Messages in this thread | | | Date | Thu, 10 Aug 2006 18:37:41 +0200 (CEST) | From | Roman Zippel <> | Subject | Re: [Ext2-devel] [PATCH 2/9] sector_t format string |
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Hi,
On Thu, 10 Aug 2006, Theodore Tso wrote:
> Ext4 will support a 48-bit blocknumber format for extents, but I do > want to make ext4 suitable as a general purpose filesystem, and 32-bit > systems will be around for I fear far longer than people might wish. > So while I agree that we shouldn't go _too_ far out of our way to make > things efficient on 32-bit systems, if it's not that much work to > support a 32-bit sector_t, we ought to do it. > > So how about a compromise? We allow for a 32-bit sector_t in ext4, > but we drop the SECTOR_FMT, and rely on %llu and typecasts in > printk's. Then the only other extra hair in the filesystem code will > be a mount-time check to make sure we don't try to mount a large > filesystem on system with a 32-bit sector_t.
Thanks, that's what I was hoping for. :) Disallowing to mount large fs without CONFIG_LBD is not a real problem and then also truncation is not an issue anymore (except maybe for e2fsck).
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