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16d80c54ad
Now that we have alloc_size that controls our discard behavior, it doesn't make sense to have these set to object (set) size. alloc_size defaults to 64k, but because discard_granularity is likely 4M, only ranges that are equal to or bigger than 4M can be considered during fstrim. A smaller io_min is also more likely to be met, resulting in fewer deferred writes on bluestore OSDs. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Jason Dillaman <dillaman@redhat.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.