diff options
Diffstat (limited to 'drivers/mtd/ubi/ubi.h')
| -rw-r--r-- | drivers/mtd/ubi/ubi.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 0f2ea81b312..b7c93173e77 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -98,6 +98,22 @@ extern int ubi_devices_cnt; extern struct ubi_device *ubi_devices[]; /** + * struct ubi_wl_entry - wear-leveling entry. + * @rb: link in the corresponding RB-tree + * @ec: erase counter + * @pnum: physical eraseblock number + * + * This data structure is used in the WL unit. Each physical eraseblock has a + * corresponding &struct wl_entry object which may be kept in different + * RB-trees. See WL unit for details. + */ +struct ubi_wl_entry { + struct rb_node rb; + int ec; + int pnum; +}; + +/** * struct ubi_ltree_entry - an entry in the lock tree. * @rb: links RB-tree nodes * @vol_id: volume ID of the locked logical eraseblock @@ -382,6 +398,7 @@ struct ubi_device { }; extern struct kmem_cache *ubi_ltree_slab; +extern struct kmem_cache *ubi_wl_entry_slab; extern struct file_operations ubi_cdev_operations; extern struct file_operations ubi_vol_cdev_operations; extern struct class *ubi_class; |