[PATCH] s390: general update

[PATCH] s390: general update

From: Martin Schwidefsky <schwidefsky@de.ibm.com>

 - Add console_unblank in machine_{restart,halt,power_off} to get
   all messages on the screen.
 - Set console_irq to -1 if condev= parameter is present.
 - Fix write_trylock for 64 bit.
 - Fix svc restarting.
 - System call number on 64 bit is an int. Fix compare in entry64.S.
 - Fix tlb flush problem.
 - Use the idte instruction to flush tlbs of a particular mm.
 - Fix ptrace.
 - Add fadvise64_64 system call wrapper.
 - Fix pfault handling.
 - Do not clobber _PAGE_INVALID_NONE pages in pte_wrprotect.
 - Fix siginfo_t size problem (needs to be 128 for s390x, not 136).
 - Avoid direct assignment to tsk->state, use __set_task_state.
 - Always make any pending restarted system call return -EINTR.
 - Add panic_on_oops.
 - Display symbol for psw address in show_trace.
 - Don't discard sections .exit.text, .exit.data and .eh_frame,
   otherwise stabs information for kerntypes will get lost.
 - Add memory clobber to assembler inline in ip_fast_checksum for gcc 3.3.
 - Fix softirq_pending calls for the current cpu (cpu == smp_processor_id()).
 - Remove BUG_ON in irq_enter. Two irq_enters are possible.