Messages in this thread | | | Date | Fri, 25 Jun 1999 23:38:55 +0200 | From | Jamie Lokier <> | Subject | Re: bottom-up mtimes (was Re: (reiserfs) Re: I discussed reading . . .) |
| |
Kragen Sitaker wrote: > Somebody wrote: > > Next [for W2K emulation] files need to be able to inherit stat data, so > > that a file can share its modification time with its parent > > directory, so that modifying the file changes the mod time on the > > directory. > > This opens some interesting possibilities: > - - updatedb need only run on directories that have been changed; > - - more-sophisticated versions of updatedb (full-text indexing? stat > data?) could become feasible to update rapidly; > - - locate could manually search directories that are newer than updatedb's > last run, meaning locate could give correct results > - - find could be implemented in terms of locate (except for -atime)
With something like `find' inheriting mtime doesn't work because mtimes can be reset with utime(), see `touch --date=...' or `touch --file=...'. You normally want that to affect Make (that's usually deliberate), but not a program like find which should always give the same results _as if_ it did a full scan.
-- Jamie
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |