linux-kernel - Re: [PATCH v6 0/5] io_uring: remove ring quiesce in io_uring

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Date:   Fri, 04 Feb 2022 09:19:24 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     io-uring@...r.kernel.org, asml.silence@...il.com,
        linux-kernel@...r.kernel.org, Usama Arif <usama.arif@...edance.com>
Cc:     fam.zheng@...edance.com
Subject: Re: [PATCH v6 0/5] io_uring: remove ring quiesce in io_uring_register

On Fri, 4 Feb 2022 14:51:12 +0000, Usama Arif wrote:
> Ring quiesce is currently used for registering/unregistering eventfds,
> registering restrictions and enabling rings.
> 
> For opcodes relating to registering/unregistering eventfds, ring quiesce
> can be avoided by creating a new RCU data structure (io_ev_fd) as part
> of io_ring_ctx that holds the eventfd_ctx, with reads to the structure
> protected by rcu_read_lock and writes (register/unregister calls)
> protected by a mutex.
> 
> [...]

Applied, thanks!

[1/5] io_uring: remove trace for eventfd
      commit: 054f8098d98be4c53ef317e9dd745bb5759f61d9
[2/5] io_uring: avoid ring quiesce while registering/unregistering eventfd
      commit: b77e315a96445e5f19a83546c73d2abbcedfa5db
[3/5] io_uring: avoid ring quiesce while registering async eventfd
      commit: 13bcfd43fd0ef5e0de306e6ffb566970499b6888
[4/5] io_uring: avoid ring quiesce while registering restrictions and enabling rings
      commit: 1769f1468f4697409ee44f494940b5381acc1bae
[5/5] io_uring: remove ring quiesce for io_uring_register
      commit: 971d72eb476604fc91a8e82f0421e6f599f9c300

Best regards,
-- 
Jens Axboe