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-rw-r--r--include/linux/sysfs.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 3e8526582146..006c359e63c0 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -15,6 +15,7 @@
#include <linux/compiler.h>
#include <linux/errno.h>
#include <linux/list.h>
+#include <linux/lockdep.h>
#include <asm/atomic.h>
struct kobject;
@@ -29,8 +30,23 @@ struct attribute {
const char *name;
struct module *owner;
mode_t mode;
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+ struct lock_class_key *key;
+ struct lock_class_key skey;
+#endif
};
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#define sysfs_attr_init(attr) \
+do { \
+ static struct lock_class_key __key; \
+ \
+ (attr)->key = &__key; \
+} while(0)
+#else
+#define sysfs_attr_init(attr) do {} while(0)
+#endif
+
struct attribute_group {
const char *name;
mode_t (*is_visible)(struct kobject *,
@@ -74,6 +90,8 @@ struct bin_attribute {
struct vm_area_struct *vma);
};
+#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&bin_attr->attr)
+
struct sysfs_ops {
ssize_t (*show)(struct kobject *, struct attribute *,char *);
ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);
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