Re: [PATCH v4 18/25] gup: Don't allow FOLL_LONGTERM pinning of FS DAX pages

On 17.12.24 06:13, Alistair Popple wrote: Longterm pinning of FS DAX pages should already be disallowed by various pXX_devmap checks. However a future change will cause these checks to be invalid for FS DAX pages so make folio_is_longterm_pinnable() return false for FS DAX pages. Nit: I'd consi

[PATCH v4 18/25] gup: Don't allow FOLL_LONGTERM pinning of FS DAX pages

Longterm pinning of FS DAX pages should already be disallowed by various pXX_devmap checks. However a future change will cause these checks to be invalid for FS DAX pages so make folio_is_longterm_pinnable() return false for FS DAX pages. Signed-off-by: Alistair Popple Reviewed-by: John Hubbard