Use DEVICE_ATTR_WO helper instead of plain DEVICE_ATTR,
which makes the code a bit shorter and easier to read.
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
mm/compaction.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/mm/compaction.c b/mm/compaction.c
index 7d41b58fb17c..b7fb991dee1b 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -2722,9 +2722,9 @@ int sysctl_compaction_handler(struct ctl_table *table, int write,
}
#if defined(CONFIG_SYSFS) && defined(CONFIG_NUMA)
-static ssize_t sysfs_compact_node(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t compact_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
int nid = dev->id;
@@ -2737,7 +2737,7 @@ static ssize_t sysfs_compact_node(struct device *dev,
return count;
}
-static DEVICE_ATTR(compact, 0200, NULL, sysfs_compact_node);
+static DEVICE_ATTR_WO(compact);
int compaction_register_node(struct node *node)
{
--
2.17.1
