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linux-2.6/arch/s390/include/asm
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Heiko Carstens ed4f20943c s390/time: fix sched_clock() overflow 
Converting a 64 Bit TOD format value to nanoseconds means that the value
must be divided by 4.096. In order to achieve that we multiply with 125
and divide by 512.
When used within sched_clock() this triggers an overflow after appr.
417 days. Resulting in a sched_clock() return value that is much smaller
than previously and therefore may cause all sort of weird things in
subsystems that rely on a monotonic sched_clock() behaviour.

To fix this implement a tod_to_ns() helper function which converts TOD
values without overflow and call this function from both places that
open coded the conversion: sched_clock() and kvm_s390_handle_wait().

Cc: stable@kernel.org
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 		2013-01-16 15:57:52 +01:00
..
Kbuild tracing,x86: Add a TSC trace_clock 2012-11-13 15:48:27 -05:00
airq.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
appldata.h s390/appldata: change return value of appldata_asm 2012-09-26 15:45:15 +02:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
atomic.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
barrier.h s390/barrier: make use of fast-bcr facility 2012-05-16 14:42:45 +02:00
bitops.h s390/bitops: find leftmost bit instruction support 2012-11-30 15:40:48 +01:00
bug.h panic: Allow warnings to set different taint flags 2010-05-19 08:36:48 +01:00
bugs.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cache.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cacheflush.h module: undo module RONX protection correctly. 2011-05-19 16:55:26 +09:30
ccwdev.h s390/ccwdev: Include asm/schid.h. 2012-12-17 09:50:34 +01:00
ccwgroup.h s390/ccwgroup: allow drivers to call set_{on,off}line 2012-11-23 11:14:35 +01:00
checksum.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
chpid.h UAPI Disintegration 2012-10-09 2012-10-09 14:18:10 +02:00
cio.h s390: Move css limits from drivers/s390/cio/ to include/asm/. 2012-11-06 22:39:49 +01:00
clp.h s390/pci: CLP interface 2012-11-30 15:40:47 +01:00
cmb.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
cmpxchg.h s390/cmpxchg,percpu: implement cmpxchg_double() 2012-09-26 15:45:25 +02:00
compat.h COMPAT_SYSCALL_DEFINE: infrastructure 2012-12-19 18:06:58 -05:00
cpcmd.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cpu.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cpu_mf.h s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
cputime.h vtime: Consolidate a bit the ctx switch code 2012-11-19 16:41:32 +01:00
crw.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
css_chars.h s390/css_chars: remove superfluous ifdef 2012-10-09 14:17:00 +02:00
ctl_reg.h s390/headers: replace __s390x__ with CONFIG_64BIT where possible 2012-05-24 10:10:10 +02:00
current.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
debug.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
delay.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
device.h
…
diag.h [S390] replace diag10() with diag10_range() function 2011-05-10 17:13:43 +02:00
div64.h
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dma-mapping.h s390/pci: DMA support 2012-11-30 17:47:23 +01:00
dma.h s390/pci: define isa_dma_bridge_buggy 2013-01-08 10:57:09 +01:00
eadm.h s390/scm: remove superfluous lock 2012-09-26 15:45:09 +02:00
ebcdic.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
elf.h s390/crashdump: move fill_cpu_elf_notes() prototype to header file 2012-09-26 15:45:22 +02:00
emergency-restart.h
…
etr.h s390/etr,stp: use -EOPNOTSUPP instead of -ENOSYS 2012-09-26 15:45:14 +02:00
exec.h Disintegrate asm/system.h for S390 2012-03-28 18:30:02 +01:00
extmem.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
facility.h [S390] Fix stfle() lowcore protection problem 2012-04-11 14:28:26 +02:00
fb.h
…
fcx.h [S390] cio: update sac values 2008-12-25 13:39:06 +01:00
ftrace.h ftrace/s390: mcount offset calculation 2011-05-16 15:05:06 -04:00
futex.h s390/headers: remove #ifdef __KERNEL__ from not exported headers 2012-05-24 10:10:05 +02:00
hardirq.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
hugetlb.h thp, s390: architecture backend for thp on s390 2012-10-09 16:22:31 +09:00
hw_irq.h s390/pci: PCI adapter interrupts for MSI/MSI-X 2012-11-30 17:47:21 +01:00
idals.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
io.h s390/pci: define read*_relaxed functions 2013-01-08 10:57:11 +01:00
ipl.h [S390] kernel: Add z/VM LGR detection 2012-03-11 11:59:29 -04:00
irq.h s390/irq: count cpu restart events 2013-01-08 10:57:07 +01:00
irq_regs.h
…
irqflags.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
isc.h s390/pci: PCI adapter interrupts for MSI/MSI-X 2012-11-30 17:47:21 +01:00
itcw.h UAPI: Alter the S390 asm include guards to be recognisable by the UAPI splitter 2011-12-13 09:26:45 +00:00
jump_label.h static keys: Introduce 'struct static_key', static_key_true()/false() and static_key_slow_[inc|dec]() 2012-02-24 10:05:59 +01:00
