One more RCU commit for 3.8
Hello, Ingo,
Could you please pull one more commit? This is an update to Frederic Weisbecker's context-tracking subsystem that is another stepping stone towards adaptive-idle and tickless userspace execution. This has been subjected to -next testing. It does give two checkpatch.pl errors, but these are on cpp macro definitions used within assembly code -- and following checkpatch.pl's suggestions would result in assembler errors. (I have reported this to Andy Whitcroft, checkpatch.pl's maintainer.)
These changes are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next
Thanx, Paul
---------------->
Frederic Weisbecker (1):
context_tracking: New context tracking susbsystem
arch/Kconfig | 15 ++--
arch/x86/Kconfig | 2 +-
arch/x86/include/asm/{rcu.h => context_tracking.h} | 15 ++--
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 | 18 ++++
include/linux/rcupdate.h | 2 -
init/Kconfig | 28 ++++----
kernel/Makefile | 1 +
kernel/context_tracking.c | 83 ++++++++++++++++++++
kernel/rcutree.c | 64 +---------------
kernel/sched/core.c | 11 ++-
15 files changed, 150 insertions(+), 108 deletions(-)
rename arch/x86/include/asm/{rcu.h => context_tracking.h} (63%)
create mode 100644 include/linux/context_tracking.h
create mode 100644 kernel/context_tracking.cQuoted 30 lines · Paul E. McKenney
Hello, Ingo,
Could you please pull one more commit? This is an update to Frederic Weisbecker's context-tracking subsystem that is another stepping stone towards adaptive-idle and tickless userspace execution. This has been subjected to -next testing. It does give two checkpatch.pl errors, but these are on cpp macro definitions used within assembly code -- and following checkpatch.pl's suggestions would result in assembler errors. (I have reported this to Andy Whitcroft, checkpatch.pl's maintainer.)
These changes are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.gitrcu/nextThanx, Paul
---------------->
Frederic Weisbecker (1):
context_tracking: New context tracking susbsystemarch/Kconfig | 15 ++-- arch/x86/Kconfig | 2 +- arch/x86/include/asm/{rcu.h => context_tracking.h} | 15 ++-- 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 | 18 ++++ include/linux/rcupdate.h | 2 - init/Kconfig | 28 ++++----
Quoted 8 lines
kernel/Makefile | 1 +
kernel/context_tracking.c | 83 ++++++++++++++++++++
kernel/rcutree.c | 64 +---------------
kernel/sched/core.c | 11 ++-
15 files changed, 150 insertions(+), 108 deletions(-)
rename arch/x86/include/asm/{rcu.h => context_tracking.h} (63%)
create mode 100644 include/linux/context_tracking.h
create mode 100644 kernel/context_tracking.cPulled it and pushed it out earlier this week.
One issue I wanted to raise on a bit wider forum was the introduction of the (small) kernel/context_tracking.c subsystem.
It makes sense to me, but I've Cc:-ed Linus and Andrew, in case they have a different opinion.
Thanks,
Ingo
Quoted 42 lines · Ingo Molnar
Quoted 30 lines · Paul E. McKenney
Hello, Ingo,
Could you please pull one more commit? This is an update to Frederic Weisbecker's context-tracking subsystem that is another stepping stone towards adaptive-idle and tickless userspace execution. This has been subjected to -next testing. It does give two checkpatch.pl errors, but these are on cpp macro definitions used within assembly code -- and following checkpatch.pl's suggestions would result in assembler errors. (I have reported this to Andy Whitcroft, checkpatch.pl's maintainer.)
These changes are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.gitrcu/nextThanx, Paul
---------------->
Frederic Weisbecker (1):
context_tracking: New context tracking susbsystemarch/Kconfig | 15 ++-- arch/x86/Kconfig | 2 +- arch/x86/include/asm/{rcu.h => context_tracking.h} | 15 ++-- 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 | 18 ++++ include/linux/rcupdate.h | 2 - init/Kconfig | 28 ++++----Quoted 8 lines
kernel/Makefile | 1 + kernel/context_tracking.c | 83 ++++++++++++++++++++ kernel/rcutree.c | 64 +--------------- kernel/sched/core.c | 11 ++- 15 files changed, 150 insertions(+), 108 deletions(-) rename arch/x86/include/asm/{rcu.h => context_tracking.h} (63%) create mode 100644 include/linux/context_tracking.h create mode 100644 kernel/context_tracking.c
Quoted 7 lines
Pulled it and pushed it out earlier this week.
One issue I wanted to raise on a bit wider forum was the introduction of the (small)
kernel/context_tracking.csubsystem.It makes sense to me, but I've Cc:-ed Linus and Andrew, in case they have a different opinion.
And it does appear that Frederic and I have a bit more explaining to do. ;-)
Thanx, Paul
2012/12/10 Paul E. McKenney <[email protected]>:
Quoted 45 lines · Ingo Molnar
Quoted 44 lines · Paul E. McKenney
Quoted 31 lines
Hello, Ingo,
Could you please pull one more commit? This is an update to Frederic Weisbecker's context-tracking subsystem that is another stepping stone towards adaptive-idle and tickless userspace execution. This has been subjected to -next testing. It does give two checkpatch.pl errors, but these are on cpp macro definitions used within assembly code -- and following checkpatch.pl's suggestions would result in assembler errors. (I have reported this to Andy Whitcroft, checkpatch.pl's maintainer.)
These changes are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.gitrcu/nextThanx, Paul
---------------->
Frederic Weisbecker (1):
context_tracking: New context tracking susbsystemarch/Kconfig | 15 ++-- arch/x86/Kconfig | 2 +- arch/x86/include/asm/{rcu.h => context_tracking.h} | 15 ++-- 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 | 18 ++++ include/linux/rcupdate.h | 2 - init/Kconfig | 28 ++++----Quoted 8 lines
kernel/Makefile | 1 + kernel/context_tracking.c | 83 ++++++++++++++++++++ kernel/rcutree.c | 64 +--------------- kernel/sched/core.c | 11 ++- 15 files changed, 150 insertions(+), 108 deletions(-) rename arch/x86/include/asm/{rcu.h => context_tracking.h} (63%) create mode 100644 include/linux/context_tracking.h create mode 100644 kernel/context_tracking.cPulled it and pushed it out earlier this week.
Quoted 7 lines
Quoted 5 lines
One issue I wanted to raise on a bit wider forum was the introduction of the (small)
kernel/context_tracking.csubsystem.It makes sense to me, but I've Cc:-ed Linus and Andrew, in case they have a different opinion.
And it does appear that Frederic and I have a bit more explaining to do. ;-)
Right :-)
Andrew strongly suggested us to give some more description of that thing and the role and semantics of the new APIs. I indeed overlooked that part. I'll send a patch soon.