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author	Janosch Frank <frankja@linux.ibm.com>
	Tue, 17 Jul 2018 12:21:22 +0000 (13:21 +0100)
committer	Janosch Frank <frankja@linux.ibm.com>
	Mon, 30 Jul 2018 10:20:18 +0000 (11:20 +0100)
commit	0959e168678d2d95648317e1e5e46bcb358272eb
tree	384aaaf4b65878390acb5fd2cf2cc8d7fd68cc6c	tree \| snapshot
parent	6a3762778d1ba1a58ab473124790cd612d10eadc	commit \| diff

s390/mm: Add huge page dirty sync support

To do dirty loging with huge pages, we protect huge pmds in the
gmap. When they are written to, we unprotect them and mark them dirty.

We introduce the function gmap_test_and_clear_dirty_pmd which handles
dirty sync for huge pages.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>

John Crispins staging tree

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arch/s390/include/asm/gmap.h		diff \| blob \| history
arch/s390/include/asm/pgtable.h		diff \| blob \| history
arch/s390/kvm/kvm-s390.c		diff \| blob \| history
arch/s390/mm/gmap.c		diff \| blob \| history
arch/s390/mm/pgtable.c		diff \| blob \| history