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85d8cf161f
In BTREE_ITER_FILTER_SNAPHOTS mode, we skip over keys in unrelated snapshots. When we hit the end of an inode, if the next inode(s) are in a different subvolume, we could potentially have to skip past many keys before finding a key we can return to the caller, so they can terminate the iteration. This adds a peek_upto() variant to solve this problem, to be used when we know the range we're searching within. 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.