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[ Upstream commit66bcfcdf89] When the seqcount_LOCKNAME_t group of data types were introduced, two classes of seqlock.h sequence counter macros were added: - An external public API which can either take a plain seqcount_t or any of the seqcount_LOCKNAME_t variants. - An internal API which takes only a plain seqcount_t. To distinguish between the two groups, the "*_seqcount_t_*" pattern was used for the latter. This confused a number of mm/ call-site developers, and Linus also commented that it was not a standard practice for marking seqlock.h internal APIs. Distinguish the latter group of macros by prefixing a "do_". Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/CAHk-=wikhGExmprXgaW+MVXG1zsGpztBbVwOb23vetk41EtTBQ@mail.gmail.com Stable-dep-of:41b43b6c6e("locking/seqlock: Do the lockdep annotation before locking in do_write_seqcount_begin_nested()") Signed-off-by: Sasha Levin <sashal@kernel.org>
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 Restructured Text 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.