Linus Torvalds 620e77533f Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ... Pull RCU changes from Ingo Molnar: 0. 'idle RCU': Adds RCU APIs that allow non-idle tasks to enter RCU idle mode and provides x86 code to make use of them, allowing RCU to treat user-mode execution as an extended quiescent state when the new RCU_USER_QS kernel configuration parameter is specified. (Work is in progress to port this to a few other architectures, but is not part of this series.) 1. A fix for a latent bug that has been in RCU ever since the addition of CPU stall warnings. This bug results in false-positive stall warnings, but thus far only on embedded systems with severely cut-down userspace configurations. 2. Further reductions in latency spikes for huge systems, along with additional boot-time adaptation to the actual hardware. This is a large change, as it moves RCU grace-period initialization and cleanup, along with quiescent-state forcing, from softirq to a kthread. However, it appears to be in quite good shape (famous last words). 3. Updates to documentation and rcutorture, the latter category including keeping statistics on CPU-hotplug latencies and fixing some initialization-time races. 4. CPU-hotplug fixes and improvements. 5. Idle-loop fixes that were omitted on an earlier submission. 6. Miscellaneous fixes and improvements In certain RCU configurations new kernel threads will show up (rcu_bh, rcu_sched), showing RCU processing overhead. * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (90 commits) rcu: Apply micro-optimization and int/bool fixes to RCU's idle handling rcu: Userspace RCU extended QS selftest x86: Exit RCU extended QS on notify resume x86: Use the new schedule_user API on userspace preemption rcu: Exit RCU extended QS on user preemption rcu: Exit RCU extended QS on kernel preemption after irq/exception x86: Exception hooks for userspace RCU extended QS x86: Unspaghettize do_general_protection() x86: Syscall hooks for userspace RCU extended QS rcu: Switch task's syscall hooks on context switch rcu: Ignore userspace extended quiescent state by default rcu: Allow rcu_user_enter()/exit() to nest rcu: Settle config for userspace extended quiescent state rcu: Make RCU_FAST_NO_HZ handle adaptive ticks rcu: New rcu_user_enter_after_irq() and rcu_user_exit_after_irq() APIs rcu: New rcu_user_enter() and rcu_user_exit() APIs ia64: Add missing RCU idle APIs on idle loop xtensa: Add missing RCU idle APIs on idle loop score: Add missing RCU idle APIs on idle loop parisc: Add missing RCU idle APIs on idle loop ...		2012-10-01 10:16:42 -07:00
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drivers	rcu: Switch task's syscall hooks on context switch	2012-09-26 15:47:02 +02:00
include	um: Preinclude include/linux/kern_levels.h	2012-09-27 20:20:09 +02:00
kernel	um: kill thread->forking	2012-09-27 18:04:55 +02:00
os-Linux	uml: fix compile error in deliver_alarm()	2012-09-05 19:40:59 -07:00
scripts	um: Preinclude include/linux/kern_levels.h	2012-09-27 20:20:09 +02:00
sys-ia64
sys-ppc
.gitignore
defconfig	Merge branch 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml	2012-08-01 16:45:02 -07:00
Kconfig.char
Kconfig.common	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-05-24 13:29:46 -07:00
Kconfig.debug
Kconfig.net
Kconfig.rest
Kconfig.um	timers: Fixup the Kconfig consolidation fallout	2012-05-21 23:43:46 +02:00
Makefile	kbuild: link of vmlinux moved to a script	2012-05-05 21:19:33 +02:00
Makefile-ia64
Makefile-os-Linux
Makefile-ppc
Makefile-skas