I'm recently looking at the possibility of mapping PCIe large bars to use huge mappings (just like thp or hugetlb). Then I noticed these only when reading the code. I don't think I'm familiar enough with the whole PAT system, however I figured I should post them out to collect some comments, hencing marking this small series as RFC. Please feel free to have a look at each of them; I've put more words in the commit message than here, as the two issues are not related. Any comments are welcomed. Thanks, Peter Xu (2): mm/x86/pat: Only untrack the pfn range if unmap region mm/x86/pat: Do proper PAT bit shift for large mappings mm/huge_memory.c | 4 ++-- mm/memory.c | 5 ++--- 2 files changed, 4 insertions(+), 5 deletions(-) -- 2.45.0
