Commit-ID: 9a301f22faac7fc2207ee49c1855a6b4ba9c5a52
Gitweb: http://git.kernel.org/tip/9a301f22faac7fc2207ee49c1855a6b4ba9c5a52
Author: Oleg Nesterov <oleg@xxxxxxxxxx>
AuthorDate: Tue, 30 Jun 2015 03:29:55 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 3 Aug 2015 12:21:27 +0200
stop_machine: Use 'cpu_stop_fn_t' where possible
Cosmetic, but 'cpu_stop_fn_t' actually makes the code more readable and
it doesn't break cscope. And most of the declarations already use it.
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: dave@xxxxxxxxxxxx
Cc: der.herr@xxxxxxx
Cc: paulmck@xxxxxxxxxxxxxxxxxx
Cc: riel@xxxxxxxxxx
Cc: viro@xxxxxxxxxxxxxxxxxx
Link: http://lkml.kernel.org/r/20150630012955.GA23937@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
include/linux/stop_machine.h | 8 ++++----
kernel/stop_machine.c | 8 ++++----
2 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 0fca276..414d924 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -112,13 +112,13 @@ static inline int try_stop_cpus(const struct cpumask *cpumask,
*
* This can be thought of as a very heavy write lock, equivalent to
* grabbing every spinlock in the kernel. */
-int stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus);
+int stop_machine(cpu_stop_fn_t fn, void *data, const struct cpumask *cpus);
-int stop_machine_from_inactive_cpu(int (*fn)(void *), void *data,
+int stop_machine_from_inactive_cpu(cpu_stop_fn_t fn, 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(cpu_stop_fn_t fn, void *data,
const struct cpumask *cpus)
{
unsigned long flags;
@@ -129,7 +129,7 @@ static inline int stop_machine(int (*fn)(void *), void *data,
return ret;
}
-static inline int stop_machine_from_inactive_cpu(int (*fn)(void *), void *data,
+static inline int stop_machine_from_inactive_cpu(cpu_stop_fn_t fn, void *data,
const struct cpumask *cpus)
{
return stop_machine(fn, data, cpus);
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index b50910d..9a70def 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -141,7 +141,7 @@ enum multi_stop_state {
};
struct multi_stop_data {
- int (*fn)(void *);
+ cpu_stop_fn_t fn;
void *data;
/* Like num_online_cpus(), but hotplug cpu uses us, so we need this. */
unsigned int num_threads;
@@ -513,7 +513,7 @@ early_initcall(cpu_stop_init);
#ifdef CONFIG_STOP_MACHINE
-static int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus)
+static int __stop_machine(cpu_stop_fn_t fn, void *data, const struct cpumask *cpus)
{
struct multi_stop_data msdata = {
.fn = fn,
@@ -546,7 +546,7 @@ static int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *c
return stop_cpus(cpu_online_mask, multi_cpu_stop, &msdata);
}
-int stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus)
+int stop_machine(cpu_stop_fn_t fn, void *data, const struct cpumask *cpus)
{
int ret;
@@ -580,7 +580,7 @@ EXPORT_SYMBOL_GPL(stop_machine);
* 0 if all executions of @fn returned 0, any non zero return value if any
* returned non zero.
*/
-int stop_machine_from_inactive_cpu(int (*fn)(void *), void *data,
+int stop_machine_from_inactive_cpu(cpu_stop_fn_t fn, void *data,
const struct cpumask *cpus)
{
struct multi_stop_data msdata = { .fn = fn, .data = data,
--
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