diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-10-25 16:10:11 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 16:10:15 +0200 |
| commit | 80217147a3d80c8a4e48f06e2f6e965455f3fe2a (patch) | |
| tree | b419ae9ee3ab0e5b92c0ed2a30ff59b76d6a4978 /arch/s390/include/asm/pgtable.h | |
| parent | 87799ebab760dd1460f6e4193d4f71ba416d1451 (diff) | |
[S390] lockless get_user_pages_fast()
Implement get_user_pages_fast without locking in the fastpath on s390.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/pgtable.h')
| -rw-r--r-- | arch/s390/include/asm/pgtable.h | 1 |
1 files changed, 1 insertions, 0 deletions
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 */ |