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7f91c6a78a
Currently inside prepare_pages(), we handle the leading and tailing page differently, and skip the middle pages (if any). This is to avoid reading pages which are fully covered by the dirty range. Refactor the code by moving all checks (alignment check, range check, force read check) into prepare_uptodate_page(). So that prepare_pages() only needs to iterate all the pages unconditionally. And since we're here, also update prepare_uptodate_page() to use folio API other than the old page API. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.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.