From: Christoph Hellwig <hch@infradead.org>
To: Matthew Wilcox <matthew@wil.cx>
Cc: Tony Battersby <tonyb@cybernetics.com>, linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] [RFC] LBD fixes for Linux 2.6.10 [2/2]
Date: Thu, 13 Jan 2005 18:54:54 +0000 [thread overview]
Message-ID: <20050113185454.GA27087@infradead.org> (raw)
In-Reply-To: <20050113184302.GC30982@parcelfarce.linux.theplanet.co.uk>
On Thu, Jan 13, 2005 at 06:43:02PM +0000, Matthew Wilcox wrote:
> That's actually not wise. For ext3, the block numbers _on disc_
> are 32-bit in size, so making them sector_t in memory is just a waste.
> reiserfs seems to be the same. OTOH, XFS does use 64-bit blocks on disc,
> so should use an explicitly 64-bit size in memory too.
XFS has compile-time switches for 32/64 bit in memory. On Linux it's
64bit with either a 64bit host or CONFIG_LBD.
next prev parent reply other threads:[~2005-01-13 18:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-11 18:47 [PATCH] [RFC] LBD fixes for Linux 2.6.10 [2/2] Tony Battersby
2005-01-13 18:43 ` Matthew Wilcox
2005-01-13 18:54 ` Christoph Hellwig [this message]
2005-01-13 20:46 ` Tony Battersby
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