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path: root/drivers/block/zram/zram_drv.c
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Diffstat (limited to 'drivers/block/zram/zram_drv.c')
-rw-r--r--drivers/block/zram/zram_drv.c26
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index debee952dcc1..558e245fab0c 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1272,6 +1272,13 @@ static int zram_remove(struct zram *zram)
}
/* zram-control sysfs attributes */
+
+/*
+ * NOTE: hot_add attribute is not the usual read-only sysfs attribute. In a
+ * sense that reading from this file does alter the state of your system -- it
+ * creates a new un-initialized zram device and returns back this device's
+ * device_id (or an error code if it fails to create a new device).
+ */
static ssize_t hot_add_show(struct class *class,
struct class_attribute *attr,
char *buf)
@@ -1286,6 +1293,7 @@ static ssize_t hot_add_show(struct class *class,
return ret;
return scnprintf(buf, PAGE_SIZE, "%d\n", ret);
}
+static CLASS_ATTR_RO(hot_add);
static ssize_t hot_remove_store(struct class *class,
struct class_attribute *attr,
@@ -1316,23 +1324,19 @@ static ssize_t hot_remove_store(struct class *class,
mutex_unlock(&zram_index_mutex);
return ret ? ret : count;
}
+static CLASS_ATTR_WO(hot_remove);
-/*
- * NOTE: hot_add attribute is not the usual read-only sysfs attribute. In a
- * sense that reading from this file does alter the state of your system -- it
- * creates a new un-initialized zram device and returns back this device's
- * device_id (or an error code if it fails to create a new device).
- */
-static struct class_attribute zram_control_class_attrs[] = {
- __ATTR(hot_add, 0400, hot_add_show, NULL),
- __ATTR_WO(hot_remove),
- __ATTR_NULL,
+static struct attribute *zram_control_class_attrs[] = {
+ &class_attr_hot_add.attr,
+ &class_attr_hot_remove.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(zram_control_class);
static struct class zram_control_class = {
.name = "zram-control",
.owner = THIS_MODULE,
- .class_attrs = zram_control_class_attrs,
+ .class_groups = zram_control_class_groups,
};
static int zram_remove_cb(int id, void *ptr, void *data)