Re: [PATCH v10 24/25] x86/mm: add speculative pagefault handling

Laurent Dufour writes: > On 30/04/2018 20:43, Punit Agrawal wrote: >> Hi Laurent, >> >> I am looking to add support for speculative page fault handling to >> arm64 (effectively porting this patch) and had a few questions. >> Apologies if I've missed an obvious

Re: [PATCH v10 24/25] x86/mm: add speculative pagefault handling

On 30/04/2018 20:43, Punit Agrawal wrote: > Hi Laurent, > > I am looking to add support for speculative page fault handling to > arm64 (effectively porting this patch) and had a few questions. > Apologies if I've missed an obvious explanation for my queries. I'm > jumping in bit late to the

Re: [PATCH v10 24/25] x86/mm: add speculative pagefault handling

Hi Laurent, I am looking to add support for speculative page fault handling to arm64 (effectively porting this patch) and had a few questions. Apologies if I've missed an obvious explanation for my queries. I'm jumping in bit late to the discussion. On Tue, Apr 17, 2018 at 3:33 PM, Laurent

[PATCH v10 24/25] x86/mm: add speculative pagefault handling

From: Peter Zijlstra Try a speculative fault before acquiring mmap_sem, if it returns with VM_FAULT_RETRY continue with the mmap_sem acquisition and do the traditional fault. Signed-off-by: Peter Zijlstra (Intel) [Clearing of FAULT_FLAG_ALLOW_RETRY