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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2011-10-30 15:16:49 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2011-10-30 15:16:43 +0100
commitb6ef5bb3d93efb95ba855a628740375c2280a59e (patch)
treefc26947a0111c7e71085a81e26f12c815f3f4c09 /arch/s390/kernel/ptrace.c
parentccf45cafb0805978e6f13a672caca0e536e87cad (diff)
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op-kernel-dev-b6ef5bb3d93efb95ba855a628740375c2280a59e.tar.gz
[S390] add TIF_SYSCALL thread flag
Add an explicit TIF_SYSCALL bit that indicates if a task is inside a system call. The svc_code in the pt_regs structure is now only valid if TIF_SYSCALL is set. With this definition TIF_RESTART_SVC can be replaced with TIF_SYSCALL. Overall do_signal is a bit more readable and it saves a few lines of code. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/ptrace.c')
-rw-r--r--arch/s390/kernel/ptrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index bae1cc4..3519c99 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -750,7 +750,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
* debugger stored an invalid system call number. Skip
* the system call and the system call restart handling.
*/
- regs->svc_code = 0;
+ clear_thread_flag(TIF_SYSCALL);
ret = -1;
}
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