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| author |   Ming Lei <ming.lei@redhat.com> | 2018-03-13 17:42:39 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-03-14 23:31:13 -0400 |
| commit | 8b834bff1b73dce46f4e9f5e84af6f73fed8b0ef (patch) | |
| tree | 8eb55c8bed7a25767bed13dbaaa4b9021e79f83a /drivers/scsi/megaraid/megaraid_sas_base.c | |
| parent | scsi: qla2xxx: Remove FC_NO_LOOP_ID for FCP and FC-NVMe Discovery (diff) | |
| download | linux-dev-8b834bff1b73dce46f4e9f5e84af6f73fed8b0ef.tar.xz linux-dev-8b834bff1b73dce46f4e9f5e84af6f73fed8b0ef.zip | |
scsi: hpsa: fix selection of reply queue
Since commit 84676c1f21e8 ("genirq/affinity: assign vectors to all
possible CPUs") we could end up with an MSI-X vector that did not have
any online CPUs mapped. This would lead to I/O hangs since there was no
CPU to receive the completion.
Retrieve IRQ affinity information using pci_irq_get_affinity() and use
this mapping to choose a reply queue.
[mkp: tweaked commit desc]
Cc: Hannes Reinecke <hare@suse.de>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>,
Cc: James Bottomley <james.bottomley@hansenpartnership.com>,
Cc: Christoph Hellwig <hch@lst.de>,
Cc: Don Brace <don.brace@microsemi.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Meelis Roos <mroos@linux.ee>
Cc: Artem Bityutskiy <artem.bityutskiy@intel.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Fixes: 84676c1f21e8 ("genirq/affinity: assign vectors to all possible CPUs")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Tested-by: Laurence Oberman <loberman@redhat.com>
Tested-by: Don Brace <don.brace@microsemi.com>
Tested-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
Acked-by: Don Brace <don.brace@microsemi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions