commit b50511e41aa51a89b4176784a670582424bc7db6
author Martin Schwidefsky <schwidefsky@de.ibm.com> Sun Oct 30 15:16:50 2011 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> Sun Oct 30 15:16:43 2011 +0100
tree 0ad1553c7f2431878310e590187ee59ccb4d8cab
parent b6ef5bb3d93efb95ba855a628740375c2280a59e

[S390] cleanup psw related bits and pieces

Split out addressing mode bits from PSW_BASE_BITS, rename PSW_BASE_BITS
to PSW_MASK_BASE, get rid of psw_user32_bits, remove unused function
enabled_wait(), introduce PSW_MASK_USER, and drop PSW_MASK_MERGE macros.
Change psw_kernel_bits / psw_user_bits to contain only the bits that
are always set in the respective mode.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/kernel/process.c

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 541a750..5e64a9a 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -117,7 +117,8 @@
 	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_DAT | PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
 	regs.psw.addr = (unsigned long) kernel_thread_starter | PSW_ADDR_AMODE;
 	regs.gprs[9] = (unsigned long) fn;
 	regs.gprs[10] = (unsigned long) arg;