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authorHeiko Carstens <heiko.carstens@de.ibm.com>2005-09-03 18:58:04 -0400
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 03:06:29 -0400
commitc563077e526d130b8c9aab4e75116551eb5fdc2d (patch)
treed4296f485f97a1d56db6eda5c7ad7b28a14be454 /arch/s390/kernel
parent2dee702fcb197d80c1a94650fb611539dd8135ce (diff)
[PATCH] s390: compat system calls
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> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/entry64.S4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 5db5976ff594..fb77b72ab262 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -214,8 +214,8 @@ sysc_nr_ok:
214sysc_do_restart: 214sysc_do_restart:
215 larl %r10,sys_call_table 215 larl %r10,sys_call_table
216#ifdef CONFIG_S390_SUPPORT 216#ifdef CONFIG_S390_SUPPORT
217 tm SP_PSW+3(%r15),0x01 # are we running in 31 bit mode ? 217 tm __TI_flags+5(%r9),(_TIF_31BIT>>16) # running in 31 bit mode ?
218 jo sysc_noemu 218 jno sysc_noemu
219 larl %r10,sys_call_table_emu # use 31 bit emulation system calls 219 larl %r10,sys_call_table_emu # use 31 bit emulation system calls
220sysc_noemu: 220sysc_noemu:
221#endif 221#endif