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4ba99dde33
Add a flag for tracking whether a directory has case-insensitive descendents - so that overlayfs can disallow mounting, even though the filesystem supports case insensitivity. This is a new on disk format version, with a (cheap) upgrade to ensure the flag is correctly set on existing inodes. Create, rename and fssetxattr are all plumbed to ensure the new flag is set, and we've got new fsck code that hooks into check_inode(0. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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.