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c87c299776
Currently the btrfs_buffered_write() is preparing multiple page a time, allowing a better performance. But the current trend is to support larger folio as an optimization, instead of implementing own multi-page optimization. This is inspired by generic_perform_write(), which is copying one folio a time. Such change will prepare us to migrate to implement the write_begin() and write_end() callbacks, and make every involved function a little easier. Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.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 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.