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authorAndi Kleen <andi@firstfloor.org>2010-01-05 12:47:58 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-07 17:04:47 -0800
commitc9be0a36f9bf392a7984473124a67a12964df11f (patch)
tree23fcf49f277d9a093b2b29831811219410ad7b05 /kernel/perf_event.c
parent3d03ba4d1dd2246adff5a9ff1194a539b3bc05a7 (diff)
sysdev: Pass attribute in sysdev_class attributes show/store
Passing the attribute to the low level IO functions allows all kinds of cleanups, by sharing low level IO code without requiring an own function for every piece of data. Also drivers can extend the attributes with own data fields and use that in the low level function. Similar to sysdev_attributes and normal attributes. This is a tree-wide sweep, converting everything in one go. No functional changes in this patch other than passing the new argument everywhere. Tested on x86, the non x86 parts are uncompiled. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'kernel/perf_event.c')
-rw-r--r--kernel/perf_event.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 8e352c756ba7..f40560b86544 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -5481,13 +5481,16 @@ void __init perf_event_init(void)
register_cpu_notifier(&perf_cpu_nb);
}
-static ssize_t perf_show_reserve_percpu(struct sysdev_class *class, char *buf)
+static ssize_t perf_show_reserve_percpu(struct sysdev_class *class,
+ struct sysdev_class_attribute *attr,
+ char *buf)
{
return sprintf(buf, "%d\n", perf_reserved_percpu);
}
static ssize_t
perf_set_reserve_percpu(struct sysdev_class *class,
+ struct sysdev_class_attribute *attr,
const char *buf,
size_t count)
{
@@ -5516,13 +5519,17 @@ perf_set_reserve_percpu(struct sysdev_class *class,
return count;
}
-static ssize_t perf_show_overcommit(struct sysdev_class *class, char *buf)
+static ssize_t perf_show_overcommit(struct sysdev_class *class,
+ struct sysdev_class_attribute *attr,
+ char *buf)
{
return sprintf(buf, "%d\n", perf_overcommit);
}
static ssize_t
-perf_set_overcommit(struct sysdev_class *class, const char *buf, size_t count)
+perf_set_overcommit(struct sysdev_class *class,
+ struct sysdev_class_attribute *attr,
+ const char *buf, size_t count)
{
unsigned long val;
int err;