Flash and small modifications
Flash and small modifications
Posted Apr 6, 2012 22:46 UTC (Fri) by jzbiciak (guest, #5246)In reply to: Flash and small modifications by dlang
Parent article: 2012 Linux Storage, Filesystem, and Memory Management Summit - Day 2
Where I think the overlaid CRCs might become more interesting is when the CRC is supposed to cover a fairly large block (say 64K) but you're rewriting a much smaller piece (say 4K) with a minor update. If you don't have the other pieces handy, you can compute your CRC update on just the piece you have, rather than having to go read them.