Re: switch the remaining architectures to use generic GUP v3
On Tue, Jun 11, 2019 at 04:40:46PM +0200, Christoph Hellwig wrote: > Hi Linus and maintainers, > > below is a series to switch mips, sh and sparc64 to use the generic > GUP code so that we only have one codebase to touch for further > improvements to this code. I don't have hardware for any of these > architectures, and generally no clue about their page table > management, so handle with care. I like this series, ther are alot of people talking about work for GUP and this will make any of that so much easier to do. Jason
Re: switch the remaining architectures to use generic GUP v3
I just noticed I didn't have Andrew explicitly on the receipents list, so adding him. Is everyone happy enough to give this a spin in -mm and linux-next?
switch the remaining architectures to use generic GUP v3
Hi Linus and maintainers, below is a series to switch mips, sh and sparc64 to use the generic GUP code so that we only have one codebase to touch for further improvements to this code. I don't have hardware for any of these architectures, and generally no clue about their page table management, so handle with care. Changes since v2: - rebase to mainline to pick up the untagged_addr definition - fix the gup range check to be start <= end to catch the 0 length case - use pfn based version for the missing pud_page/pgd_page definitions - fix a wrong check in the sparc64 version of pte_access_permitted Changes since v1: - fix various issues found by the build bot - cherry pick and use the untagged_addr helper form Andrey - add various refactoring patches to share more code over architectures - move the powerpc hugepd code to mm/gup.c and sync it with the generic hup semantics
