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Since we are going to make `Mutex<T>` structurally pin the data (i.e. `T`), therefore `.lock()` function only returns a `Guard` that can dereference a mutable reference to `T` if only `T` is `Unpin`, therefore restrict the impl `Reader` block of `Mutex<T>` to that. Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://patch.msgid.link/20251022034237.70431-1-boqun.feng@gmail.com
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.