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31daa8261c
We use EXT4_BAD_INO for the buddy cache inode number. This inode is not accessed via __ext4_new_inode() or __ext4_iget(), meaning ext4_set_inode_mapping_order() is not called to set its folio order range. However, future block size greater than page size support requires this inode to support large folios, and the buddy cache code already handles BS > PS. Therefore, ext4_set_inode_mapping_order() is now explicitly called for this specific inode to set its folio order range. Signed-off-by: Baokun Li <libaokun1@huawei.com> Reviewed-by: Zhang Yi <yi.zhang@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com> Message-ID: <20251121090654.631996-15-libaokun@huaweicloud.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> |
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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.