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). bye, Roman - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
