On Thu, 30 Nov 2023, Pasha Tatashin wrote: > Add NR_IOMMU_PAGES into node_stat_item that counts number of pages > that are allocated by the IOMMU subsystem. > > The allocations can be view per-node via: > /sys/devices/system/node/nodeN/vmstat. > > For example: > > $ grep iommu /sys/devices/system/node/node*/vmstat > /sys/devices/system/node/node0/vmstat:nr_iommu_pages 106025 > /sys/devices/system/node/node1/vmstat:nr_iommu_pages 3464 > > The value is in page-count, therefore, in the above example > the iommu allocations amount to ~428M. > > Signed-off-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx> Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
