chris@mimsy.UUCP (Chris Torek) (08/17/87)
In article <561@murphy.UUCP> dave@murphy.UUCP (Dave Cornutt) writes: >Mkdir by itself isn't sufficient. (Unless your fsck can create directory space. Even if it can, preallocated space is safer, given that fsck is working on a potentially broken file system.) >Now, here's my question: I've seen several postings here saying that BSD4.3 >is capable of shrinking directories. In that case, if I create a bunch >of files in a lost+found directory and then delete them, what's to stop >it from shrinking the directory and undoing the effect? A directory is truncated iff namei discovers empty slots at the end while creating a new name (to do which it must scan the entire directory anyway). Directories are not truncated when namei is removing an entry. [Quibble: namei itself does not do the removing. Nonetheless it is given the reason for the name lookup.] -- In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 7690) Domain: chris@mimsy.umd.edu Path: seismo!mimsy!chris