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 if (ubi->fm_disabled) 15 ubi->fm_pool_rsv_cnt = 0; 16 /* Reserve enough LEBs to store two fastmaps and to fill pools. */ 17 *count += (ubi->fm_size / ubi->leb_size) * 2 + ubi->fm_pool_rsv_cnt; 18 INIT_WORK(&ubi->fm_work, update_fastmap_work_fn); 19 } 20 static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi, 21 struct ubi_wl_entry *e, 22 struct rb_root *root); 23 #else /* !CONFIG_MTD_UBI_FASTMAP */ 24 static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi); 25 static inline void ubi_fastmap_close(struct ubi_device *ubi) { } 26 static inline void ubi_fastmap_init(struct ubi_device *ubi, int *count) { } 27 static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi, 28 struct ubi_wl_entry *e, 29 struct rb_root *root) { 30 return e; 31 } 32 #endif /* CONFIG_MTD_UBI_FASTMAP */ 33 #endif /* UBI_WL_H */ 34