From: Artem Bityutskiy <dedekind@infradead.org>
To: Sidney Amani <seed@uffs.org>
Cc: Corentin Chary <corentincj@iksaif.net>, linux-mtd@lists.infradead.org
Subject: Re: [PATCH] UBI: ioctl instead of CONFIG_MTD_UBI_DEBUG_USERSPACE_IO
Date: Tue, 27 Jan 2009 15:06:59 +0200 [thread overview]
Message-ID: <1233061619.7085.14.camel@localhost.localdomain> (raw)
In-Reply-To: <1233047506-30435-1-git-send-email-seed@uffs.org>
On Tue, 2009-01-27 at 10:11 +0100, Sidney Amani wrote:
> Introduce a new ioctl UBI_IOCSETPROP to set properties
> on a volume. Also add the first property:
> UBI_PROP_DIRECT_WRITE, this property is used to set the
> ability to use direct writes in userspace
>
> Signed-off-by: Sidney Amani <seed@uffs.org>
> Signed-off-by: Corentin Chary <corentincj@iksaif.net>
But I have to warn you, that now you are responsible for writing
eraseblocks properly:
1. Sequentially, from the beginning to the end.
2. Writes have to be aligned to min I/O unit size
3. You cannot write more than once to the same place
Be careful.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
next prev parent reply other threads:[~2009-01-27 13:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-27 9:11 [PATCH] UBI: ioctl instead of CONFIG_MTD_UBI_DEBUG_USERSPACE_IO Sidney Amani
2009-01-27 12:59 ` Artem Bityutskiy
2009-01-27 13:06 ` Artem Bityutskiy [this message]
2009-01-27 14:18 ` Corentin Chary
2009-01-30 7:40 ` Artem Bityutskiy
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