From: "H. Peter Anvin" <hpa@zytor.com>
To: David Miller <davem@davemloft.net>
Cc: anton@samba.org, hch@infradead.org, arjan@infradead.org,
zippel@linux-m68k.org, dmlb2000@gmail.com,
linux-kernel@vger.kernel.org, gdb@sourceware.org
Subject: Re: PAGE_SIZE Availability Inconsistency
Date: Thu, 08 Mar 2007 20:31:05 -0800 [thread overview]
Message-ID: <45F0E309.70403@zytor.com> (raw)
In-Reply-To: <20070308.202718.68040662.davem@davemloft.net>
David Miller wrote:
> From: "H. Peter Anvin" <hpa@zytor.com>
> Date: Thu, 08 Mar 2007 20:18:28 -0800
>
>> Anton Blanchard wrote:
>>> The other option is to create a v3 swap format that doesnt use any
>>> PAGE_SIZE parameters.
>> The best thing to do would be to look for the magic both at PAGE_SIZE
>> (for compatibility) and MIN_PAGE_SIZE (for sanity.)
>
> That might work, but a large part of me says to go for v3
> and do it cleanly.
The advantage would be that it wouldn't require a v3 for platforms for
which MIN_PAGE_SIZE == PAGE_SIZE, which accounts for a very large
percentage of systems.
You still have to look for the darn magic in two places, so there is no
reason for it to be different.
-hpa
next prev parent reply other threads:[~2007-03-09 4:32 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-05 23:55 PAGE_SIZE Availability Inconsistency David Brown
2007-03-05 23:59 ` Eric Dumazet
2007-03-06 0:01 ` Randy Dunlap
2007-03-06 0:03 ` David Miller
2007-03-06 0:04 ` David Brown
2007-03-06 0:26 ` David Miller
2007-03-06 2:21 ` H. Peter Anvin
2007-03-08 21:08 ` Avi Kivity
2007-03-08 22:21 ` H. Peter Anvin
2007-03-19 19:39 ` Eric W. Biederman
2007-03-06 9:29 ` Christoph Hellwig
2007-03-08 2:18 ` Roman Zippel
2007-03-08 5:28 ` David Brown
2007-03-08 8:32 ` Christoph Hellwig
2007-03-08 9:00 ` Christoph Hellwig
2007-03-08 15:53 ` Arjan van de Ven
2007-03-08 16:08 ` Christoph Hellwig
2007-03-08 16:21 ` Daniel Jacobowitz
2007-03-08 17:05 ` H. Peter Anvin
2007-03-08 17:12 ` Christoph Hellwig
2007-03-08 17:57 ` Anton Blanchard
2007-03-08 18:04 ` H. Peter Anvin
2007-03-08 21:42 ` Anton Blanchard
2007-03-08 21:46 ` Anton Blanchard
2007-03-08 21:48 ` David Miller
2007-03-09 2:43 ` Anton Blanchard
2007-03-09 4:18 ` H. Peter Anvin
2007-03-09 4:27 ` David Miller
2007-03-09 4:31 ` H. Peter Anvin [this message]
2007-03-09 4:36 ` David Miller
2007-03-21 2:12 ` Anton Blanchard
2007-03-21 2:48 ` H. Peter Anvin
2007-03-08 22:22 ` H. Peter Anvin
2007-03-08 21:03 ` David Brown
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