mm: soft-dirty: keep soft-dirty bits over thp migration
authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Fri, 8 Sep 2017 23:11:04 +0000 (16:11 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 9 Sep 2017 01:26:45 +0000 (18:26 -0700)
commitab6e3d0939bb332d72444a532f0f72e0dfde7b7b
treed2a292622ba757f4ac262840415d1a614acd8283
parent84c3fc4e9c563d8fb91cfdf5948da48fe1af34d3
mm: soft-dirty: keep soft-dirty bits over thp migration

Soft dirty bit is designed to keep tracked over page migration.  This
patch makes it work in the same manner for thp migration too.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Nellans <dnellans@nvidia.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/x86/include/asm/pgtable.h
fs/proc/task_mmu.c
include/asm-generic/pgtable.h
include/linux/swapops.h
mm/huge_memory.c