On Fri, 2004-12-17 at 22:40 +0100, B.Hakvoort wrote: > Hi ppl, > > I've included support(create,grow,copy) for JFS in gparted > (http://gparted.sourceforge.net) using the CLI tools. > > The only thing i couldn't get done is to read the amount of used/unused > space on a filesystem. I guess this can be done using jfs_debugfs, but i > can't figure out how.
You can get it from the "dmap" command in jfs_debugfs. "echo dm | jfs_debugfs /dev/whatever". dn_free is the number of free blocks, and you can get the used blocks by subtracting dn_free from dn_mapsize. Right now, and maybe forever, the block size is always 4K, but it's possible that someday other block sizes will be supported. jfs_debugfs always prints this as "Aggregate Block Size" if you want to play it safe and parse it. > Any insights/hints are appreciated :) > > Bart > > PS. please CC me, since i'm not on this list -- David Kleikamp IBM Linux Technology Center _______________________________________________ Jfs-discussion mailing list Jfs-discussion@www-124.ibm.com http://www-124.ibm.com/developerworks/oss/mailman/listinfo/jfs-discussion
