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59ebc33201
Rename qd_check_sync() to qd_grab_sync() and make it return a bool. Turn the sync_gen pointer into a regular u64 and pass in U64_MAX instead of a NULL pointer when sync generation checking isn't needed. Introduce a new qd_ungrab_sync() helper for undoing the effects of qd_grab_sync() if the subsequent bh_get() on the qd object fails. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.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.