diff options
| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-12-16 12:49:01 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-12-26 19:15:14 +0200 |
| commit | 06b68ba15671f32a3aa3bbddf04b0d2dd7fbf902 (patch) | |
| tree | 67024857173069023835148077775e8c9e381d8a /drivers/mtd/ubi/ubi.h | |
| parent | 3a8d4642861fb69b62401949e490c0bcb19ceb40 (diff) | |
UBI: create ubi_wl_entry slab on initialization
Similarly to ltree_entry_slab, it makes more sense to create
and destroy ubi_wl_entry slab on module initialization/exit.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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; |