| Message ID | 20220708071802.751003711@infradead.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | munmap() vs unmap_mapping_range() | expand |
On Fri, Jul 08, 2022 at 09:18:02AM +0200, Peter Zijlstra wrote: > Hi, > > These 4 patches implement the suggestion by Linus. > > The first patch nukes all architecture implementations of tlb_{start,end}_vma() > by adding two additional MMU_GATHER config knobs. > > DaveM, please clarify the sparc64 case, it seems a little odd to have > flush_cache_range() but to explicitly not call it at unmap time. It would be > nice to remove this one special case. > > The second patch isn't strictly needed for this series but since I was looking > at all this, I figured C-SKY didn't make a whole lot of sense. Guo, please > have a look. > > The third patch cleans up the #ifdeffery and provides a single > tlb_{start,end}_vma() implementation for everyone. > > The fourth, and final, patch does the force TLB-flush on VM_PFNMAP thing. > > I've had the first three patches exposed to the robots and they've (so far) not > reported build (or other) fail. > What are we doing with these patches? Andrew will you pick them up, or will I smuggle them in x86/mm or something ?
On Thu, Jul 21, 2022 at 1:37 AM Peter Zijlstra <peterz@infradead.org> wrote: > > What are we doing with these patches? Andrew will you pick them up, or > will I smuggle them in x86/mm or something ? I'm picking up other random things right now anyway as people have emailed me, so I'll just do that with this series too. Linus
On Thu, Jul 21, 2022 at 10:46 AM Linus Torvalds <torvalds@linuxfoundation.org> wrote: > > I'm picking up other random things right now anyway as people have > emailed me, so I'll just do that with this series too. .. and I took the suggestion from Jann to make that last patch also check VM_MIXEDMAP in addition to VM_PFNMAP. Linus
Hi, These 4 patches implement the suggestion by Linus. The first patch nukes all architecture implementations of tlb_{start,end}_vma() by adding two additional MMU_GATHER config knobs. DaveM, please clarify the sparc64 case, it seems a little odd to have flush_cache_range() but to explicitly not call it at unmap time. It would be nice to remove this one special case. The second patch isn't strictly needed for this series but since I was looking at all this, I figured C-SKY didn't make a whole lot of sense. Guo, please have a look. The third patch cleans up the #ifdeffery and provides a single tlb_{start,end}_vma() implementation for everyone. The fourth, and final, patch does the force TLB-flush on VM_PFNMAP thing. I've had the first three patches exposed to the robots and they've (so far) not reported build (or other) fail.