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From"Miquel van Smoorenburg" <>
SubjectRe: dd PATCH: add conv=direct
DateThu, 8 Apr 2004 11:44:59 +0000 (UTC)
In article <20040407220928.GI2814@hexapodia.org>,
Andy Isaacson  <adi@hexapodia.org> wrote:
>On Wed, Apr 07, 2004 at 05:02:24PM -0500, Nathan Straz wrote:
>> On Tue, Apr 06, 2004 at 05:03:58PM -0500, Andy Isaacson wrote:
>> > Linux-kernel:  is this patch horribly wrong?
>> ...
>> > to force O_DIRECT.  The enclosed patch adds a "conv=direct" flag to
>> > enable this usage.
>> 
>> Adding the functionality to conv= doesn't seem right to me.  conv= is
>> for converting the data in some way.  This is just changing the way data
>> is written.  Right?
>
>There's already conv=notrunc which means "open without O_TRUNC".  I
>agree that it's a nonintuitive interface, but then, the entire dd(1)
>command line is.

Well as you already added iflags and oflags, it makes more sense to
use those. oflags=fsync makes more sense to me than conv=fsync.
Likewise oflags=notrunc.

Mike.

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