kdebug.h [S390] cleanup trap handling 2011-12-27 11:27:12 +01:00
kexec.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
kmap_types.h s390/headers: remove #ifdef __KERNEL__ from not exported headers 2012-05-24 10:10:05 +02:00
kprobes.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
kvm_host.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
kvm_para.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
linkage.h [S390] fix s390 assembler code alignments 2011-07-24 10:48:21 +02:00
local.h
…
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
lowcore.h s390: add support for transactional memory 2012-09-26 15:45:02 +02:00
mathemu.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mman.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
mmu.h [S390] Fix build errors (fallout from system.h disintegration) 2012-03-30 09:41:12 +02:00
mmu_context.h s390/mm: rename addressing_mode to s390_user_mode 2012-09-26 15:45:05 +02:00
module.h Make most arch asm/module.h files use asm-generic/module.h 2012-09-28 14:31:03 +09:30
mutex.h [S390] mutex: Introduce arch_mutex_cpu_relax() 2011-01-05 12:47:31 +01:00
nmi.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
os_info.h s390/kernel: Remove OS info init function call and diag 308 for kdump 2012-05-23 17:06:50 +02:00
page.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-12-13 14:20:19 -08:00
pci.h s390/pci: performance statistics and debug infrastructure 2012-12-14 10:01:17 +01:00
pci_clp.h s390/pci: CLP interface 2012-11-30 15:40:47 +01:00
pci_debug.h s390/pci: performance statistics and debug infrastructure 2012-12-14 10:01:17 +01:00
pci_dma.h s390/pci: DMA support 2012-11-30 17:47:23 +01:00
pci_insn.h s390/pci: no msleep in potential IRQ context 2012-12-05 09:12:51 -05:00
pci_io.h s390/pci: base support 2012-11-30 15:40:45 +01:00
percpu.h s390/cmpxchg,percpu: implement cmpxchg_double() 2012-09-26 15:45:25 +02:00
perf_event.h perf_cpum_cf: Add support for counters available with IBM zEC12 2012-10-18 17:50:09 +02:00
pgalloc.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
pgtable.h s390/mm: fix pmd_pfn() for thp 2013-01-12 18:49:25 +01:00
processor.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2012-10-10 12:02:25 +09:00
ptrace.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
qdio.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
reset.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
runtime_instr.h s390: add support for runtime instrumentation 2012-09-26 15:45:02 +02:00
rwsem.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
scatterlist.h [S390] set ARCH_HAS_SG_CHAIN for s390 2010-10-25 16:10:15 +02:00
schid.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
sclp.h s390/pci: PCI hotplug support via SCLP 2012-11-30 17:47:25 +01:00
scsw.h s390: add eadm related structures 2012-09-26 15:44:57 +02:00
seccomp.h [S390] secure computing arch backend 2009-06-12 10:27:31 +02:00
sections.h
…
segment.h
…
setup.h UAPI Disintegration 2012-10-09 2012-10-09 14:18:10 +02:00
sfp-machine.h
…
sfp-util.h s390/headers: replace __s390x__ with CONFIG_64BIT where possible 2012-05-24 10:10:10 +02:00
shmparam.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
signal.h unify default ptrace_signal_deliver 2012-11-29 00:01:23 -05:00
sigp.h KVM: s390: Fix sigp sense handling. 2012-07-03 14:55:37 -03:00
smp.h s390/smp,topology: add polarization member to pcpu struct 2012-09-26 15:45:09 +02:00
sparsemem.h s390/mm: remove MAX_PHYSADDR_BITS define 2012-08-08 07:32:55 -07:00
spinlock.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
string.h s390/string: provide asm lib functions for memcpy and memcmp 2012-09-26 15:44:50 +02:00
switch_to.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-10-01 11:49:56 -07:00
syscall.h s390/seccomp: add support for system call filtering using BPF 2012-08-08 07:32:56 -07:00
sysinfo.h s390/sysinfo,stsi: change return code handling 2012-09-26 15:45:12 +02:00
termios.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
thread_info.h sanitize tsk_is_polling() 2012-10-01 09:58:13 -04:00
timex.h s390/time: fix sched_clock() overflow 2013-01-16 15:57:52 +01:00
tlb.h thp, s390: architecture backend for thp on s390 2012-10-09 16:22:31 +09:00
tlbflush.h s390/mm: fix deadlock in unmap_hugepage_range() 2012-09-03 11:14:06 +02:00
topology.h s390/topology: cleanup topology code 2012-11-23 11:14:31 +01:00
types.h UAPI: (Scripted) Disintegrate arch/s390/include/asm 2012-10-09 09:47:31 +01:00
uaccess.h s390/exceptions: switch to relative exception table entries 2012-09-26 15:45:10 +02:00
unaligned.h
…
unistd.h Bury the conditionals from kernel_thread/kernel_execve series 2012-12-19 18:07:38 -05:00
user.h s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vdso.h s390/headers: remove #ifdef __KERNEL__ from not exported headers 2012-05-24 10:10:05 +02:00
vga.h vga: compile fix, disable vga for s390 2012-11-30 17:47:28 +01:00
vtimer.h s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
xor.h
…