ia64: Patch from Asit K. Mallick: fix a few places where last_fph_cpu

	wasn't updated and one place in the sigreturn path where
	the fph-owner wasn't set.

arch/ia64/kernel/ptrace.c

@@ -589,6 +589,7 @@ ia64_flush_fph (struct task_struct *task)
 		psr->mfh = 0;
 		ia64_save_fpu(&task->thread.fph[0]);
 		task->thread.flags |= IA64_THREAD_FPH_VALID;
+		task->thread.last_fph_cpu = smp_processor_id();
 	}
 }
 
@@ -608,6 +609,7 @@ ia64_sync_fph (struct task_struct *task)
 	ia64_flush_fph(task);
 	if (!(task->thread.flags & IA64_THREAD_FPH_VALID)) {
 		task->thread.flags |= IA64_THREAD_FPH_VALID;
+		task->thread.last_fph_cpu = -1;		/* force reload */
 		memset(&task->thread.fph, 0, sizeof(task->thread.fph));
 	}
 #ifndef CONFIG_SMP

arch/ia64/kernel/signal.c

@@ -142,8 +142,13 @@ restore_sigcontext (struct sigcontext *sc, struct sigscratch *scr)
 
 		__copy_from_user(current->thread.fph, &sc->sc_fr[32], 96*16);
 		psr->mfh = 0;	/* drop signal handler's fph contents... */
-		if (!psr->dfh)
+		if (psr->dfh)
+			current->thread.last_fph_cpu = -1;
+		else {
 			__ia64_load_fpu(current->thread.fph);
+			ia64_set_fpu_owner(current);
+			current->thread.last_fph_cpu = smp_processor_id();
+		}
 	}
 	return err;
 }