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4f93b426ab
So far lower could not be a meta inode. So whenever it was time to copy up data of a meta inode, we could copy it up from top most lower dentry. But now lower itself can be a metacopy inode. That means data copy up needs to take place from a data inode in metacopy inode chain. Find lower data inode in the chain and use that for data copy up. Introduced a helper called ovl_path_lowerdata() to find the lower data inode chain. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.