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0d06b4eca6
When we find an extent past an inode's i_size, we need to do the deletion in the inode's snapshot (which will emit a whiteout if necessary); and we also need to note that we now have an a key at that position and snapshot, so that we don't go into an infinite loop. Also, switch to walking inodes in reverse older, oldest snapshot to newest, so that we emit the fewest whiteouts possible. Signed-off-by: Kent Overstreet <kent.overstreet@gmail.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.
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.