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| author | Jason Gunthorpe <jgg@nvidia.com> | 2023-01-23 21:35:58 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-01-25 11:52:04 +0100 |
| commit | e787a38e31e57c35682d363e71891956d804f7e3 (patch) | |
| tree | 5d9e079706d7a8423d0e40ab853fb2e8c8480ace /drivers/iommu/intel/iommu.h | |
| parent | iommu/dma: Use the gfp parameter in __iommu_dma_alloc_noncontiguous() (diff) | |
| download | linux-e787a38e31e57c35682d363e71891956d804f7e3.tar.xz linux-e787a38e31e57c35682d363e71891956d804f7e3.zip | |
iommufd: Use GFP_KERNEL_ACCOUNT for iommu_map()
iommufd follows the same design as KVM and uses memory cgroups to limit
the amount of kernel memory a iommufd file descriptor can pin down. The
various internal data structures already use GFP_KERNEL_ACCOUNT.
However, one of the biggest consumers of kernel memory is the IOPTEs
stored under the iommu_domain. Many drivers will allocate these at
iommu_map() time and will trivially do the right thing if we pass in
GFP_KERNEL_ACCOUNT.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/5-v3-76b587fe28df+6e3-iommu_map_gfp_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel/iommu.h')
0 files changed, 0 insertions, 0 deletions