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7769e18c20
For each storvsc_device, storvsc keeps track of the channel target CPUs associated to the device (alloced_cpus) and it uses this information to fill a "cache" (stor_chns) mapping CPU->channel according to a certain heuristic. Update the alloced_cpus mask and the stor_chns array when a channel of the storvsc device is re-assigned to a different CPU. Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Cc: "James E.J. Bottomley" <jejb@linux.ibm.com> Cc: "Martin K. Petersen" <martin.petersen@oracle.com> Cc: <linux-scsi@vger.kernel.org> Link: https://lore.kernel.org/r/20200406001514.19876-12-parri.andrea@gmail.com Reviewed-by; Long Li <longli@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> [ wei: fix a small issue reported by kbuild test robot <lkp@intel.com> ] Signed-off-by: Wei Liu <wei.liu@kernel.org> |
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