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The calculation of block from index doesn't work for devices with a block size larger than PAGE_SIZE as we end up shifting by a negative number. Instead, calculate the number of the first block from the folio's position in the block device. We no longer need to pass sizebits to grow_dev_folio(). Link: https://lkml.kernel.org/r/20231109210608.2252323-3-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Pankaj Raghav <p.raghav@samsung.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Luis Chamberlain <mcgrof@kernel.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.