Re: [PATCH v3 hmm 03/11] mm/mmu_notifiers: add a get/put scheme for the registration

On Wed, Aug 14, 2019 at 02:20:31PM -0700, Ralph Campbell wrote: > > On 8/6/19 4:15 PM, Jason Gunthorpe wrote: > > From: Jason Gunthorpe > > > > Many places in the kernel have a flow where userspace will create some > > object and that object will need to connect to the subsystem's > > mmu_notifi

Re: [PATCH v3 hmm 03/11] mm/mmu_notifiers: add a get/put scheme for the registration

On 8/6/19 4:15 PM, Jason Gunthorpe wrote: From: Jason Gunthorpe Many places in the kernel have a flow where userspace will create some object and that object will need to connect to the subsystem's mmu_notifier subscription for the duration of its lifetime. In this case the subsystem is usual

[PATCH v3 hmm 03/11] mm/mmu_notifiers: add a get/put scheme for the registration

From: Jason Gunthorpe Many places in the kernel have a flow where userspace will create some object and that object will need to connect to the subsystem's mmu_notifier subscription for the duration of its lifetime. In this case the subsystem is usually tracking multiple mm_structs and it is dif