Re: [PATCH v3 hmm 01/11] mm/mmu_notifiers: hoist do_mmu_notifier_register down_write to the caller

2019-08-14 Thread Ralph Campbell
On 8/6/19 4:15 PM, Jason Gunthorpe wrote: From: Jason Gunthorpe This simplifies the code to not have so many one line functions and extra logic. __mmu_notifier_register() simply becomes the entry point to register the notifier, and the other one calls it under lock. Also add a lockdep_assert

[PATCH v3 hmm 01/11] mm/mmu_notifiers: hoist do_mmu_notifier_register down_write to the caller

2019-08-07 Thread Jason Gunthorpe
From: Jason Gunthorpe This simplifies the code to not have so many one line functions and extra logic. __mmu_notifier_register() simply becomes the entry point to register the notifier, and the other one calls it under lock. Also add a lockdep_assert to check that the callers are holding the