---

yaml --- r: 187085 b: refs/heads/master c: 6992f53 h: refs/heads/master i: 187083: d02f516 v: v3
git-mirror · Mar 8, 2010 · 33c8324 · 33c8324
1 parent 9ed3ea2
commit 33c8324
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Showing 3 changed files with 24 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a2db6842873c8e5a70652f278d469128cb52db70
+refs/heads/master: 6992f5334995af474c2b58d010d08bc597f0f2fe
diff --git a/trunk/fs/sysfs/sysfs.h b/trunk/fs/sysfs/sysfs.h
@@ -92,9 +92,12 @@ static inline unsigned int sysfs_type(struct sysfs_dirent *sd)
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 #define sysfs_dirent_init_lockdep(sd)				\
 do {								\
-	static struct lock_class_key __key;			\
+	struct attribute *attr = sd->s_attr.attr;		\
+	struct lock_class_key *key = attr->key;			\
+	if (!key)						\
+		key = &attr->skey;				\
 								\
-	lockdep_init_map(&sd->dep_map, "s_active", &__key, 0);	\
+	lockdep_init_map(&sd->dep_map, "s_active", key, 0);	\
 } while(0)
 #else
 #define sysfs_dirent_init_lockdep(sd) do {} while(0)

diff --git a/trunk/include/linux/sysfs.h b/trunk/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);