ab4c54c643
Currently if full_stripe_write() failed to allocate the pages for parity, it will call __free_raid_bio() first, then return -ENOMEM. But some caller of full_stripe_write() will also call __free_raid_bio() again, this would cause double freeing. And it's not a logically sound either, normally we should either free the memory at the same level where we allocated it, or let endio to handle everything. So this patch will solve the double freeing by make raid56_parity_write() to handle the error and free the rbio. Just like what we do in raid56_parity_recover(). 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.