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Subject[patch 8/10] s390: compat system calls.
[patch 8/10] s390: compat system calls.

From: Heiko Carstens <heiko.carstens@de.ibm.com>

Use TIF bit to tell if a process is running in 31 bit mode instead of
checking the addressing mode bits of the PSW.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diffstat:
arch/s390/kernel/entry64.S | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff -urpN linux-2.6/arch/s390/kernel/entry64.S linux-2.6-patched/arch/s390/kernel/entry64.S
--- linux-2.6/arch/s390/kernel/entry64.S 2005-08-29 19:18:06.000000000 +0200
+++ linux-2.6-patched/arch/s390/kernel/entry64.S 2005-08-29 19:18:11.000000000 +0200
@@ -214,8 +214,8 @@ sysc_nr_ok:
sysc_do_restart:
larl %r10,sys_call_table
#ifdef CONFIG_S390_SUPPORT
- tm SP_PSW+3(%r15),0x01 # are we running in 31 bit mode ?
- jo sysc_noemu
+ tm __TI_flags+5(%r9),(_TIF_31BIT>>16) # running in 31 bit mode ?
+ jno sysc_noemu
larl %r10,sys_call_table_emu # use 31 bit emulation system calls
sysc_noemu:
#endif
-
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