On Mon, Dec 05, 2011 at 11:40:15AM -0500, Ted Ts'o wrote: > On Mon, Nov 28, 2011 at 03:27:25PM -0800, Darrick J. Wong wrote: > > /* > > + * This is the extent tail on-disk structure. > > + * All other extent structures are 12 bytes long. It turns out that > > + * block_size % 12 >= 4 for all valid block sizes (1k, 2k, 4k). > > More generally, block_size % 12 is >= 4 for all powers of 2 greater > than 12 bytes. I'd probably remove (1k, 2k, 4k) because that might > scare people who might say, "hey! I'm using a 16k block size on my > HPC system running on a Power or Itanium box --- am I going to be OK?". > Valid block sizes go up to the page size of the hardware in question... Ok. --D -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
