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8f7747ad8c
xfs_bmap_btalloc_filestreams() calls two filestreams functions to select the AG to allocate from. Both those functions end up in the same selection function that iterates all AGs multiple times. Worst case, xfs_bmap_btalloc_filestreams() can iterate all AGs 4 times just to select the initial AG to allocate in. Move the AG selection to fs/xfs/xfs_filestreams.c as a single interface so that the inefficient AG interation is contained entirely within the filestreams code. This will allow the implementation to be simplified and made more efficient in future patches. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org>
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.