.dk/linux-block aio-poll
Since v5
- Correct spin/no-spin condition for polling
- Add some comments
- Fix missing io_event_ring(2) if !CONFIG_AIO
- Make sure XFS works for all cases
- Fix cq/sq ring sizing
- Make cq/sq ring work with non-polled IO
- Make cq/sq ring work without fixed buffers
- Ensure that io_ring_enter() doesn't race with kill_ioctx()
- Rebase on top of for-4.21/block
Documentation/filesystems/vfs.txt | 3 +
arch/x86/entry/syscalls/syscall_64.tbl | 2 +
block/bio.c | 33 +-
fs/aio.c | 1538 +++++++++++++++++++++---
fs/block_dev.c | 34 +-
fs/file.c | 15 +-
fs/file_table.c | 10 +-
fs/gfs2/file.c | 2 +
fs/iomap.c | 57 +-
fs/xfs/xfs_file.c | 1 +
include/linux/bio.h | 1 +
include/linux/blk_types.h | 2 +
include/linux/file.h | 2 +
include/linux/fs.h | 5 +-
include/linux/iomap.h | 1 +
include/linux/syscalls.h | 5 +
include/uapi/asm-generic/unistd.h | 4 +-
include/uapi/linux/aio_abi.h | 32 +
kernel/sys_ni.c | 2 +
19 files changed, 1552 insertions(+), 197 deletions(-)
--
Jens Axboe
next reply other threads:[~2018-12-07 22:20 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-07 22:19 Jens Axboe [this message]
2018-12-07 22:19 ` [PATCH 01/26] fs: add an iopoll method to struct file_operations Jens Axboe
2018-12-07 22:19 ` [PATCH 02/26] block: add REQ_HIPRI_ASYNC Jens Axboe
2018-12-07 22:19 ` [PATCH 03/26] block: wire up block device iopoll method Jens Axboe
2018-12-07 22:19 ` [PATCH 04/26] block: use REQ_HIPRI_ASYNC for non-sync polled IO Jens Axboe
2018-12-07 22:19 ` [PATCH 05/26] iomap: wire up the iopoll method Jens Axboe
2018-12-07 22:19 ` [PATCH 06/26] aio: use assigned completion handler Jens Axboe
2018-12-07 22:19 ` [PATCH 07/26] aio: separate out ring reservation from req allocation Jens Axboe
2018-12-07 22:19 ` [PATCH 08/26] aio: don't zero entire aio_kiocb aio_get_req() Jens Axboe
2018-12-07 22:19 ` [PATCH 09/26] aio: only use blk plugs for > 2 depth submissions Jens Axboe
2018-12-07 22:20 ` [PATCH 10/26] aio: use iocb_put() instead of open coding it Jens Axboe
2018-12-07 22:20 ` [PATCH 11/26] aio: split out iocb copy from io_submit_one() Jens Axboe
2018-12-07 22:20 ` [PATCH 12/26] aio: abstract out io_event filler helper Jens Axboe
2018-12-07 22:20 ` [PATCH 13/26] aio: add io_setup2() system call Jens Axboe
2018-12-09 10:12 ` Benny Halevy
2018-12-09 14:37 ` Jens Axboe
2018-12-07 22:20 ` [PATCH 14/26] aio: add support for having user mapped iocbs Jens Axboe
2018-12-07 22:20 ` [PATCH 15/26] aio: support for IO polling Jens Axboe
2018-12-09 10:02 ` Benny Halevy
2018-12-09 14:36 ` Jens Axboe
2018-12-10 8:10 ` Benny Halevy
2018-12-07 22:20 ` [PATCH 16/26] aio: add submission side request cache Jens Axboe
2018-12-07 22:20 ` [PATCH 17/26] fs: add fget_many() and fput_many() Jens Axboe
2018-12-07 22:20 ` [PATCH 18/26] aio: use fget/fput_many() for file references Jens Axboe
2018-12-07 22:20 ` [PATCH 19/26] aio: split iocb init from allocation Jens Axboe
2018-12-07 22:20 ` [PATCH 20/26] aio: batch aio_kiocb allocation Jens Axboe
2018-12-07 22:20 ` [PATCH 21/26] block: add BIO_HOLD_PAGES flag Jens Axboe
2018-12-07 22:20 ` [PATCH 22/26] block: implement bio helper to add iter bvec pages to bio Jens Axboe
2018-12-07 22:20 ` [PATCH 23/26] fs: add support for mapping an ITER_BVEC for O_DIRECT Jens Axboe
2018-12-07 22:20 ` [PATCH 24/26] aio: add support for pre-mapped user IO buffers Jens Axboe
2018-12-07 22:20 ` [PATCH 25/26] aio: split old ring complete out from aio_complete() Jens Axboe
2018-12-07 22:20 ` [PATCH 26/26] aio: add support for submission/completion rings Jens Axboe
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