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60aac486da
Convert to use folios throughout. This is in preparation for the removal for find_get_pages_contig(). Now also supports large folios. The initial version of this function set the page_address to be returned after finishing all the checks. Since folio_batches have a maximum of 15 folios, the function had to be modified to support getting and checking up to lpages, 15 pages at a time while still returning the initial page address. Now the function sets ret as soon as the first batch arrives, and updates it only if a check fails. The physical adjacency check utilizes the page frame numbers. The page frame number of each folio must be nr_pages away from the first folio. Link: https://lkml.kernel.org/r/20220824004023.77310-7-vishal.moola@gmail.com Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Chris Mason <clm@fb.com> Cc: David Sterba <dsterba@suse.com> Cc: David Sterba <dsterb@suse.com> Cc: Josef Bacik <josef@toxicpanda.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Ryusuke Konishi <konishi.ryusuke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.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.