On Jun 25, 2007 20:24 +0530, Aneesh Kumar K.V wrote: > Why would one need variable descriptor size. Right now we have only two > descriptor sizes right (32 and 64 ). Can't we figure out > the descriptor size we should use by looking at the partition size ? What > is that i am missing ?.
Because one may want to expand an ext4 filesystem over 16TB after format time, and this would require a 64-byte descriptor. In ext4 the descriptor is almost completely full already (to deal with BIG_BG changes, and possibly large blocksize changes), so we may even need 128-byte descriptors soon. Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. - To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
