tjr的tfs?
junsu昨天给了我一个perforce的URL: http://perforce.freebsd.org/chv.cgi?CH=45432
tjr写道: “Initial work on a new filesystem. Right now we can mount it, list
directories, and copy small files off it, but there is no write
support yet. This is going to be a simple extent-based filesystem,
borrowing ideas from NTFS and EFS.”
那么什么是extent呢？