Hi,
I'm back on this patchset now that the necessary cputime cleanups are
merged, although more cputime consolidation as in the ctx switch and tick
path should also be done in the future, when I'll get time to cleanup
the s390 part.
So this version of the generic vtime is essentially a rebase against
latest changes (tip:sched/core). Once we get that thing in, we'll need
to handle the cputime read side when the write side is in nohz mode. Probably
no big deal but let's move step by step, as usual.
Comments?
This can be fetched from:
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
vtime/generic-v4
Frederic Weisbecker (3):
context_tracking: New context tracking susbsystem
cputime: Allow dynamic switch between tick/virtual based cputime
accounting
cputime: Generic on-demand virtual cputime accounting
arch/Kconfig | 12 +-
arch/ia64/include/asm/cputime.h | 5 +
arch/ia64/kernel/time.c | 2 +-
arch/powerpc/include/asm/cputime.h | 5 +
arch/powerpc/kernel/time.c | 2 +-
arch/s390/include/asm/cputime.h | 5 +
arch/s390/kernel/vtime.c | 2 +-
arch/x86/Kconfig | 2 +-
arch/x86/include/asm/{rcu.h => context_tracking.h} | 13 +-
arch/x86/kernel/entry_64.S | 2 +-
arch/x86/kernel/ptrace.c | 8 +-
arch/x86/kernel/signal.c | 5 +-
arch/x86/kernel/traps.c | 2 +-
arch/x86/mm/fault.c | 2 +-
include/linux/context_tracking.h | 46 ++++++
include/linux/rcupdate.h | 2 -
include/linux/sched.h | 13 +--
include/linux/vtime.h | 14 ++
init/Kconfig | 41 ++++--
kernel/Makefile | 1 +
kernel/context_tracking.c | 71 +++++++++
kernel/fork.c | 3 +-
kernel/rcutree.c | 64 +--------
kernel/sched/core.c | 9 +-
kernel/sched/cputime.c | 152 ++++++++++++++++----
kernel/time/tick-sched.c | 5 +-
26 files changed, 335 insertions(+), 153 deletions(-)
rename arch/x86/include/asm/{rcu.h => context_tracking.h} (69%)
create mode 100644 include/linux/context_tracking.h
create mode 100644 kernel/context_tracking.c
--
1.7.5.4
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