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f31ea0888c
When relocating data block groups with tons of small extents, or large metadata block groups, there can be over 200,000 extents. We will iterate all extents of such block group in relocate_block_group(), where iteration itself can be kinda time-consuming. So when user want to cancel the balance, the extent iteration loop can be another target. This patch will add the cancelling check in the extent iteration loop of relocate_block_group() to make balance cancelling faster. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@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 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.