}
DEFINE_SHOW_ATTRIBUTE(bdi_debug_stats);
-static int bdi_debug_register(struct backing_dev_info *bdi, const char *name)
+static void bdi_debug_register(struct backing_dev_info *bdi, const char *name)
{
- if (!bdi_debug_root)
- return -ENOMEM;
-
bdi->debug_dir = debugfs_create_dir(name, bdi_debug_root);
- if (!bdi->debug_dir)
- return -ENOMEM;
-
- bdi->debug_stats = debugfs_create_file("stats", 0444, bdi->debug_dir,
- bdi, &bdi_debug_stats_fops);
- if (!bdi->debug_stats) {
- debugfs_remove(bdi->debug_dir);
- bdi->debug_dir = NULL;
- return -ENOMEM;
- }
- return 0;
+ debugfs_create_file("stats", 0444, bdi->debug_dir, bdi,
+ &bdi_debug_stats_fops);
}
static void bdi_debug_unregister(struct backing_dev_info *bdi)
{
- debugfs_remove(bdi->debug_stats);
- debugfs_remove(bdi->debug_dir);
+ debugfs_remove_recursive(bdi->debug_dir);
}
#else
static inline void bdi_debug_init(void)
{
}
-static inline int bdi_debug_register(struct backing_dev_info *bdi,
+static inline void bdi_debug_register(struct backing_dev_info *bdi,
const char *name)
{
- return 0;
}
static inline void bdi_debug_unregister(struct backing_dev_info *bdi)
{