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27f6b41662
linux/arch/s390/kernel
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Martin Schwidefsky 27f6b41662 s390/vtimer: rework virtual timer interface 
The current virtual timer interface is inherently per-cpu and hard to
use. The sole user of the interface is appldata which uses it to execute
a function after a specific amount of cputime has been used over all cpus.

Rework the virtual timer interface to hook into the cputime accounting.
This makes the interface independent from the CPU timer interrupts, and
makes the virtual timers global as opposed to per-cpu.
Overall the code is greatly simplified. The downside is that the accuracy
is not as good as the original implementation, but it is still good enough
for appldata.

Reviewed-by: Jan Glauber <jang@linux.vnet.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-07-20 11:15:08 +02:00
..
vdso32 s390: add various .gitignore files. 2012-05-16 14:42:41 +02:00
vdso64 s390: add various .gitignore files. 2012-05-16 14:42:41 +02:00
.gitignore s390: add various .gitignore files. 2012-05-16 14:42:41 +02:00
asm-offsets.c s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
audit.c
audit.h
base.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
bitmap.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
compat_audit.c
compat_exec_domain.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
compat_linux.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
compat_linux.h
compat_ptrace.h
compat_signal.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
compat_wrapper.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
cpcmd.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
crash_dump.c
crash.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
debug.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
diag.c
dis.c s390/dis: Add the servc instruction to the disassembler. 2012-07-20 11:15:06 +02:00
early.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ebcdic.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
entry64.S s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
entry.h s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
entry.S s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
ftrace.c
head31.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
head64.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
head_kdump.S s390/sigp: use sigp order code defines in assembly code 2012-06-05 13:23:36 +02:00
head.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ipl.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
irq.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
jump_label.c
kprobes.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
lgr.c s390/lgr: Add init check to lgr_info_log() 2012-07-20 11:15:01 +02:00
machine_kexec.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
Makefile s390: Use generic init_task 2012-05-05 13:00:25 +02:00
mcount64.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mcount.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mem_detect.c
module.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
nmi.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
os_info.c s390/smp: make absolute lowcore / cpu restart parameter accesses more robust 2012-06-14 09:09:02 +02:00
perf_cpum_cf.c s390/irq: split irq stats for cpu-measurement alert facilities 2012-05-23 17:06:52 +02:00
perf_event.c [S390] Fix build errors (fallout from system.h disintegration) 2012-03-30 09:41:12 +02:00
process.c s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
processor.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
ptrace.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
reipl64.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
reipl.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
relocate_kernel64.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
relocate_kernel.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
s390_ksyms.c
sclp.S s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
setup.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
signal.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
smp.c s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
stacktrace.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
suspend.c Disintegrate asm/system.h for S390 2012-03-28 18:30:02 +01:00
swsusp_asm64.S s390/sigp: use sigp order code defines in assembly code 2012-06-05 13:23:36 +02:00
sys_s390.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
syscalls.S
sysinfo.c s390/cpu: remove cpu "capabilities" sysfs attribute 2012-05-30 09:07:30 +02:00
time.c s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
topology.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
traps.c s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
vdso.c Disintegrate and delete asm/system.h 2012-03-28 15:58:21 -07:00
vmlinux.lds.S
vtime.c s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00