Re: [RFC PATCH v2 1/3] mm/gup: fix gup_fast with dynamic page table folding
From: peterz@infradead.org
Date: 2020-09-11 07:11:22
Also in:
linux-arch, linux-arm-kernel, linux-mm, linux-s390, linux-um, lkml, sparclinux
On Thu, Sep 10, 2020 at 06:59:21PM -0300, Jason Gunthorpe wrote:
So, I suggest pXX_offset_unlocked()
Urgh, no. Elsewhere in gup _unlocked() means it will take the lock itself (get_user_pages_unlocked()) -- although often it seems to mean the lock is already held (git grep _unlocked and marvel). What we want is _lockless().