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d30b236a3e
We are logging tree mod log operations for extent buffers from any tree but we only need to log for the extent tree and subvolume tree, since the tree mod log is used to get a consistent view, within a transaction, of extents and their backrefs. So it's pointless to log operations for trees such as the csum tree, free space tree, root tree, chunk tree, log trees, data relocation tree, etc, as these trees are not used for backref walking and all tree mod log users are about backref walking. So skip extent buffers that don't belong neither to the extent nor to subvolume trees. This avoids unnecessary memory allocations and having a larger tree mod log rbtree with nodes that are never needed. Reviewed-by: Boris Burkov <boris@bur.io> Signed-off-by: Filipe Manana <fdmanana@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.