04ae851874
[ Upstream commit 8312cd3a7b835ae3033a679e5f0014a40e7891c5 ] The megaraid SCSI driver sets set->nr_maps as 3 if poll_queues is > 0, and blk-mq actually initializes each map's nr_queues as nr_hw_queues. Consequently the driver has to clear READ queue map's nr_queues, otherwise the queue map becomes broken if poll_queues is set as non-zero. Link: https://lore.kernel.org/r/20220706125942.528533-1-ming.lei@redhat.com Fixes: 9e4bec5b2a23 ("scsi: megaraid_sas: mq_poll support") Cc: Kashyap Desai <kashyap.desai@broadcom.com> Cc: sumit.saxena@broadcom.com Cc: chandrakanth.patil@broadcom.com Cc: linux-block@vger.kernel.org Cc: Hannes Reinecke <hare@suse.de> Reported-by: Guangwu Zhang <guazhang@redhat.com> Tested-by: Guangwu Zhang <guazhang@redhat.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.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 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.