diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2017-05-16 20:42:47 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-05-23 10:01:38 +0200 |
| commit | 69a78ff226fe0241ab6cb9dd961667be477e3cf7 (patch) | |
| tree | 0492721a52622ff791f2166e4a41245e7a3550b6 /drivers/xen/manage.c | |
| parent | mm/vmscan: Adjust system_state checks (diff) | |
| download | linux-dev-69a78ff226fe0241ab6cb9dd961667be477e3cf7.tar.xz linux-dev-69a78ff226fe0241ab6cb9dd961667be477e3cf7.zip | |
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>
Diffstat (limited to 'drivers/xen/manage.c')
| -rw-r--r-- | drivers/xen/manage.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index c1ec8ee80924..9e35032351a0 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -190,6 +190,7 @@ static void do_poweroff(void) { switch (system_state) { case SYSTEM_BOOTING: + case SYSTEM_SCHEDULING: orderly_poweroff(true); break; case SYSTEM_RUNNING: |