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3 Commits

Author SHA1 Message Date
Christoph Hellwig d8c20af008 blk-mq-pci: add a fallback when pci_irq_get_affinity returns NULL 
commit c005390374957baacbc38eef96ea360559510aa7 upstream.

While pci_irq_get_affinity should never fail for SMP kernel that
implement the affinity mapping, it will always return NULL in the
UP case, so provide a fallback mapping of all queues to CPU 0 in
that case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-08-24 17:12:20 -07:00
Stephen Rothwell 8ec2ef2b66 blk_mq: linux/blk-mq.h does not include all the headers it depends on 
and building block/blk-mq-pci.o should depend on CONFIG_BLOCK

Fixes: 973c4e372c ("blk-mq: provide a default queue mapping for PCI device")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
 2016-09-19 08:21:51 -06:00
Christoph Hellwig 973c4e372c blk-mq: provide a default queue mapping for PCI device 
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
 2016-09-15 08:42:03 -06:00