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[S390] implement is_compat_task

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Implement is_compat_task and use it all over the place.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2009-06-12 10:26:25 +02:00
committed by Martin Schwidefsky
parent d90cbd469c
commit 7757591ab4
7 changed files with 36 additions and 19 deletions
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3
arch/s390/kernel/process.c
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@@ -32,6 +32,7 @@
#include <linux/elfcore.h>
#include <linux/kernel_stat.h>
#include <linux/syscalls.h>
#include <asm/compat.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/system.h>
@@ -204,7 +205,7 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
save_fp_regs(&p->thread.fp_regs);
/* Set a new TLS ? */
if (clone_flags & CLONE_SETTLS) {
if (test_thread_flag(TIF_31BIT)) {
if (is_compat_task()) {
p->thread.acrs[0] = (unsigned int) regs->gprs[6];
} else {
p->thread.acrs[0] = (unsigned int)(regs->gprs[6] >> 32);