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abfdccd6af
A common pattern seen when wake_qs are used to defer a wakeup until after a lock is released is something like: preempt_disable(); raw_spin_unlock(lock); wake_up_q(wake_q); preempt_enable(); So create some raw_spin_unlock*_wake() helper functions to clean this up. Applies on top of the fix I submitted here: https://lore.kernel.org/lkml/20241212222138.2400498-1-jstultz@google.com/ NOTE: I recognise the unlock()/unlock_irq()/unlock_irqrestore() variants creates its own duplication, which we could use a macro to generate the similar functions, but I often dislike how those generation macros making finding the actual implementation harder, so I left the three functions as is. If folks would prefer otherwise, let me know and I'll switch it. Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: John Stultz <jstultz@google.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20241217040803.243420-1-jstultz@google.com |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.