linux-kernel - Re: [PATCH v1 4/7] rust: workqueue: define built-in queues

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Date:   Fri, 02 Jun 2023 12:23:21 +0200
From:   "Andreas Hindborg (Samsung)" <nmi@...aspace.dk>
To:     Alice Ryhl <aliceryhl@...gle.com>
Cc:     alex.gaynor@...il.com, benno.lossin@...ton.me,
        bjorn3_gh@...tonmail.com, boqun.feng@...il.com, gary@...yguo.net,
        jiangshanlai@...il.com, linux-kernel@...r.kernel.org,
        ojeda@...nel.org, patches@...ts.linux.dev,
        rust-for-linux@...r.kernel.org, tj@...nel.org, wedsonaf@...il.com
Subject: Re: [PATCH v1 4/7] rust: workqueue: define built-in queues


Alice Ryhl <aliceryhl@...gle.com> writes:

> Andreas Hindborg <nmi@...aspace.dk> writes:
>> Alice Ryhl <aliceryhl@...gle.com> writes:
>>> +/// Returns the system freezable work queue (`system_freezable_wq`).
>>> +///
>>> +/// It is equivalent to the one returned by [`system`] except that it's freezable.
>> 
>> Can we add a short definition of what "freezable" means?
>
> I don't know what it means, but I would be happy to add an explanation
> if you have one.

>From https://docs.kernel.org/core-api/workqueue.html:

"A freezable wq participates in the freeze phase of the system suspend
operations. Work items on the wq are drained and no new work item starts
execution until thawed."

BR Andreas