Re: [PATCH 12/12] mm: Remove devmap related functions and page table bits

2024-09-12 Thread kernel test robot
: 6f1833b8208c3b9e59eff10792667b6639365146 patch link: https://lore.kernel.org/r/39b1a78aa16ebe5db1c4b723e44fbdd217d302ac.1725941415.git-series.apopple%40nvidia.com patch subject: [PATCH 12/12] mm: Remove devmap related functions and page table bits config: powerpc-allmodconfig (https://download.01.org/0day

Re: [PATCH 12/12] mm: Remove devmap related functions and page table bits

2024-09-11 Thread Chunyan Zhang
Hi Alistair, On Tue, 10 Sept 2024 at 12:21, Alistair Popple wrote: > > Now that DAX and all other reference counts to ZONE_DEVICE pages are > managed normally there is no need for the special devmap PTE/PMD/PUD > page table bits. So drop all references to these, freeing up a > software defined pa

[PATCH 12/12] mm: Remove devmap related functions and page table bits

2024-09-09 Thread Alistair Popple
Now that DAX and all other reference counts to ZONE_DEVICE pages are managed normally there is no need for the special devmap PTE/PMD/PUD page table bits. So drop all references to these, freeing up a software defined page table bit on architectures supporting it. Signed-off-by: Alistair Popple A