Re: [PATCH] ubi: fix correct rb_tree node comparison in add_vol

2014-06-30 Thread Artem Bityutskiy
On Tue, 2014-06-24 at 09:25 +0200, Heiko Schocher wrote:
> Commit 604b592e6fd3c98f21435e1181ba7723ffc24715 ("UBI: fix rb_tree node 
> comparison in add_map")
> 
> introduced problems with attaching ubi fastmap images,
> created with older kernel.

Changed the commit message to be a bit more reader-friendly and pushed
to linux-ubifs.git, thank you!

-- 
Best Regards,
Artem Bityutskiy

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Re: [PATCH] ubi: fix correct rb_tree node comparison in add_vol

2014-06-30 Thread Artem Bityutskiy
On Tue, 2014-06-24 at 09:25 +0200, Heiko Schocher wrote:
 Commit 604b592e6fd3c98f21435e1181ba7723ffc24715 (UBI: fix rb_tree node 
 comparison in add_map)
 
 introduced problems with attaching ubi fastmap images,
 created with older kernel.

Changed the commit message to be a bit more reader-friendly and pushed
to linux-ubifs.git, thank you!

-- 
Best Regards,
Artem Bityutskiy

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Re: [PATCH] ubi: fix correct rb_tree node comparison in add_vol

2014-06-25 Thread Richard Weinberger
Am 24.06.2014 09:25, schrieb Heiko Schocher:
> Commit 604b592e6fd3c98f21435e1181ba7723ffc24715 ("UBI: fix rb_tree node 
> comparison in add_map")
> 
> introduced problems with attaching ubi fastmap images,
> created with older kernel.
> 
> As in ubi_find_av() from attach.c is
> [...]
> if (vol_id > av->vol_id)
> p = p->rb_left;
> else
> p = p->rb_right;
> 
> sync this logic also in add_vol() with this.
> 
> With this patch attaching older ubi images works again.
> 
> Signed-off-by: Heiko Schocher 

Thanks a lot for fixing this!

Acked-by: Richard Weinberger 

Thanks,
//richard
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Re: [PATCH] ubi: fix correct rb_tree node comparison in add_vol

2014-06-25 Thread Richard Weinberger
Am 24.06.2014 09:25, schrieb Heiko Schocher:
 Commit 604b592e6fd3c98f21435e1181ba7723ffc24715 (UBI: fix rb_tree node 
 comparison in add_map)
 
 introduced problems with attaching ubi fastmap images,
 created with older kernel.
 
 As in ubi_find_av() from attach.c is
 [...]
 if (vol_id  av-vol_id)
 p = p-rb_left;
 else
 p = p-rb_right;
 
 sync this logic also in add_vol() with this.
 
 With this patch attaching older ubi images works again.
 
 Signed-off-by: Heiko Schocher h...@denx.de

Thanks a lot for fixing this!

Acked-by: Richard Weinberger rich...@nod.at

Thanks,
//richard
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[PATCH] ubi: fix correct rb_tree node comparison in add_vol

2014-06-24 Thread Heiko Schocher
Commit 604b592e6fd3c98f21435e1181ba7723ffc24715 ("UBI: fix rb_tree node 
comparison in add_map")

introduced problems with attaching ubi fastmap images,
created with older kernel.

As in ubi_find_av() from attach.c is
[...]
if (vol_id > av->vol_id)
p = p->rb_left;
else
p = p->rb_right;

sync this logic also in add_vol() with this.

With this patch attaching older ubi images works again.

Signed-off-by: Heiko Schocher 

---

Cc: Artem Bityutskiy 
Cc: Richard Weinberger 
Cc: David Woodhouse 
Cc: Brian Norris 
Cc: Mike Snitzer 
Cc: Wolfgang Denk 
Cc: linux-...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org

 drivers/mtd/ubi/fastmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index b04e7d0..72f39da 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -125,7 +125,7 @@ static struct ubi_ainf_volume *add_vol(struct 
ubi_attach_info *ai, int vol_id,
parent = *p;
av = rb_entry(parent, struct ubi_ainf_volume, rb);
 
-   if (vol_id < av->vol_id)
+   if (vol_id > av->vol_id)
p = &(*p)->rb_left;
else
p = &(*p)->rb_right;
-- 
1.8.3.1

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[PATCH] ubi: fix correct rb_tree node comparison in add_vol

2014-06-24 Thread Heiko Schocher
Commit 604b592e6fd3c98f21435e1181ba7723ffc24715 (UBI: fix rb_tree node 
comparison in add_map)

introduced problems with attaching ubi fastmap images,
created with older kernel.

As in ubi_find_av() from attach.c is
[...]
if (vol_id  av-vol_id)
p = p-rb_left;
else
p = p-rb_right;

sync this logic also in add_vol() with this.

With this patch attaching older ubi images works again.

Signed-off-by: Heiko Schocher h...@denx.de

---

Cc: Artem Bityutskiy artem.bityuts...@linux.intel.com
Cc: Richard Weinberger rich...@nod.at
Cc: David Woodhouse dw...@infradead.org
Cc: Brian Norris computersforpe...@gmail.com
Cc: Mike Snitzer snit...@redhat.com
Cc: Wolfgang Denk w...@denx.de
Cc: linux-...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org

 drivers/mtd/ubi/fastmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index b04e7d0..72f39da 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -125,7 +125,7 @@ static struct ubi_ainf_volume *add_vol(struct 
ubi_attach_info *ai, int vol_id,
parent = *p;
av = rb_entry(parent, struct ubi_ainf_volume, rb);
 
-   if (vol_id  av-vol_id)
+   if (vol_id  av-vol_id)
p = (*p)-rb_left;
else
p = (*p)-rb_right;
-- 
1.8.3.1

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