From: Christoph Hellwig Date: Wed, 15 Apr 2015 16:44:37 +0000 (-0700) Subject: megaraid_sas: use raw_smp_processor_id() X-Git-Tag: v3.4.109~98 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b7cecd38cf317ef27a698a2c5ab876f9f01ca290;p=thirdparty%2Fkernel%2Fstable.git megaraid_sas: use raw_smp_processor_id() commit 16b8528d20607925899b1df93bfd8fbab98d267c upstream. We only want to steer the I/O completion towards a queue, but don't actually access any per-CPU data, so the raw_ version is fine to use and avoids the warnings when using smp_processor_id(). Signed-off-by: Christoph Hellwig Reported-by: Andy Lutomirski Tested-by: Andy Lutomirski Acked-by: Sumit Saxena Signed-off-by: James Bottomley [lizf: Backported to 3.4: drop the changes to megasas_build_dcdb_fusion()] Signed-off-by: Zefan Li --- diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index bfd87fab39aa7..3e0f71c155a30 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -1426,11 +1426,11 @@ megasas_build_ldio_fusion(struct megasas_instance *instance, fp_possible = io_info.fpOkForIo; } - /* Use smp_processor_id() for now until cmd->request->cpu is CPU + /* Use raw_smp_processor_id() for now until cmd->request->cpu is CPU id by default, not CPU group id, otherwise all MSI-X queues won't be utilized */ cmd->request_desc->SCSIIO.MSIxIndex = instance->msix_vectors ? - smp_processor_id() % instance->msix_vectors : 0; + raw_smp_processor_id() % instance->msix_vectors : 0; if (fp_possible) { megasas_set_pd_lba(io_request, scp->cmd_len, &io_info, scp,