Christoph Hellwig
6b9ebcbd31
commit1b0cab327eupstream. req_get_ioprio looks at req->bio to find the I/O priority, which is not set when completing bios that the driver fully iterated through. Stash away the dd_per_prio in the elevator private data instead of looking it up again to optimize the code a bit while fixing the regression from removing the per-request ioprio value. Fixes:6975c1a486("block: remove the ioprio field from struct request") Reported-by: Chris Bainbridge <chris.bainbridge@gmail.com> Reported-by: Sam Protsenko <semen.protsenko@linaro.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Chris Bainbridge <chris.bainbridge@gmail.com> Tested-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Link: https://lore.kernel.org/r/20241126102136.619067-1-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 reStructuredText 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.