From: Christoph Hellwig <hch@infradead.org>
To: Joanne Koong <joannelkoong@gmail.com>
Cc: axboe@kernel.dk, miklos@szeredi.hu, bschubert@ddn.com,
csander@purestorage.com, krisman@suse.de,
io-uring@vger.kernel.org, asml.silence@gmail.com,
xiaobing.li@samsung.com, safinaskar@gmail.com,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v4 00/25] fuse/io-uring: add kernel-managed buffer rings and zero-copy
Date: Thu, 5 Feb 2026 23:42:21 -0800 [thread overview]
Message-ID: <aYWbXV9pfyLwfy-t@infradead.org> (raw)
In-Reply-To: <20260116233044.1532965-1-joannelkoong@gmail.com>
On Fri, Jan 16, 2026 at 03:30:19PM -0800, Joanne Koong wrote:
> This series adds buffer ring and zero-copy capabilities to fuse over io-uring.
> This requires adding a new kernel-managed buf (kmbuf) ring type to io-uring
> where the buffers are provided and managed by the kernel instead of by
> userspace.
>
> On the io-uring side, the kmbuf interface is basically identical to pbufs.
> They differ mostly in how the memory region is set up and whether it is
> userspace or kernel that recycles back the buffer. Internally, the
> IOBL_KERNEL_MANAGED flag is used to mark the buffer ring as kernel-managed.
Can you split that series out as it also has other applications
and smaller series might be easier to review?
prev parent reply other threads:[~2026-02-06 7:42 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-16 23:30 [PATCH v4 00/25] fuse/io-uring: add kernel-managed buffer rings and zero-copy Joanne Koong
2026-01-16 23:30 ` [PATCH v4 01/25] io_uring/kbuf: refactor io_buf_pbuf_register() logic into generic helpers Joanne Koong
2026-01-16 23:30 ` [PATCH v4 02/25] io_uring/kbuf: rename io_unregister_pbuf_ring() to io_unregister_buf_ring() Joanne Koong
2026-01-16 23:30 ` [PATCH v4 03/25] io_uring/kbuf: add support for kernel-managed buffer rings Joanne Koong
2026-02-06 7:53 ` Christoph Hellwig
2026-01-16 23:30 ` [PATCH v4 04/25] io_uring/kbuf: add mmap " Joanne Koong
2026-01-16 23:30 ` [PATCH v4 05/25] io_uring/kbuf: support kernel-managed buffer rings in buffer selection Joanne Koong
2026-01-16 23:30 ` [PATCH v4 06/25] io_uring/kbuf: add buffer ring pinning/unpinning Joanne Koong
2026-02-03 18:52 ` Bernd Schubert
2026-02-05 19:37 ` Joanne Koong
2026-01-16 23:30 ` [PATCH v4 07/25] io_uring/kbuf: add recycling for kernel managed buffer rings Joanne Koong
2026-02-03 18:44 ` Bernd Schubert
2026-02-05 19:47 ` Joanne Koong
2026-02-05 20:42 ` Bernd Schubert
2026-01-16 23:30 ` [PATCH v4 08/25] io_uring: add io_uring_fixed_index_get() and io_uring_fixed_index_put() Joanne Koong
2026-01-22 21:02 ` Caleb Sander Mateos
2026-01-27 20:05 ` Joanne Koong
2026-01-16 23:30 ` [PATCH v4 09/25] io_uring/kbuf: add io_uring_is_kmbuf_ring() Joanne Koong
2026-01-16 23:30 ` [PATCH v4 10/25] io_uring/kbuf: export io_ring_buffer_select() Joanne Koong
2026-01-16 23:30 ` [PATCH v4 11/25] io_uring/kbuf: return buffer id in buffer selection Joanne Koong
2026-01-16 23:30 ` [PATCH v4 12/25] io_uring/cmd: set selected buffer index in __io_uring_cmd_done() Joanne Koong
2026-01-16 23:30 ` [PATCH v4 13/25] fuse: refactor io-uring logic for getting next fuse request Joanne Koong
2026-01-16 23:30 ` [PATCH v4 14/25] fuse: refactor io-uring header copying to ring Joanne Koong
2026-01-16 23:30 ` [PATCH v4 15/25] fuse: refactor io-uring header copying from ring Joanne Koong
2026-01-27 23:11 ` Bernd Schubert
2026-01-16 23:30 ` [PATCH v4 16/25] fuse: use enum types for header copying Joanne Koong
2026-01-16 23:30 ` [PATCH v4 17/25] fuse: refactor setting up copy state for payload copying Joanne Koong
2026-01-16 23:30 ` [PATCH v4 18/25] fuse: support buffer copying for kernel addresses Joanne Koong
2026-01-27 23:39 ` Bernd Schubert
2026-01-28 0:23 ` Joanne Koong
2026-01-28 21:14 ` Bernd Schubert
2026-01-29 1:16 ` Joanne Koong
2026-01-16 23:30 ` [PATCH v4 19/25] fuse: add io-uring kernel-managed buffer ring Joanne Koong
2026-01-17 5:28 ` kernel test robot
2026-01-28 21:44 ` Bernd Schubert
2026-01-29 1:15 ` Joanne Koong
2026-01-16 23:30 ` [PATCH v4 20/25] io_uring/rsrc: rename io_buffer_register_bvec()/io_buffer_unregister_bvec() Joanne Koong
2026-01-16 23:30 ` [PATCH v4 21/25] io_uring/rsrc: split io_buffer_register_request() logic Joanne Koong
2026-01-16 23:30 ` [PATCH v4 22/25] io_uring/rsrc: Allow buffer release callback to be optional Joanne Koong
2026-01-16 23:30 ` [PATCH v4 23/25] io_uring/rsrc: add io_buffer_register_bvec() Joanne Koong
2026-01-16 23:30 ` [PATCH v4 24/25] fuse: add zero-copy over io-uring Joanne Koong
2026-01-16 23:30 ` [PATCH v4 25/25] docs: fuse: add io-uring bufring and zero-copy documentation Joanne Koong
2026-02-03 18:56 ` Bernd Schubert
2026-02-05 20:30 ` Joanne Koong
2026-01-27 20:12 ` [PATCH v4 00/25] fuse/io-uring: add kernel-managed buffer rings and zero-copy Joanne Koong
2026-01-27 22:44 ` Bernd Schubert
2026-01-27 23:27 ` Joanne Koong
2026-02-06 7:42 ` Christoph Hellwig [this message]
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