Re: [PATCH v6 11/26] mm: Allow compound zone device pages

2025-01-16 Thread Alistair Popple
On Tue, Jan 14, 2025 at 03:59:31PM +0100, David Hildenbrand wrote: > On 10.01.25 07:00, Alistair Popple wrote: > > Zone device pages are used to represent various type of device memory > > managed by device drivers. Currently compound zone device pages are > > not supported. This is because MEMORY_

Re: [PATCH v6 11/26] mm: Allow compound zone device pages

2025-01-14 Thread David Hildenbrand
On 10.01.25 07:00, Alistair Popple wrote: Zone device pages are used to represent various type of device memory managed by device drivers. Currently compound zone device pages are not supported. This is because MEMORY_DEVICE_FS_DAX pages are the only user of higher order zone device pages and hav

[PATCH v6 11/26] mm: Allow compound zone device pages

2025-01-09 Thread Alistair Popple
Zone device pages are used to represent various type of device memory managed by device drivers. Currently compound zone device pages are not supported. This is because MEMORY_DEVICE_FS_DAX pages are the only user of higher order zone device pages and have their own page reference counting. A futu