On Fri, 4 Aug 2023 08:27:19 -0700 Suren Baghdasaryan <surenb@xxxxxxxxxx> wrote: > walk_page_range() and friends often operate under write-locked mmap_lock. > With introduction of vma locks, the vmas have to be locked as well > during such walks to prevent concurrent page faults in these areas. > Add an additional member to mm_walk_ops to indicate locking requirements > for the walk. > > ... > > 18 files changed, 100 insertions(+), 20 deletions(-) > That's a big patch for a -stable backport. Presumably the various -stable maintainers will be wondering why we're doing this. But, as is so often the case, the changelog fails to describe any user-visible effects of the change. Please send this info and I'll add it to the changelog.