2014-04-01 08:02:21

by Tanya Brokhman

[permalink] [raw]
Subject: [RFC/PATCH] mtd: ubi: Fix ubi free PEBs count calculation

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

Signed-off-by: Tanya Brokhman <[email protected]>

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 9a36f78..ca74d19 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -690,6 +690,8 @@ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi)

e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
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);

return e;
@@ -1090,6 +1092,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,

/* Give the unused PEB back */
wl_tree_add(e2, &ubi->free);
+ ubi->free_count++;
goto out_cancel;
}
self_check_in_wl_tree(ubi, e1, &ubi->used);
--
1.7.6
--
QUALCOMM ISRAEL, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundat


2014-04-07 05:21:53

by Dolev Raviv

[permalink] [raw]
Subject: RE: [RFC/PATCH] mtd: ubi: Fix ubi free PEBs count calculation

Reviewed-by: Dolev Raviv <[email protected]>

Thanks,
Dolev
--
QUALCOMM ISRAEL, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation

-----Original Message-----
From: linux-mtd [mailto:[email protected]] On Behalf Of
Tanya Brokhman
Sent: Tuesday, April 01, 2014 11:02 AM
To: [email protected]
Cc: [email protected]; open list; Tanya Brokhman
Subject: [RFC/PATCH] mtd: ubi: Fix ubi free PEBs count calculation

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

Signed-off-by: Tanya Brokhman <[email protected]>

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index
9a36f78..ca74d19 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -690,6 +690,8 @@ static struct ubi_wl_entry *get_peb_for_wl(struct
ubi_device *ubi)

e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
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);

return e;
@@ -1090,6 +1092,7 @@ static int wear_leveling_worker(struct ubi_device
*ubi, struct ubi_work *wrk,

/* Give the unused PEB back */
wl_tree_add(e2, &ubi->free);
+ ubi->free_count++;
goto out_cancel;
}
self_check_in_wl_tree(ubi, e1, &ubi->used);
--
1.7.6
--
QUALCOMM ISRAEL, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundat


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2014-04-07 13:18:41

by Richard Weinberger

[permalink] [raw]
Subject: Re: [RFC/PATCH] mtd: ubi: Fix ubi free PEBs count calculation

On Tue, Apr 1, 2014 at 10:02 AM, Tanya Brokhman <[email protected]> wrote:
> The ubi->free_count should be updated with every insert/remove to/from
> the ubi->free list.
>
> Signed-off-by: Tanya Brokhman <[email protected]>
>
> diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
> index 9a36f78..ca74d19 100644
> --- a/drivers/mtd/ubi/wl.c
> +++ b/drivers/mtd/ubi/wl.c
> @@ -690,6 +690,8 @@ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi)
>
> e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
> 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);
>
> return e;
> @@ -1090,6 +1092,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
>
> /* Give the unused PEB back */
> wl_tree_add(e2, &ubi->free);
> + ubi->free_count++;
> goto out_cancel;
> }
> self_check_in_wl_tree(ubi, e1, &ubi->used);
> --

Acked-by: Richard Weinberger <[email protected]>

--
Thanks,
//richard

2014-04-08 14:11:36

by Artem Bityutskiy

[permalink] [raw]
Subject: Re: [RFC/PATCH] mtd: ubi: Fix ubi free PEBs count calculation

On Tue, 2014-04-01 at 11:02 +0300, Tanya Brokhman wrote:
> The ubi->free_count should be updated with every insert/remove to/from
> the ubi->free list.
>
> Signed-off-by: Tanya Brokhman <[email protected]>

Pushed to linux-ubifs.git / master, thanks!

--
Best Regards,
Artem Bityutskiy