diff options
| author | Aneesh Kumar K.V <[email protected]> | 2019-03-05 15:47:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-03-05 21:07:19 -0800 |
| commit | 7f18825174203526a47c127c12a50f897ee0b511 (patch) | |
| tree | 72060bf12af835b3e874ea03f507a67df29722c6 /tools/perf/util/c++/clang.cpp | |
| parent | 678e174c4c16a940ecfd94e52b7bad73062507f0 (diff) | |
powerpc/mm/iommu: allow large IOMMU page size only for hugetlb backing
THP pages can get split during different code paths. An incremented
reference count does imply we will not split the compound page. But the
pmd entry can be converted to level 4 pte entries. Keep the code
simpler by allowing large IOMMU page size only if the guest ram is
backed by hugetlb pages.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Aneesh Kumar K.V <[email protected]>
Cc: Alexey Kardashevskiy <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: David Gibson <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Mel Gorman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/util/c++/clang.cpp')
0 files changed, 0 insertions, 0 deletions