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 <jgg@xxxxxxxxxxxx> > > > > 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 difficult to keep track of what struct mmu_notifier's have been > > allocated for what mm's. > > > > Since this has been open coded in a variety of exciting ways, provide core > > functionality to do this safely. > > > > This approach uses the strct mmu_notifier_ops * as a key to determine if > > s/strct/struct Yes, thanks for all of this, I like having comments, but I'm a terrible proofreader :( Jason
