forge/linux-uconsole
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity Actions
linux-uconsole/arch/s390/include/asm
History
Heiko Carstens 228f49c2da s390/time: fix sched_clock() overflow 
commit ed4f20943c upstream.

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().

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-21 11:44:58 -08:00
..
airq.h
appldata.h
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
atomic.h Fix common misspellings 2011-03-31 11:26:23 -03:00
auxvec.h [S390] introduce vdso on s390 2008-12-25 13:38:55 +01:00
bitops.h s390: use asm-generic/bitops/le.h 2011-05-26 17:12:38 -07:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bug.h panic: Allow warnings to set different taint flags 2010-05-19 08:36:48 +01:00
bugs.h
byteorder.h byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
cache.h [S390] net: provide architecture specific NET_SKB_PAD 2011-02-17 13:13:59 +01:00
cacheflush.h module: undo module RONX protection correctly. 2011-05-19 16:55:26 +09:30
ccwdev.h [S390] ccw_driver: remove duplicate members 2011-03-23 10:15:59 +01:00
ccwgroup.h [S390] ccwgroup_driver: remove duplicate members 2011-03-23 10:15:59 +01:00
checksum.h [S390] convert/optimize csum_fold() to C 2009-09-11 10:29:43 +02:00
chpid.h [S390] types: add/fix types.h include in header files 2009-01-09 12:15:06 +01:00
chsc.h [S390] cio: move scsw helper functions to header file 2009-09-11 10:29:36 +02:00
cio.h Fix common misspellings 2011-03-31 11:26:23 -03:00
cmb.h [S390] types: add/fix types.h include in header files 2009-01-09 12:15:06 +01:00
cmpxchg.h [S390] percpu: implement arch specific irqsafe_cpu_ops 2011-05-23 10:24:29 +02:00
compat.h compat: fix compile breakage on s390 2012-03-12 10:32:38 -07:00
cpcmd.h
cpu.h [S390] correct alignment of cpuid structure 2010-10-25 16:10:19 +02:00
cputime.h [S390] nohz: optimize arch_needs_cpu() 2011-01-05 12:47:28 +01:00
crw.h [S390] cio: wait for channel report 2010-02-26 22:37:29 +01:00
current.h
dasd.h [S390] dasd: Add support for raw ECKD access. 2011-01-05 12:47:30 +01:00
debug.h [S390] s390dbf: Add description for usage of "%s" in sprintf events 2009-09-11 10:29:53 +02:00
delay.h [S390] delay: implement ndelay 2011-05-26 09:48:25 +02:00
device.h
diag.h [S390] replace diag10() with diag10_range() function 2011-05-10 17:13:43 +02:00
div64.h
dma.h
ebcdic.h
elf.h [S390] Remove data execution protection 2011-05-23 10:24:28 +02:00
emergency-restart.h
errno.h
etr.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
extmem.h
fb.h
fcntl.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 futex: Sanitize futex ops argument types 2011-03-11 12:23:31 +01:00
hardirq.h [S390] time: move local_tick_enable()/disable() to timex.h 2011-01-05 12:47:24 +01:00
hugetlb.h [S390] Remove data execution protection 2011-05-23 10:24:28 +02:00
idals.h [S390] dasd: add High Performance FICON support 2009-03-26 15:24:05 +01:00
io.h
ioctl.h
ioctls.h ioctl: Use asm-generic/ioctls.h on s390 (enables termiox) 2010-10-22 10:20:01 -07:00
ipcbuf.h
ipl.h [S390] kernel: Append scpdata to kernel boot command line 2009-09-11 10:29:46 +02:00
irq.h [S390] irq: merge irq.c and s390_ext.c 2011-05-26 09:48:24 +02:00
irq_regs.h
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
isc.h [S390] zcrypt: Use of Thin Interrupts 2008-12-25 13:38:57 +01:00
itcw.h
jump_label.h jump label: Add s390 support 2011-04-04 13:43:16 -04:00
Kbuild KVM: S390: Export kvm_virtio.h 2010-10-24 10:51:30 +02:00
kdebug.h
kexec.h
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
kprobes.h [S390] kprobes: jprobe save and restore 2011-01-05 12:47:24 +01:00
kvm.h KVM: s390: Make psw available on all exits, not just a subset 2009-12-03 09:32:25 +02:00
kvm_host.h KVM: Remove unnecessary divide operations 2010-08-01 10:47:30 +03:00
kvm_para.h KVM: Add __KERNEL__ guards to exported headers 2009-09-10 10:46:48 +03:00
kvm_virtio.h KVM: S390: Add virtio hotplug add support 2010-10-24 10:51:29 +02:00
linkage.h
local.h
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
lowcore.h [S390] pfault: cpu hotplug vs missing completion interrupts 2011-05-23 10:24:29 +02:00
mathemu.h
mman.h mm: remove duplicate asm/mman.h files 2009-09-22 07:17:42 -07:00
