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authorFrederic Weisbecker <fweisbec@gmail.com>2012-10-19 16:43:41 -0400
committerFrederic Weisbecker <fweisbec@gmail.com>2012-11-18 01:01:22 +0100
commitbc6679aef673f9dcb8f718528fc3df49ff661af9 (patch)
tree870cf7742a3f26c99e2a4a209dbe4db656d6ad6b /init/Kconfig
parent8aa2accee41f7045dc904fa41d4475b2f6ffae3e (diff)
downloadlinux-bc6679aef673f9dcb8f718528fc3df49ff661af9.tar.bz2
irq_work: Make self-IPIs optable
On irq work initialization, let the user choose to define it as "lazy" or not. "Lazy" means that we don't want to send an IPI (provided the arch can anyway) when we enqueue this work but we rather prefer to wait for the next timer tick to execute our work if possible. This is going to be a benefit for non-urgent enqueuers (like printk in the future) that may prefer not to raise an IPI storm in case of frequent enqueuing on short periods of time. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
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