From: Jens Axboe <[email protected]>
To: Pavel Begunkov <[email protected]>, [email protected]
Subject: Re: [PATCH 00/11] support kernel allocated regions
Date: Wed, 20 Nov 2024 18:28:46 -0700 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 11/20/24 4:33 PM, Pavel Begunkov wrote:
> The classical way SQ/CQ work is kernel doing the allocation
> and the user mmap'ing it into the userspace. Regions need to
> support it as well.
>
> The patchset should be straightforward with simple preparations
> patches and cleanups. The main part is Patch 10, which internally
> implements kernel allocations, and Patch 11 that implementing the
> mmap part and exposes it to reg-wait / parameter region users.
>
> I'll be sending liburing tests in a separate set. Additionally
> tested converting CQ/SQ to internal region api, but this change
> is left for later.
Took a quick look and I like it, agree that regions should be
broadly usable rather than be tied to pinning. I'll give this a
more thorough look in the coming days.
--
Jens Axboe
prev parent reply other threads:[~2024-11-21 1:28 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-20 23:33 [PATCH 00/11] support kernel allocated regions Pavel Begunkov
2024-11-20 23:33 ` [PATCH 01/11] io_uring: rename ->resize_lock Pavel Begunkov
2024-11-20 23:33 ` [PATCH 02/11] io_uring/rsrc: export io_check_coalesce_buffer Pavel Begunkov
2024-11-20 23:33 ` [PATCH 03/11] io_uring/memmap: add internal region flags Pavel Begunkov
2024-11-20 23:33 ` [PATCH 04/11] io_uring/memmap: flag regions with user pages Pavel Begunkov
2024-11-20 23:33 ` [PATCH 05/11] io_uring/memmap: account memory before pinning Pavel Begunkov
2024-11-20 23:33 ` [PATCH 06/11] io_uring/memmap: reuse io_free_region for failure path Pavel Begunkov
2024-11-20 23:33 ` [PATCH 07/11] io_uring/memmap: optimise single folio regions Pavel Begunkov
2024-11-20 23:33 ` [PATCH 08/11] io_uring/memmap: helper for pinning region pages Pavel Begunkov
2024-11-20 23:33 ` [PATCH 09/11] io_uring/memmap: add IO_REGION_F_SINGLE_REF Pavel Begunkov
2024-11-20 23:33 ` [PATCH 10/11] io_uring/memmap: implement kernel allocated regions Pavel Begunkov
2024-11-20 23:33 ` [PATCH 11/11] io_uring/memmap: implement mmap for regions Pavel Begunkov
2024-11-21 1:28 ` Jens Axboe [this message]
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