On Sun, May 14, 2006 at 03:58:01AM -0700, Andrew Morton wrote: > Evgeniy Dushistov <dushistov@xxxxxxx> wrote: > > > > Because of ufs's layout, code which works with UFS should > > time to time change such map "online": > > physical location<-->logical inode block > > It does? You mean that certain parts of a file will get moved from one set > of disk blocks to another? > In short file: consist of several blocks and fragments. sizeof(block)=8*sizeof(fragment), fragments used to prevent unwanted waste of space. When file is growing and we occupy 8 fragments in tail of it, we should allocate whole block and move all 8 fragments to it. In 2.2 I suppose such code works fine: bh = sb_bread bh->b_blocknr=newvalue mark_buffer_dirty I doubt that it is normal for 2.4, and this was completely wrong for 2.6. -- /Evgeniy - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
