drivers/mtd/ubi/wl.h

   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 void ubi_fastmap_close(struct ubi_device *ubi);
   9 static inline void ubi_fastmap_init(struct ubi_device *ubi, int *count)
  10 {
  11         /* Reserve enough LEBs to store two fastmaps. */
  12         *count += (ubi->fm_size / ubi->leb_size) * 2;
  13         INIT_WORK(&ubi->fm_work, update_fastmap_work_fn);
  14 }
  15 static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi,
  16                                                struct ubi_wl_entry *e,
  17                                                struct rb_root *root);
  18 #else /* !CONFIG_MTD_UBI_FASTMAP */
  19 static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi);
  20 static inline void ubi_fastmap_close(struct ubi_device *ubi) { }
  21 static inline void ubi_fastmap_init(struct ubi_device *ubi, int *count) { }
  22 static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi,
  23                                                struct ubi_wl_entry *e,
  24                                                struct rb_root *root) {
  25         return e;
  26 }
  27 #endif /* CONFIG_MTD_UBI_FASTMAP */
  28 #endif /* UBI_WL_H */