From 80217147a3d80c8a4e48f06e2f6e965455f3fe2a Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Mon, 25 Oct 2010 16:10:11 +0200 Subject: [S390] lockless get_user_pages_fast() Implement get_user_pages_fast without locking in the fastpath on s390. Signed-off-by: Martin Schwidefsky --- arch/s390/include/asm/pgtable.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/s390/include/asm/pgtable.h') diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 22a294571000..785229ae39cb 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -316,6 +316,7 @@ extern unsigned long VMALLOC_START; /* Bits in the segment table entry */ #define _SEGMENT_ENTRY_ORIGIN 0x7fffffc0UL /* page table origin */ +#define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ #define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ #define _SEGMENT_ENTRY_COMMON 0x10 /* common segment bit */ #define _SEGMENT_ENTRY_PTL 0x0f /* page table length */ -- cgit v1.2.3