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UBI: fix ubi free PEBs count calculation

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The ubi->free_count should be updated with every insert/remove to/from
the ubi->free list.

Signed-off-by: Tanya Brokhman <tlinder@codeaurora.org>
Reviewed-by: Dolev Raviv <draviv@codeaurora.org>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Tanya Brokhman 2014-04-01 11:02:07 +03:00 committed by Artem Bityutskiy
parent 87ed89d21e
commit 3d21bb7667
1 changed files with 3 additions and 0 deletions
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3
drivers/mtd/ubi/wl.c
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@ -671,6 +671,8 @@ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi)
e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF); e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
self_check_in_wl_tree(ubi, e, &ubi->free); self_check_in_wl_tree(ubi, e, &ubi->free);
ubi->free_count--;
ubi_assert(ubi->free_count >= 0);
rb_erase(&e->u.rb, &ubi->free); rb_erase(&e->u.rb, &ubi->free);
return e; return e;
@ -1071,6 +1073,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
/* Give the unused PEB back */ /* Give the unused PEB back */
wl_tree_add(e2, &ubi->free); wl_tree_add(e2, &ubi->free);
ubi->free_count++;
goto out_cancel; goto out_cancel;
} }
self_check_in_wl_tree(ubi, e1, &ubi->used); self_check_in_wl_tree(ubi, e1, &ubi->used);