From: Artem Bityutskiy <dedekind1@gmail.com>
To: Stefani Seibold <stefani@seibold.net>
Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>,
"Enzinger,
Robert \(EXT-Other - DE/Munich\)" <robert.enzinger.ext@nsn.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
David Woodhouse <dwmw2@infradead.org>
Subject: Re: [PATCH] Add quick erase format option
Date: Sun, 29 Aug 2010 15:20:24 +0300 [thread overview]
Message-ID: <1283084424.2131.40.camel@brekeke> (raw)
In-Reply-To: <1283081435.2131.24.camel@brekeke>
On Sun, 2010-08-29 at 14:30 +0300, Artem Bityutskiy wrote:
> The reason why this flushing is needed is that we want to make sure
> that
> there are no PEBs which belonged to a volume with the same ID. Indeed,
> imaging you have volume 5 with many used LEBs. Then you remove this
> volume, so that all its LEBs are scheduled for erasure. Then you
> create
> a new volume with the same ID = 5. If we do not flush the queue, we
> may
> end up with rubbish from the older volume 5 in the new one.
Err, it is important to say that we'll end up with the rubbish if we
have an unclean reboot after the new volume with ID 5 is created, but
before all PEBs belonging to the old volume with ID 5 are erased.
Hopefully, my explanation is not too messy :-)
--
Best Regards,
Artem Bityutskiy (Битюцкий Артём)
WARNING: multiple messages have this Message-ID (diff)
From: Artem Bityutskiy <dedekind1@gmail.com>
To: Stefani Seibold <stefani@seibold.net>
Cc: David Woodhouse <dwmw2@infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
Artem Bityutskiy <Artem.Bityutskiy@nokia.com>,
"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
"Enzinger,
Robert (EXT-Other - DE/Munich)" <robert.enzinger.ext@nsn.com>
Subject: Re: [PATCH] Add quick erase format option
Date: Sun, 29 Aug 2010 15:20:24 +0300 [thread overview]
Message-ID: <1283084424.2131.40.camel@brekeke> (raw)
In-Reply-To: <1283081435.2131.24.camel@brekeke>
On Sun, 2010-08-29 at 14:30 +0300, Artem Bityutskiy wrote:
> The reason why this flushing is needed is that we want to make sure
> that
> there are no PEBs which belonged to a volume with the same ID. Indeed,
> imaging you have volume 5 with many used LEBs. Then you remove this
> volume, so that all its LEBs are scheduled for erasure. Then you
> create
> a new volume with the same ID = 5. If we do not flush the queue, we
> may
> end up with rubbish from the older volume 5 in the new one.
Err, it is important to say that we'll end up with the rubbish if we
have an unclean reboot after the new volume with ID 5 is created, but
before all PEBs belonging to the old volume with ID 5 are erased.
Hopefully, my explanation is not too messy :-)
--
Best Regards,
Artem Bityutskiy (Битюцкий Артём)
next prev parent reply other threads:[~2010-08-29 12:20 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-09 8:25 [PATCH] Add quick erase format option stefani
2010-08-09 8:37 ` David Woodhouse
2010-08-09 8:37 ` David Woodhouse
2010-08-09 8:52 ` Stefani Seibold
2010-08-09 8:52 ` Stefani Seibold
2010-08-09 11:29 ` Artem Bityutskiy
2010-08-09 11:29 ` Artem Bityutskiy
2010-08-09 13:37 ` Stefani Seibold
2010-08-09 13:37 ` Stefani Seibold
2010-08-09 13:54 ` Stefani Seibold
2010-08-09 13:54 ` Stefani Seibold
2010-08-29 11:30 ` Artem Bityutskiy
2010-08-29 11:30 ` Artem Bityutskiy
2010-08-29 12:20 ` Artem Bityutskiy [this message]
2010-08-29 12:20 ` Artem Bityutskiy
2010-08-31 6:42 ` Stefani Seibold
2010-08-31 6:42 ` Stefani Seibold
2010-09-01 0:47 ` Artem Bityutskiy
2010-09-01 0:47 ` Artem Bityutskiy
2010-09-02 6:53 ` Stefani Seibold
2010-09-02 6:53 ` Stefani Seibold
2010-09-02 10:58 ` Artem Bityutskiy
2010-09-02 10:58 ` Artem Bityutskiy
2010-09-02 11:42 ` Stefani Seibold
2010-09-02 11:42 ` Stefani Seibold
2018-06-20 5:38 ` Richard Weinberger
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