smpboot: Allow selfparking per cpu threads
authorThomas Gleixner <tglx@linutronix.de>
Thu, 31 Jan 2013 12:11:12 +0000 (12:11 +0000)
committerThomas Gleixner <tglx@linutronix.de>
Thu, 14 Feb 2013 14:29:37 +0000 (15:29 +0100)
commit7d7e499f7333f68b7e7f67d14b9c1480913b4afb
tree6924ef4eb2a08d7129dc1620d1a557e484df3680
parent211b0cdc7dc574e5e756bdf1cc2f4a16b7f6e07e
smpboot: Allow selfparking per cpu threads

The stop machine threads are still killed when a cpu goes offline. The
reason is that the thread is used to bring the cpu down, so it can't
be parked along with the other per cpu threads.

Allow a per cpu thread to be excluded from automatic parking, so it
can park itself once it's done

Add a create callback function as well.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Arjan van de Veen <arjan@infradead.org>
Cc: Paul Turner <pjt@google.com>
Cc: Richard Weinberger <rw@linutronix.de>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/20130131120741.553993267@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
include/linux/smpboot.h
kernel/smpboot.c