[S390] noexec protection

[linux-2.6-omap-h63xx.git] / arch / s390 / kernel / process.c

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 4a0f5a1551eadcf021d6ecf317a1e61e0ef07dea..5acfac654f9d7867463e4378b6e7e955bdc5b9ad 100644 (file)
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -15,7 +15,6 @@
  * This file handles the architecture-dependent parts of process handling..
  */
 
-#include <linux/config.h>
 #include <linux/compiler.h>
 #include <linux/cpu.h>
 #include <linux/errno.h>
@@ -46,7 +45,7 @@
 #include <asm/irq.h>
 #include <asm/timer.h>
 
-asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
+asmlinkage void ret_from_fork(void) asm ("ret_from_fork");
 
 /*
  * Return saved PC of a blocked thread. used in kernel/sched.
@@ -143,8 +142,9 @@ static void default_idle(void)
                return;
        }
 
+       trace_hardirqs_on();
        /* Wait for external, I/O or machine check interrupt. */
-       __load_psw_mask(PSW_KERNEL_BITS | PSW_MASK_WAIT |
+       __load_psw_mask(psw_kernel_bits | PSW_MASK_WAIT |
                        PSW_MASK_IO | PSW_MASK_EXT);
 }
 
@@ -172,12 +172,13 @@ void show_regs(struct pt_regs *regs)
        show_registers(regs);
        /* Show stack backtrace if pt_regs is from kernel mode */
        if (!(regs->psw.mask & PSW_MASK_PSTATE))
-               show_trace(0,(unsigned long *) regs->gprs[15]);
+               show_trace(NULL, (unsigned long *) regs->gprs[15]);
 }
 
 extern void kernel_thread_starter(void);
 
-__asm__(".align 4\n"
+asm(
+       ".align 4\n"
        "kernel_thread_starter:\n"
        "    la    2,0(10)\n"
        "    basr  14,9\n"
@@ -189,7 +190,7 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
        struct pt_regs regs;
 
        memset(&regs, 0, sizeof(regs));
-       regs.psw.mask = PSW_KERNEL_BITS | PSW_MASK_IO | PSW_MASK_EXT;
+       regs.psw.mask = psw_kernel_bits | PSW_MASK_IO | PSW_MASK_EXT;
        regs.psw.addr = (unsigned long) kernel_thread_starter | PSW_ADDR_AMODE;
        regs.gprs[9] = (unsigned long) fn;
        regs.gprs[10] = (unsigned long) arg;