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authorHeiko Carstens <heiko.carstens@de.ibm.com>2009-09-22 22:58:50 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-09-22 22:58:45 +0200
commit2573a575304c5ce4765fc88f9d09ed4dbf8d04bf (patch)
treea639741e80e2424254767b332c53bddd0ebc42cb /arch/s390/include
parent3fd26a7793fb21b88ccf1e238670b2a508fcf835 (diff)
downloadop-kernel-dev-2573a575304c5ce4765fc88f9d09ed4dbf8d04bf.zip
op-kernel-dev-2573a575304c5ce4765fc88f9d09ed4dbf8d04bf.tar.gz
[S390] hibernate: make sure pfn_is_nosave handles lowcore pages
pfn_is_nosave doesn't return the correct value for the second lowcore page if lowcore protection is enabled. Make sure it always returns the correct value. While at it simplify the whole thing. NSS special handling is done by the tprot check like it already works for DCSS as well. So remove the extra code for NSS. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include')
-rw-r--r--arch/s390/include/asm/lowcore.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 8c55703..a3ff9b0 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -195,6 +195,8 @@ union save_area {
#define LC_ORDER 1
#endif
+#define LC_PAGES (1UL << LC_ORDER)
+
struct _lowcore
{
#ifndef __s390x__
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