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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2017-05-24 10:15:25 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-05-26 10:10:40 +0200 |
| commit | fe2a5cd8aa038e2b02fda983afc2083e94c04b4f (patch) | |
| tree | 5d8e9b8dda9983e87444cacaabbc1801e9f3b183 /arch/s390/kernel/crash_dump.c | |
| parent | 04b247c2ebdd6ba1c46c7c22546229a89760b43a (diff) | |
| download | linux-fe2a5cd8aa038e2b02fda983afc2083e94c04b4f.tar.bz2 | |
ARM/hw_breakpoint: Use cpuhp_setup_state_cpuslocked()
arch_hw_breakpoint_init() holds get_online_cpus() while registerring the
hotplug callbacks.
cpuhp_setup_state() invokes get_online_cpus() as well. This is correct, but
prevents the conversion of the hotplug locking to a percpu rwsem.
Use cpuhp_setup_state_cpuslocked() to avoid the nested call. Convert
*_online_cpus() to the new interfaces while at it.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20170524081548.170940729@linutronix.de
Diffstat (limited to 'arch/s390/kernel/crash_dump.c')
0 files changed, 0 insertions, 0 deletions