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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2017-05-24 10:15:21 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-05-26 10:10:39 +0200 |
| commit | 419af25fa4d0974fd758a668c08c369c19392a47 (patch) | |
| tree | e2f780bf8a9821337e4026972f7869d77eeaf647 /drivers/hwtracing | |
| parent | cpufreq: Use cpuhp_setup_state_nocalls_cpuslocked() (diff) | |
| download | linux-419af25fa4d0974fd758a668c08c369c19392a47.tar.xz linux-419af25fa4d0974fd758a668c08c369c19392a47.zip | |
KVM/PPC/Book3S HV: Use cpuhp_setup_state_nocalls_cpuslocked()
kvmppc_alloc_host_rm_ops() holds get_online_cpus() while invoking
cpuhp_setup_state_nocalls().
cpuhp_setup_state_nocalls() 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_nocalls_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>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: kvm@vger.kernel.org
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: kvm-ppc@vger.kernel.org
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Alexander Graf <agraf@suse.com>
Link: http://lkml.kernel.org/r/20170524081547.809616236@linutronix.de
Diffstat (limited to 'drivers/hwtracing')
0 files changed, 0 insertions, 0 deletions