1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef UBI_WL_H 3 #define UBI_WL_H 4 #ifdef CONFIG_MTD_UBI_FASTMAP 5 static void update_fastmap_work_fn(struct work_struct *wrk); 6 static struct ubi_wl_entry *find_anchor_wl_entry(struct rb_root *root); 7 static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi); 8 static struct ubi_wl_entry *next_peb_for_wl(struct ubi_device *ubi, 9 bool need_fill); 10 static bool need_wear_leveling(struct ubi_device *ubi); 11 static void ubi_fastmap_close(struct ubi_device *ubi); 12 static inline void ubi_fastmap_init(struct ubi_device *ubi, int *count) 13 { 14 /* Reserve enough LEBs to store two fastmaps. */ 15 *count += (ubi->fm_size / ubi->leb_size) * 2; 16 INIT_WORK(&ubi->fm_work, update_fastmap_work_fn); 17 } 18 static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi, 19 struct ubi_wl_entry *e, 20 struct rb_root *root); 21 #else /* !CONFIG_MTD_UBI_FASTMAP */ 22 static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi); 23 static inline void ubi_fastmap_close(struct ubi_device *ubi) { } 24 static inline void ubi_fastmap_init(struct ubi_device *ubi, int *count) { } 25 static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi, 26 struct ubi_wl_entry *e, 27 struct rb_root *root) { 28 return e; 29 } 30 #endif /* CONFIG_MTD_UBI_FASTMAP */ 31 #endif /* UBI_WL_H */ 32