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Commit 01133148 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 

* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
  [S390] fix s390x_newuname
  [S390] dasd: log sense for fatal errors
  [S390] cpu topology: fix locking
  [S390] cio: Fix refcount after moving devices.
  [S390] ftrace: fix kernel stack backchain walking
  [S390] ftrace: disable tracing on idle psw
  [S390] lockdep: fix compile bug
  [S390] kvm_s390: Fix oops in virtio device detection with "mem="
  [S390] sclp: emit error message if assign storage fails
  [S390] Fix range for add_active_range() in setup_memory()
parents c98114db d2f019fe

arch/s390/kernel/entry.S

+13 −7
Original line number Diff line number Diff line
@@ -61,22 +61,25 @@ STACK_SIZE = 1 << STACK_SHIFT 


#ifdef CONFIG_TRACE_IRQFLAGS

	.macro	TRACE_IRQS_ON

	l	%r1,BASED(.Ltrace_irq_on)

	basr	%r2,%r0

	l	%r1,BASED(.Ltrace_irq_on_caller)

	basr	%r14,%r1

	.endm



	.macro	TRACE_IRQS_OFF

	l	%r1,BASED(.Ltrace_irq_off)

	basr	%r2,%r0

	l	%r1,BASED(.Ltrace_irq_off_caller)

	basr	%r14,%r1

	.endm



	.macro	TRACE_IRQS_CHECK

	basr	%r2,%r0

	tm	SP_PSW(%r15),0x03	# irqs enabled?

	jz	0f

	l	%r1,BASED(.Ltrace_irq_on)

	l	%r1,BASED(.Ltrace_irq_on_caller)

	basr	%r14,%r1

	j	1f

0:	l	%r1,BASED(.Ltrace_irq_off)

0:	l	%r1,BASED(.Ltrace_irq_off_caller)

	basr	%r14,%r1

1:

	.endm
@@ -1113,9 +1116,12 @@ cleanup_io_leave_insn: 
.Lschedtail:	.long	schedule_tail

.Lsysc_table:	.long	sys_call_table

#ifdef CONFIG_TRACE_IRQFLAGS

.Ltrace_irq_on: .long	trace_hardirqs_on

.Ltrace_irq_off:

		.long	trace_hardirqs_off

.Ltrace_irq_on_caller:

		.long	trace_hardirqs_on_caller

.Ltrace_irq_off_caller:

		.long	trace_hardirqs_off_caller

#endif

#ifdef CONFIG_LOCKDEP

.Llockdep_sys_exit:

		.long	lockdep_sys_exit

#endif

arch/s390/kernel/entry64.S

+7 −4
Original line number Diff line number Diff line
@@ -61,19 +61,22 @@ _TIF_WORK_INT = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \ 


#ifdef CONFIG_TRACE_IRQFLAGS

	.macro	TRACE_IRQS_ON

	 brasl	%r14,trace_hardirqs_on

	 basr	%r2,%r0

	 brasl	%r14,trace_hardirqs_on_caller

	.endm



	.macro	TRACE_IRQS_OFF

	 brasl	%r14,trace_hardirqs_off

	 basr	%r2,%r0

	 brasl	%r14,trace_hardirqs_off_caller

	.endm



	.macro TRACE_IRQS_CHECK

	basr	%r2,%r0

	tm	SP_PSW(%r15),0x03	# irqs enabled?

	jz	0f

	brasl	%r14,trace_hardirqs_on

	brasl	%r14,trace_hardirqs_on_caller

	j	1f

0:	brasl	%r14,trace_hardirqs_off

0:	brasl	%r14,trace_hardirqs_off_caller

1:

	.endm

#else

arch/s390/kernel/process.c

+3 −0
Original line number Diff line number Diff line
@@ -136,9 +136,12 @@ static void default_idle(void) 
		return;

	}

	trace_hardirqs_on();

	/* Don't trace preempt off for idle. */

	stop_critical_timings();

	/* Wait for external, I/O or machine check interrupt. */

	__load_psw_mask(psw_kernel_bits | PSW_MASK_WAIT |

			PSW_MASK_IO | PSW_MASK_EXT);

	start_critical_timings();

}



void cpu_idle(void)

arch/s390/kernel/setup.c

+2 −2
Original line number Diff line number Diff line
@@ -604,13 +604,13 @@ setup_memory(void) 
		if (memory_chunk[i].type != CHUNK_READ_WRITE)

			continue;

		start_chunk = PFN_DOWN(memory_chunk[i].addr);

		end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size) - 1;

		end_chunk = start_chunk + PFN_DOWN(memory_chunk[i].size);

		end_chunk = min(end_chunk, end_pfn);

		if (start_chunk >= end_chunk)

			continue;

		add_active_range(0, start_chunk, end_chunk);

		pfn = max(start_chunk, start_pfn);

		for (; pfn <= end_chunk; pfn++)

		for (; pfn < end_chunk; pfn++)

			page_set_storage_key(PFN_PHYS(pfn), PAGE_DEFAULT_KEY);

	}

arch/s390/kernel/sys_s390.c

+1 −1
Original line number Diff line number Diff line
@@ -198,7 +198,7 @@ asmlinkage long s390x_newuname(struct new_utsname __user *name) 
{

	int ret = sys_newuname(name);



	if (current->personality == PER_LINUX32 && !ret) {

	if (personality(current->personality) == PER_LINUX32 && !ret) {

		ret = copy_to_user(name->machine, "s390\0\0\0\0", 8);

		if (ret) ret = -EFAULT;

	}