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Merge branch 'nohz/printk-v8' into irq/core

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Conflicts:
	kernel/irq_work.c

Add support for printk in full dynticks CPU.

* Don't stop tick with irq works pending. This
fix is generally useful and concerns archs that
can't raise self IPIs.

* Flush irq works before CPU offlining.

* Introduce "lazy" irq works that can wait for the
next tick to be executed, unless it's stopped.

* Implement klogd wake up using irq work. This
removes the ad-hoc printk_tick()/printk_needs_cpu()
hooks and make it working even in dynticks mode.

Signed-off-by: Frederic Weisbecker <[email protected]>
This commit is contained in:
Frederic Weisbecker 2013-02-05 00:48:46 +01:00
commit 077931446b
8 changed files with 147 additions and 50 deletions
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1
init/Kconfig
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@ -1259,6 +1259,7 @@ config HOTPLUG
config PRINTK
default y
bool "Enable support for printk" if EXPERT
select IRQ_WORK
help
This option enables normal printk support. Removing it
eliminates most of the message strings from the kernel image