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| author |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:49 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2011-10-30 15:16:43 +0100 |
| commit | b6ef5bb3d93efb95ba855a628740375c2280a59e (patch) | |
| tree | fc26947a0111c7e71085a81e26f12c815f3f4c09 /arch/s390/kernel/ptrace.c | |
| parent | [S390] addressing mode limits and psw address wrapping (diff) | |
| download | linux-dev-b6ef5bb3d93efb95ba855a628740375c2280a59e.tar.xz linux-dev-b6ef5bb3d93efb95ba855a628740375c2280a59e.zip | |
[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.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index bae1cc49fe96..3519c99ae0c0 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; } |