tree fc26947a0111c7e71085a81e26f12c815f3f4c09
parent ccf45cafb0805978e6f13a672caca0e536e87cad
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1319984209 +0100
committer Martin Schwidefsky <schwidefsky@de.ibm.com> 1319984203 +0100

[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>