| commit | 547efeadd42a3c75e41e33c0637cba100fc18289 | |
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
| Wed, 24 May 2017 08:15:19 +0000 (24 10:15 +0200) | ||
| committer | Thomas Gleixner <tglx@linutronix.de> | |
| Fri, 26 May 2017 08:10:38 +0000 (26 10:10 +0200) | ||
| tree | 2f3e5155b620687560803ba1c252f8110e5ab51c | treesnapshot (tar.gz zip) |
| parent | c5a81c8ff816d89941fe86961b286765d6ca2f5f | commitdiff |
x86/mtrr: Remove get_online_cpus() from mtrr_save_state()
mtrr_save_state() is invoked from native_cpu_up() which is in the context
of a CPU hotplug operation and therefor calling get_online_cpus() is
pointless.
While this works in the current get_online_cpus() implementation it
prevents from converting the hotplug locking to percpu rwsems.
Remove it.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170524081547.651378834@linutronix.de
mtrr_save_state() is invoked from native_cpu_up() which is in the context
of a CPU hotplug operation and therefor calling get_online_cpus() is
pointless.
While this works in the current get_online_cpus() implementation it
prevents from converting the hotplug locking to percpu rwsems.
Remove it.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170524081547.651378834@linutronix.de
| arch/x86/kernel/cpu/mtrr/main.c | diffblobblamehistory |