mmu.h [S390] refactor page table functions for better pgste support 2011-05-23 10:24:31 +02:00
mmu_context.h [S390] Remove data execution protection 2011-05-23 10:24:28 +02:00
module.h
monwriter.h
msgbuf.h
mutex.h [S390] mutex: Introduce arch_mutex_cpu_relax() 2011-01-05 12:47:31 +01:00
nmi.h [S390] split/move machine check handler code 2009-03-26 15:24:10 +01:00
page.h [S390] refactor page table functions for better pgste support 2011-05-23 10:24:31 +02:00
param.h [S390] Have param.h simply include <asm-generic/param.h>. 2010-01-04 09:05:58 +01:00
pci.h
percpu.h [S390] percpu: implement arch specific irqsafe_cpu_ops 2011-05-23 10:24:29 +02:00
perf_event.h irq_work: Add generic hardirq context callbacks 2010-10-18 19:58:50 +02:00
pgalloc.h S390: fix tlb flushing for page table pages 2012-04-22 16:21:45 -07:00
pgtable.h [S390] fix kvm defines for 31 bit compile 2011-06-06 14:14:56 +02:00
poll.h
posix_types.h [S390] asm-s390/posix_types.h: drop __USE_ALL usage 2009-01-09 12:15:04 +01:00
processor.h [S390] pfault: cpu hotplug vs missing completion interrupts 2011-05-23 10:24:29 +02:00
ptrace.h [S390] ptrace cleanup 2011-01-05 12:47:31 +01:00
qdio.h [S390] qdio: Split SBAL entry flags 2011-06-06 14:14:56 +02:00
qeth.h qeth: support ipv6 query arp cache for HiperSockets 2010-12-10 14:28:47 -08:00
reset.h
resource.h
rwsem.h rwsem: Move duplicate function prototypes to linux/rwsem.h 2011-01-27 12:30:39 +01:00
scatterlist.h [S390] set ARCH_HAS_SG_CHAIN for s390 2010-10-25 16:10:15 +02:00
schid.h [S390] types: add/fix types.h include in header files 2009-01-09 12:15:06 +01:00
sclp.h
scsw.h [S390] cio: move scsw helper functions to header file 2009-09-11 10:29:36 +02:00
seccomp.h [S390] secure computing arch backend 2009-06-12 10:27:31 +02:00
sections.h
segment.h
sembuf.h
setup.h [S390] topology: clean up facility detection 2010-10-25 16:10:21 +02:00
sfp-machine.h
sfp-util.h Revert "endian: #define __BYTE_ORDER" 2010-05-26 08:30:15 -07:00
shmbuf.h
shmparam.h
sigcontext.h
siginfo.h
signal.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
sigp.h [S390] spinlock: check virtual cpu running status 2010-02-26 22:37:31 +01:00
smp.h [S390] smp/idle: call init_idle() before starting a new cpu 2011-01-05 12:47:30 +01:00
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h [S390] use generic sockios.h header file 2009-12-07 12:51:37 +01:00
sparsemem.h
spinlock.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
spinlock_types.h locking: Convert raw_rwlock to arch_rwlock 2009-12-14 23:55:32 +01:00
stat.h
statfs.h add f_flags to struct statfs(64) 2010-08-09 16:48:44 -04:00
string.h [S390] use compiler builtin versions of strlen/strcpy/strcat 2009-03-26 15:24:24 +01:00
swab.h [S390] use inline assembly contraints available with gcc 3.3.3 2010-02-26 22:37:30 +01:00
syscall.h [S390] cleanup system call parameter setup 2010-10-25 16:10:19 +02:00
sysinfo.h [S390] topology: move topology sysinfo code 2010-10-25 16:10:21 +02:00
system.h [S390] xchg/cmpxchg: move to own header file 2011-03-23 10:15:59 +01:00
tape390.h
termbits.h [S390] use generic termbits.h header file 2009-12-07 12:51:37 +01:00
termios.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
thread_info.h [S390] Add is_32bit_task() helper function 2011-01-12 09:55:25 +01:00
timer.h [S390] extend virtual timer interface by mod_virt_timer_periodic 2009-04-14 15:37:23 +02:00
timex.h s390/time: fix sched_clock() overflow 2013-01-21 11:44:58 -08:00
tlb.h S390: fix tlb flushing for page table pages 2012-04-22 16:21:45 -07:00
tlbflush.h [S390] convert old cpumask API into new one 2011-05-23 10:24:31 +02:00
topology.h [S390] topology,sched: fix cpu_coregroup_mask/cpu_book_mask definitions 2011-05-26 09:48:25 +02:00
types.h remove dma64_addr_t 2011-03-23 19:47:18 -07:00
uaccess.h [S390] uaccess: turn __access_ok() into a define 2011-05-26 09:48:25 +02:00
ucontext.h [S390] 64-bit register support for 31-bit processes 2009-10-06 10:35:10 +02:00
unaligned.h
unistd.h ns: Wire up the setns system call 2011-05-28 10:48:39 -07:00
user.h
vdso.h [S390] vdso: use ntp adjusted clock multiplier 2010-04-22 17:17:19 +02:00
vtoc.h [S390] dasd: add large volume support 2009-03-26 15:24:05 +01:00
xor.h
zcrypt.h