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authorRichard Weinberger <richard@nod.at>2014-11-07 13:35:41 +0100
committerRichard Weinberger <richard@nod.at>2015-03-26 22:47:38 +0100
commit56794c0a1ae738cb4184ab27501e4d152b0b2771 (patch)
treed702c6fd6e672a4d6e48f0e20269af1312e7f4c0 /drivers/mtd
parent1841fcfd910b4e841de40e1f6bc3dad6109a4054 (diff)
UBI: Fastmap: Remove is_fm_block()
This function was added to fastmap in a very early stage to have paranoid assertions. With the current fastmap implementation this assert will never trigger as fastmap PEBs are not seen by the WL sub-system. Remove it to save us some CPU cycles. Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/ubi/fastmap-wl.c19
-rw-r--r--drivers/mtd/ubi/wl.c5
-rw-r--r--drivers/mtd/ubi/wl.h5
3 files changed, 0 insertions, 29 deletions
diff --git a/drivers/mtd/ubi/fastmap-wl.c b/drivers/mtd/ubi/fastmap-wl.c
index 067aa9042ec1..b2a665398bca 100644
--- a/drivers/mtd/ubi/fastmap-wl.c
+++ b/drivers/mtd/ubi/fastmap-wl.c
@@ -29,25 +29,6 @@ static void update_fastmap_work_fn(struct work_struct *wrk)
}
/**
- * is_fm_block - returns 1 if a PEB is currently used in a fastmap.
- * @ubi: UBI device description object
- * @pnum: the to be checked PEB
- */
-static int is_fm_block(struct ubi_device *ubi, int pnum)
-{
- int i;
-
- if (!ubi->fm)
- return 0;
-
- for (i = 0; i < ubi->fm->used_blocks; i++)
- if (ubi->fm->e[i]->pnum == pnum)
- return 1;
-
- return 0;
-}
-
-/**
* find_anchor_wl_entry - find wear-leveling entry to used as anchor PEB.
* @root: the RB-tree where to look for
*/
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 94ffdeb370c1..16214d3d57a4 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -585,7 +585,6 @@ static int schedule_erase(struct ubi_device *ubi, struct ubi_wl_entry *e,
struct ubi_work *wl_wrk;
ubi_assert(e);
- ubi_assert(!is_fm_block(ubi, e->pnum));
dbg_wl("schedule erasure of PEB %d, EC %d, torture %d",
e->pnum, e->ec, torture);
@@ -1045,8 +1044,6 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
dbg_wl("erase PEB %d EC %d LEB %d:%d",
pnum, e->ec, wl_wrk->vol_id, wl_wrk->lnum);
- ubi_assert(!is_fm_block(ubi, e->pnum));
-
err = sync_erase(ubi, e, wl_wrk->torture);
if (!err) {
/* Fine, we've erased it successfully */
@@ -1526,7 +1523,6 @@ int ubi_wl_init(struct ubi_device *ubi, struct ubi_attach_info *ai)
e->pnum = aeb->pnum;
e->ec = aeb->ec;
- ubi_assert(!is_fm_block(ubi, e->pnum));
ubi->lookuptbl[e->pnum] = e;
if (schedule_erase(ubi, e, aeb->vol_id, aeb->lnum, 0)) {
wl_entry_destroy(ubi, e);
@@ -1547,7 +1543,6 @@ int ubi_wl_init(struct ubi_device *ubi, struct ubi_attach_info *ai)
e->pnum = aeb->pnum;
e->ec = aeb->ec;
ubi_assert(e->ec >= 0);
- ubi_assert(!is_fm_block(ubi, e->pnum));
wl_tree_add(e, &ubi->free);
ubi->free_count++;
diff --git a/drivers/mtd/ubi/wl.h b/drivers/mtd/ubi/wl.h
index fbc2d8e312df..bd1f07e5ce9a 100644
--- a/drivers/mtd/ubi/wl.h
+++ b/drivers/mtd/ubi/wl.h
@@ -1,7 +1,6 @@
#ifndef UBI_WL_H
#define UBI_WL_H
#ifdef CONFIG_MTD_UBI_FASTMAP
-static int is_fm_block(struct ubi_device *ubi, int pnum);
static int anchor_pebs_avalible(struct rb_root *root);
static void update_fastmap_work_fn(struct work_struct *wrk);
static struct ubi_wl_entry *find_anchor_wl_entry(struct rb_root *root);
@@ -18,10 +17,6 @@ static struct ubi_wl_entry *may_reserve_for_fm(struct ubi_device *ubi,
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)
-{
- return 0;
-}
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,