[S390] 1K/2K page table pages.
This patch implements 1K/2K page table pages for s390.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/include/asm-s390/elf.h b/include/asm-s390/elf.h
index b73a424..8181ca5 100644
--- a/include/asm-s390/elf.h
+++ b/include/asm-s390/elf.h
@@ -115,6 +115,7 @@
#include <linux/sched.h> /* for task_struct */
#include <asm/system.h> /* for save_access_regs */
+#include <asm/mmu_context.h>
/*
* This is used to ensure we don't load something for the wrong architecture.
@@ -214,4 +215,16 @@
} while (0)
#endif /* __s390x__ */
+/*
+ * An executable for which elf_read_implies_exec() returns TRUE will
+ * have the READ_IMPLIES_EXEC personality flag set automatically.
+ */
+#define elf_read_implies_exec(ex, executable_stack) \
+({ \
+ if (current->mm->context.noexec && \
+ executable_stack != EXSTACK_DISABLE_X) \
+ disable_noexec(current->mm, current); \
+ current->mm->context.noexec == 0; \
+})
+
#endif