[PATCH] s390: signal delivery

Always create all signal frames for pending signals before returning to
userspace, not just a single one.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/s390/kernel/entry.S

@@ -288,7 +288,7 @@ sysc_sigpending:
 	bo	BASED(sysc_restart)
 	tm	__TI_flags+3(%r9),_TIF_SINGLE_STEP
 	bo	BASED(sysc_singlestep)
-	b	BASED(sysc_leave)      # out of here, do NOT recheck
+	b	BASED(sysc_work_loop)
 
 #
 # _TIF_RESTART_SVC is set, set up registers and restart svc
@@ -645,7 +645,7 @@ io_sigpending:
         l       %r1,BASED(.Ldo_signal)
 	basr    %r14,%r1	       # call do_signal
         stnsm   __SF_EMPTY(%r15),0xfc  # disable I/O and ext. interrupts
-	b	BASED(io_leave)        # out of here, do NOT recheck
+	b	BASED(io_work_loop)
 
 /*
  * External interrupt handler routine

arch/s390/kernel/entry64.S

@@ -283,7 +283,7 @@ sysc_sigpending:
 	jo	sysc_restart
 	tm	__TI_flags+7(%r9),_TIF_SINGLE_STEP
 	jo	sysc_singlestep
-	j	sysc_leave        # out of here, do NOT recheck
+	j	sysc_work_loop
 
 #
 # _TIF_RESTART_SVC is set, set up registers and restart svc
@@ -684,7 +684,7 @@ io_sigpending:
 	slgr    %r3,%r3			# clear *oldset
 	brasl	%r14,do_signal		# call do_signal
 	stnsm   __SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
-	j	sysc_leave		# out of here, do NOT recheck
+	j	io_work_loop
 
 /*
  * External interrupt handler routine