Peter Teoh wrote: > Sorry, resent due to SMTP error: > > anyone knows any way of enumerating all the low level information like > these for each file? > > Best I can get is "debugfs": which uses libext2fs, so if you look at the debugfs source you can find out which basic library calls to use to get this information. > So using "show_inode_infor xxxx": > > Inode: 1146884 Type: regular Mode: 0767 Flags: 0x0 > Generation: 4262211373 > User: 0 Group: 0 Size: 4670783 > File ACL: 0 Directory ACL: 0 > Links: 1 Blockcount: 9152 > Fragment: Address: 0 Number: 0 Size: 0 > ctime: 0x46db7fb6 -- Mon Sep 3 11:29:58 2007 > atime: 0x47c66735 -- Thu Feb 28 15:48:05 2008 > mtime: 0x43118298 -- Sun Aug 28 17:23:36 2005 > BLOCKS: > (0-11):2317946-0, (IND):2317958, (12-1035):2317959-0, (DIND):2318983, > (IND):2318984, (1036-1140):2318985-0 > TOTAL: 1144 > > Here the "BLOCKS" correspond to the block numbering we are talking > about, right? It always start at 0 per-file. "IND" is the indirect > block. But what is "DIND"? "2317946" is the physical block number > right? And what is the zero after the "2317946"? BLOCKS: is the logical/physical mapping for the file. (AA-BB): YY-ZZ are (logical):physical ranges. IND is indirect, DIND is double indirect. As for the "XXXX-0" I'm not sure offhand; it should be the start-end range for the physical blocks. Bug perhaps? :) -Eric -- 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
