lkml.org 
[lkml]   [2002]   [Mar]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] 2.5.6-pre2 IDE cleanup 16
On Tue, Mar 05, 2002 at 04:42:33PM -0500, Jeff Garzik wrote:

> > Note that taskfiles are not being removed from IDE. Just direct (and
> > parsed and filtered) interface to userspace. Does the scsi midlayer
> > export the SCBs directly to userspace?
>
> It should.
>
> I think it's a mistake to remove the taskfile interface.
>
> It provides a way for people to directly validate the lowest level IDE
> interface, without interference from upper layers. It also provides
> access to userspace for important features that -should not- be in the
> kernel, like SMART monitoring and security features.

Well, Martin promised to reimplement it better later if there is demand
for it, and it seems there is. So I suppose it's going away only to be
replaced by something better.

There was a flamewar about this some time ago - whether the kernel
should or should not parse the taskfile access to prevent possibly
dangerous commands sent to the drive - if this is to be used for
validation, then all commands need to be allowed, which also will enable
to thin the code considerably.

--
Vojtech Pavlik
SuSE Labs
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:24    [W:0.135 / U:0.172 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site