powerc/mm: try VMA lock-based page fault handling first

Attempt VMA lock-based page fault handling first, and fall back to the
existing mmap_lock-based handling if that fails.  Copied from "x86/mm: try
VMA lock-based page fault handling first"

[[email protected]: powerpc/mm: fix mmap_lock bad unlock]
  Link: https://lkml.kernel.org/r/[email protected]
  Link: https://lore.kernel.org/linux-mm/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Laurent Dufour <[email protected]>
Signed-off-by: Suren Baghdasaryan <[email protected]>
Cc: Sachin Sant <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions