On Thu, Jan 14, 2010 at 09:27:38AM -0800, Roland Dreier wrote: > > > if you run it on ext4, it will create a 4-byte file with "test" in it. > > On btrfs, however, the file size would be 4096, and the remaining > > space will be filled with zeroes. > > My fallocate man page says: > > Because allocation is done in block size chunks, fallocate() may > allocate a larger range than that which was specified. > > so the btrfs behavior seems OK to me. > > You say this is a regression. What btrfs version behaved differently? The file size should still be 4 bytes I think, even if we allocate 4096. -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
