arm64: mm: Permit transitioning from Global to Non-Global without BBM

Commit 4e60205655 upstream.

Break-before-make is not needed when transitioning from Global to
Non-Global mappings, provided that the contiguous hint is not being used.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Will Deacon 2018-01-29 11:59:54 +00:00 • committed by Greg Kroah-Hartman
commit 1e41ebd20f