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From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
To: petkovbb@gmail.com
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] ide-tape: remove pipeline-specific code from idetape_add_chrdev_write_request
Date: Wed, 12 Mar 2008 15:31:58 +0100	[thread overview]
Message-ID: <200803121531.58649.bzolnier@gmail.com> (raw)
In-Reply-To: <20080312054156.GC4266@gollum.tnic>

On Wednesday 12 March 2008, Borislav Petkov wrote:

> > > The remaining pipeline stage allocation code is used for the next current
> > > pipeline stage (tape->merge_stage) and data buffer for an upcoming
> > > request. The so allocated pipeline stage is rewired into the tape struct
> > > thru idetape_switch_buffers() and used during the next request for
> > > copying user data into it (see e.g. idetape_chrdev_write()). In case the
> > > allocation fails, the current request is still attempted prior to failing.
> > 
> > Is this really needed now that we've removed pipeline operation for write
> > requests?
> 
> I did this simply to keep behavior changes at minimum - after removing the
> pipeline code completely this'll be simplified too.

BTW I see now how poorly I explained things the last time. :(

[ Sorry for that! ]

Our goal is not "pure" minimal behavior changes but minimal "behavior + code"
changes - IOW we are searching for the best balance for keeping both the old
behavior and code changes (and thus patch _complexity_) at the minimal level.


  parent reply	other threads:[~2008-03-12 14:18 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-09 17:10 [PATCH 0/4] ide-tape: remove pipeline functionality-v2 Borislav Petkov
2008-03-09 17:10 ` [PATCH 1/4] ide-tape: remove tape->cache_stage Borislav Petkov
2008-03-10 23:24   ` Bartlomiej Zolnierkiewicz
2008-03-11  6:40     ` Borislav Petkov
2008-03-09 17:10 ` [PATCH 2/4] ide-tape: remove pipeline-specific code from idetape_add_chrdev_write_request Borislav Petkov
2008-03-10 23:25   ` Bartlomiej Zolnierkiewicz
2008-03-12  5:41     ` Borislav Petkov
2008-03-12 13:51       ` Bartlomiej Zolnierkiewicz
2008-03-12 14:31       ` Bartlomiej Zolnierkiewicz [this message]
2008-03-09 17:10 ` [PATCH 3/4] ide-tape remove pipeline speed/control calculations Borislav Petkov
2008-03-10 23:25   ` Bartlomiej Zolnierkiewicz
2008-03-09 17:10 ` [PATCH 4/4] ide-tape: remove pipeline-specific code from idetape_add_chrdev_read_request() Borislav Petkov
2008-03-10 23:25   ` Bartlomiej Zolnierkiewicz
2008-03-12  5:58     ` Borislav Petkov
2008-03-12 13:51       ` Bartlomiej Zolnierkiewicz
2008-03-13  6:19         ` Borislav Petkov
2008-03-10 23:24 ` [PATCH 0/4] ide-tape: remove pipeline functionality-v2 Bartlomiej Zolnierkiewicz

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