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9c5ff9b42c
This refactor includes the following behavior change first: - Don't error out if only P/Q is corrupted The old code will directly error out if only P/Q is corrupted. Although it is an logical error if we go into rebuild path with only P/Q corrupted, there is no need to error out. Just skip the rebuild and return the already good data. Then comes the following refactor which shouldn't cause behavior changes: - Introduce a helper to do vertical stripe recovery This not only reduce one indent level, but also paves the road for later data checksum verification in RMW cycles. - Sort rbio->faila/b before recovery So we don't need to do the same swap every vertical stripe - Replace a BUG_ON() with ASSERT() Or checkpatch won't let me pass. - Mark recovered sectors uptodate after the recover loop - Do the cleanup for pointers unconditionally We only need to initialize @pointers and @unmap_array to NULL, so we can safely free them unconditionally. - Mark the repaired sector uptodate in recover_vertical() 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.