mm: add architecture primitives for software dirty bit clearing
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 22 Apr 2015 12:20:47 +0000 (14:20 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 14 Oct 2015 12:32:05 +0000 (14:32 +0200)
commita7b7617493179a0ff76cbc0cc2eb45ad07074765
tree3e0fdcfc4aa11a5eb0115e439163187eab446ac6
parent9d49f86daba3ed22cadf01beff1b130ad25fe0bf
mm: add architecture primitives for software dirty bit clearing

There are primitives to create and query the software dirty bits
in a pte or pmd. But the clearing of the software dirty bits is done
in common code with x86 specific page table functions.

Add the missing architecture primitives to clear the software dirty
bits to allow the feature to be used on non-x86 systems, e.g. the
s390 architecture.

Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/x86/include/asm/pgtable.h
fs/proc/task_mmu.c
include/asm-generic/pgtable.h