9ae53bf909
Currently scrub_raid56_parity() has a large double loop, handling the following things at the same time: - Iterate each data stripe - Iterate each extent item in one data stripe Refactor this by: - Introduce a new helper to handle data stripe iteration The new helper is scrub_raid56_data_stripe_for_parity(), which only has one while() loop handling the extent items inside the data stripe. The code is still mostly the same as the old code. - Call cond_resched() for each extent Previously we only call cond_resched() under a complex if () check. I see no special reason to do that, and for other scrub functions, like scrub_simple_mirror() we're already doing the same cond_resched() after scrubbing one extent. - Add more comments Please note that, this patch is only to address the double loop, there are incoming patches to do extra cleanup. 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 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.