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authorThomas Gleixner <tglx@linutronix.de>2017-05-16 20:42:47 +0200
committerIngo Molnar <mingo@kernel.org>2017-05-23 10:01:38 +0200
commit69a78ff226fe0241ab6cb9dd961667be477e3cf7 (patch)
tree0492721a52622ff791f2166e4a41245e7a3550b6 /init
parentc6202adf3a0969514299cf10ff07376a84ad09bb (diff)
downloadlinux-69a78ff226fe0241ab6cb9dd961667be477e3cf7.tar.bz2
init: Introduce SYSTEM_SCHEDULING state
might_sleep() debugging and smp_processor_id() debugging should be active right after the scheduler starts working. The init task can invoke smp_processor_id() from preemptible context as it is pinned on the boot cpu until sched_smp_init() removes the pinning and lets it schedule on all non isolated cpus. Add a new state which allows to enable those checks earlier and add it to the xen do_poweroff() function. No functional change. Tested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/20170516184736.196214622@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
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