ck_t *ptl;
> +#else
> + spinlock_t ptl;
> +#endif
> + };
> + unsigned int __page_type;
> + atomic_t _refcount;
> +#ifdef CONFIG_MEMCG
> + unsigned long pt_memcg_data;
> +#endif
> +};
--
Peter Xu
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Ren
Acked-by: Max Filippov
Acked-by: Christian Borntraeger
Acked-by: Michael Ellerman (powerpc)
Acked-by: Catalin Marinas
Reviewed-by: Alistair Popple
Reviewed-by: Ingo Molnar
Signed-off-by: Peter Xu
---
v5:
- Picked up a few more a-bs
- For s390, further optimize gmap==NULL case [Heiko]
On Mon, May 30, 2022 at 07:03:31PM +0200, Heiko Carstens wrote:
> On Mon, May 30, 2022 at 12:00:52PM -0400, Peter Xu wrote:
> > On Mon, May 30, 2022 at 11:52:54AM -0400, Peter Xu wrote:
> > > On Mon, May 30, 2022 at 11:35:10AM +0200, Christian Borntraeger wrote:
> > > &g
On Mon, May 30, 2022 at 11:52:54AM -0400, Peter Xu wrote:
> On Mon, May 30, 2022 at 11:35:10AM +0200, Christian Borntraeger wrote:
> >
> >
> > Am 29.05.22 um 22:33 schrieb Heiko Carstens:
> > [...]
> > >
> > > Guess the patch below on top
mmap_read_lock(mm);
> > + goto out_gmap;
> > + }
> > + goto out;
>
> Yes, that makes sense. With that
>
> Acked-by: Christian Borntraeger
Looks sane, thanks Heiko, Christian. I'll cook another one.
--
Peter Xu
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Acked-by: Max Filippov
Reviewed-by: Alistair Popple
Reviewed-by: Ingo Molnar
Signed-off-by: Peter Xu
---
v4:
- Picked up a-bs and r-bs
- Fix grammar in the comment of faultin_page() [Ingo]
- Fix s390 for gmap since gmap needs the mmap lock [Heiko]
v3:
- Rebase to akpm/mm-unstable
- Copy ar
On Fri, May 27, 2022 at 12:46:31PM +0200, Ingo Molnar wrote:
>
> * Peter Xu wrote:
>
> > This patch provides a ~12% perf boost on my aarch64 test VM with a simple
> > program sequentially dirtying 400MB shmem file being mmap()ed and these are
> > the time it needs:
&
Hi, Heiko,
On Fri, May 27, 2022 at 02:23:42PM +0200, Heiko Carstens wrote:
> On Tue, May 24, 2022 at 07:45:31PM -0400, Peter Xu wrote:
> > I observed that for each of the shared file-backed page faults, we're very
> > likely to retry one more time for the 1st write fault
citly didn't touch hmm_vma_fault() and break_ksm() because they do
not handle VM_FAULT_RETRY even with existing code, so I'm literally keeping
them as-is.
Signed-off-by: Peter Xu
---
v3:
- Rebase to akpm/mm-unstable
- Copy arch maintainers
---
arch/alpha/mm/fault.c | 4 +
