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From: Pavel Machek <pavel@suse.cz>
To: Patrick Mochel <mochel@osdl.org>
Cc: torvalds@osdl.org, kernel list <linux-kernel@vger.kernel.org>
Subject: Re: [PM] Patrick: which part of "maintainer" and "peer review" needs explaining to you?
Date: Mon, 25 Aug 2003 11:52:32 +0200	[thread overview]
Message-ID: <20030825095232.GD3020@elf.ucw.cz> (raw)
In-Reply-To: <Pine.LNX.4.33.0308221454420.2310-100000@localhost.localdomain>

Hi!

> > > Secondly, you can actually remove the second command line parameter 
> > > ("noresume") by simply specifying a NULL partition to this parameter. It 
> > > requires about a 5-line change, and makes things simpler. 
> > 
> > You'd better not. You are expected to have one "resume=/foo/bar"
> > specified as append in lilo. You want to able to say noresume and do
> > one boot without resuming. Turning resume with
> > "resume=/dev/nonexistent" would be playing roulete with command line
> > argument order.
> 
> AFAIK, you could have
> 
> resume=/dev/hda3 always appended to your command line. Should you suspend 
> and not want to resume, you should be able to manually add
> 
> "resume=" on the command line after the above, and have the setup function 
> called again, which would reset it to NULL, thereby keeping the same 

I'm not sure if it is easy to guarantee that you are adding *after*
parameters automatically appended with LILO.

> > > -EAGAIN allows the drivers/devices that really need special care to 
> > > specify it. Otherwise, we'll end up calling ->suspend() twice for power 
> > > down for each device (those that can do w/ interrupts enabled and those 
> > > that need interrupts disabled), which also requires every single driver to 
> > > check whether or not interrupts are enabled, instead of just those that 
> > > need it. 
> > 
> > No, you should have simply let it alone and pass "level" parameter
> > telling driver if interrupts were disabled or not. No need to
> > constantly change API while trying to stabilise the code.
> 
> ...and modify each driver to check for it? 

Well, those drivers should have the checks already, otherwise they are
buggy, but I guess I see your point now.
								Pavel
-- 
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]

  parent reply	other threads:[~2003-08-25  9:52 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-08-22 21:08 [PM] Patrick: which part of "maintainer" and "peer review" needs explaining to you? Pavel Machek
2003-08-22 21:25 ` Patrick Mochel
2003-08-22 21:53   ` Pavel Machek
2003-08-22 22:05     ` Patrick Mochel
2003-08-23  1:03       ` Nigel Cunningham
2003-08-23 16:22       ` Benjamin Herrenschmidt
2003-08-25 19:05         ` [PM] powering down special devices Patrick Mochel
2003-08-25 19:53           ` Benjamin Herrenschmidt
2003-08-25  9:52       ` Pavel Machek [this message]
2003-08-22 22:10   ` [PM] Patrick: which part of "maintainer" and "peer review" needs explaining to you? Pavel Machek
2003-08-22 22:13     ` Patrick Mochel
2003-08-22 22:17       ` Patrick Mochel
2003-08-22 22:36   ` Pavel Machek
2003-08-23 10:47   ` Russell King
2003-08-24 11:54     ` Russell King
2003-08-26 15:39       ` [PM] Config Options Patrick Mochel
2003-08-24 12:08     ` [PM] Patrick: which part of "maintainer" and "peer review" needs explaining to you? Russell King
2003-08-25 15:47     ` Patrick Mochel
2003-08-25 16:27       ` Russell King
2003-08-25 16:57         ` Matt Porter
2003-08-25 17:14           ` Russell King
2003-08-25 17:34             ` Matt Porter
2003-08-28 15:38         ` Platform Devices Patrick Mochel
2003-09-01 12:02         ` [PM] Patrick: which part of "maintainer" and "peer review" needs explaining to you? Pavel Machek
2003-09-02 17:41           ` Jens Axboe
2003-09-09 20:19             ` Benjamin Herrenschmidt
2003-09-09 20:24               ` Jens Axboe
2003-09-09 21:43               ` Patrick Mochel
2003-09-09 22:54                 ` Pavel Machek
2003-09-09 23:07                   ` Patrick Mochel
2003-09-09 23:07                     ` [PM] Passing suspend level down to drivers Pavel Machek
2003-09-09 23:23                       ` Patrick Mochel
2003-09-10  0:06                         ` Pavel Machek
2003-09-10  6:12                       ` Stephen Rothwell
2003-09-10 11:48                         ` Alan Cox
2003-09-09 23:15                     ` [PM] Patrick: which part of "maintainer" and "peer review" needs explaining to you? Alan Cox
2003-09-09 22:56               ` Pavel Machek
2003-08-25 17:16       ` Russell King
2003-08-22 22:04 ` Timothy Miller

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