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Some but not all .ra_pages changes happen while block layer I/O is paused with blk_mq_freeze_queue(). Filesystems may read .ra_pages even while block layer I/O is paused, e.g. from inside their .fadvise callback. Annotating all .ra_pages reads with READ_ONCE() would be cumbersome. Hence, add the __data_racy annotatation to the .ra_pages member variable. Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Christian Brauner <brauner@kernel.org> Cc: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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.