ich777/linux_media
1
0
Fork 0
mirror of https://github.com/tbsdtv/linux_media.git synced 2025-07-23 04:33:26 +02:00
Code Issues Packages Projects Releases Wiki Activity

stop_machine: Unexport __stop_machine()

Browse Source 
The only caller outside of stop_machine.c is _cpu_down(), it can use
stop_machine(). get_online_cpus() is fine under cpu_hotplug_begin().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: dave@stgolabs.net
Cc: der.herr@hofr.at
Cc: paulmck@linux.vnet.ibm.com
Cc: riel@redhat.com
Cc: viro@ZenIV.linux.org.uk
Link: http://lkml.kernel.org/r/20150630012951.GA23934@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Oleg Nesterov
2015-06-30 03:29:51 +02:00
committed by Ingo Molnar
parent b377c2a089
commit 7eeb088e72
3 changed files with 4 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
include/linux/stop_machine.h
View File

@@ -114,23 +114,11 @@ static inline int try_stop_cpus(const struct cpumask *cpumask,
* grabbing every spinlock in the kernel. */
int stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus);
/**
* __stop_machine: freeze the machine on all CPUs and run this function
* @fn: the function to run
* @data: the data ptr for the @fn
* @cpus: the cpus to run the @fn() on (NULL = any online cpu)
*
* Description: This is a special version of the above, which assumes cpus
* won't come or go while it's being called. Used by hotplug cpu.
*/
int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus);
int stop_machine_from_inactive_cpu(int (*fn)(void *), void *data,
const struct cpumask *cpus);
#else /* CONFIG_STOP_MACHINE && CONFIG_SMP */
static inline int __stop_machine(int (*fn)(void *), void *data,
static inline int stop_machine(int (*fn)(void *), void *data,
const struct cpumask *cpus)
{
unsigned long flags;
@@ -141,16 +129,10 @@ static inline int __stop_machine(int (*fn)(void *), void *data,
return ret;
}
static inline int stop_machine(int (*fn)(void *), void *data,
const struct cpumask *cpus)
{
return __stop_machine(fn, data, cpus);
}
static inline int stop_machine_from_inactive_cpu(int (*fn)(void *), void *data,
const struct cpumask *cpus)
{
return __stop_machine(fn, data, cpus);
return stop_machine(fn, data, cpus);
}
#endif /* CONFIG_STOP_MACHINE && CONFIG_SMP */