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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2010-01-13 20:44:28 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-01-13 20:44:44 +0100
commitbebf023d415fd8984994a596aaa83cd0a3046d0b (patch)
tree5708a0d8ee1f48b982a847916bee0447a56b26a7 /arch/s390/kernel
parent6f50248ef0efa7453397eb53e41e8aa5df534492 (diff)
[S390] remove superfluous TIF_USEDFPU bit
The TIF_USEDFPU bit is always 0 for s390 and it is not tested anywhere. Remove the bit. At the same time remove the calls to clear_used_math() as well. The PF_USED_MATH bit is never set for s390 either. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/process.c2
-rw-r--r--arch/s390/kernel/setup.c6
2 files changed, 0 insertions, 8 deletions
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index b98fe8e6e507..00b6d1d292f2 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -153,8 +153,6 @@ void exit_thread(void)
void flush_thread(void)
{
- clear_used_math();
- clear_tsk_thread_flag(current, TIF_USEDFPU);
}
void release_thread(struct task_struct *dead_task)
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 0663287fa1b3..2148ad3d490d 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -124,12 +124,6 @@ void __cpuinit cpu_init(void)
*/
get_cpu_id(&S390_lowcore.cpu_id);
- /*
- * Force FPU initialization:
- */
- clear_thread_flag(TIF_USEDFPU);
- clear_used_math();
-
atomic_inc(&init_mm.mm_count);
current->active_mm = &init_mm;
BUG_ON(current->mm);