diff options
| author | Richard Weinberger <richard@nod.at> | 2016-05-27 09:44:34 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2016-05-27 12:30:27 +0200 |
| commit | 2fb14ff6153d69751cb2b89220a4a15ebe117b1b (patch) | |
| tree | 4e2328f6c1b5c46161c79a9a713555ed16e0d1d0 | |
| parent | eb21c4f4a7fd921e913c8418d5a7f07136a7b041 (diff) | |
| download | barebox-2fb14ff6153d69751cb2b89220a4a15ebe117b1b.tar.gz barebox-2fb14ff6153d69751cb2b89220a4a15ebe117b1b.tar.xz | |
UBI: Fastmap: Introduce may_reserve_for_fm()
...and kill another #ifdef.
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/mtd/ubi/fastmap-wl.c | 19 | ||||
| -rw-r--r-- | drivers/mtd/ubi/wl.c | 7 | ||||
| -rw-r--r-- | drivers/mtd/ubi/wl.h | 8 |
3 files changed, 28 insertions, 6 deletions
diff --git a/drivers/mtd/ubi/fastmap-wl.c b/drivers/mtd/ubi/fastmap-wl.c index 64c2a05a77..920fd5401a 100644 --- a/drivers/mtd/ubi/fastmap-wl.c +++ b/drivers/mtd/ubi/fastmap-wl.c @@ -312,3 +312,22 @@ static void ubi_fastmap_close(struct ubi_device *ubi) } kfree(ubi->fm); } + +/** + * may_reserve_for_fm - tests whether a PEB shall be reserved for fastmap. + * See find_mean_wl_entry() + * + * @ubi: UBI device description object + * @e: physical eraseblock to return + * @root: RB tree to test against. + */ +static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi, + struct ubi_wl_entry *e, + struct rb_root *root) { + if (e && !ubi->fm_disabled && !ubi->fm && + e->pnum < UBI_FM_MAX_START) + e = rb_entry(rb_next(root->rb_node), + struct ubi_wl_entry, u.rb); + + return e; +} diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index f9a1680460..ae9def668a 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -346,15 +346,10 @@ static struct ubi_wl_entry *find_mean_wl_entry(struct ubi_device *ubi, if (last->ec - first->ec < WL_FREE_MAX_DIFF) { e = rb_entry(root->rb_node, struct ubi_wl_entry, u.rb); -#ifdef CONFIG_MTD_UBI_FASTMAP /* If no fastmap has been written and this WL entry can be used * as anchor PEB, hold it back and return the second best * WL entry such that fastmap can use the anchor PEB later. */ - if (e && !ubi->fm_disabled && !ubi->fm && - e->pnum < UBI_FM_MAX_START) - e = rb_entry(rb_next(root->rb_node), - struct ubi_wl_entry, u.rb); -#endif + e = may_reserve_for_fm(ubi, e, root); } else e = find_wl_entry(ubi, root, WL_FREE_MAX_DIFF/2); diff --git a/drivers/mtd/ubi/wl.h b/drivers/mtd/ubi/wl.h index 0a832b0290..0df78be9ae 100644 --- a/drivers/mtd/ubi/wl.h +++ b/drivers/mtd/ubi/wl.h @@ -11,6 +11,9 @@ static inline void ubi_fastmap_init(struct ubi_device *ubi, int *count) /* Reserve enough LEBs to store two fastmaps. */ *count += (ubi->fm_size / ubi->leb_size) * 2; } +static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi, + struct ubi_wl_entry *e, + struct rb_root *root); #else /* !CONFIG_MTD_UBI_FASTMAP */ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi); static inline int is_fm_block(struct ubi_device *ubi, int pnum) @@ -19,5 +22,10 @@ static inline int is_fm_block(struct ubi_device *ubi, int pnum) } static inline void ubi_fastmap_close(struct ubi_device *ubi) { } static inline void ubi_fastmap_init(struct ubi_device *ubi, int *count) { } +static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi, + struct ubi_wl_entry *e, + struct rb_root *root) { + return e; +} #endif /* CONFIG_MTD_UBI_FASTMAP */ #endif /* UBI_WL_H */ |