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[ Upstream commit92fba084b7] In exfat_truncate(), the computation of inode->i_blocks is wrong if the file is larger than 4 GiB because a 32-bit variable is used as a mask. This is fixed and simplified by using round_up(). Also fix the same buggy computation in exfat_read_root() and another (correct) one in exfat_fill_inode(). The latter was fixed another way last month but can be simplified by using round_up() as well. See: commit0c336d6e33("exfat: fix incorrect loading of i_blocks for large files") Fixes:98d917047e("exfat: add file operations") Cc: stable@vger.kernel.org # v5.7+ Suggested-by: Matthew Wilcox <willy@infradead.org> Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com> Signed-off-by: Christophe Vu-Brugier <christophe.vu-brugier@seagate.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.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.