Messages in this thread |  | | Date | Thu, 4 Oct 2001 12:11:34 -0400 (EDT) | From | Alexander Viro <> | Subject | Re: Security question: "Text file busy" overwriting executables but not shared libraries? |
| |
On Thu, 4 Oct 2001, Linus Torvalds wrote:
> In short, now you need filesystem versioning at a per-page level etc.
*ding* *ding* *ding* we have a near winner. Remember, folks, Hurd had been started by people who not only don't understand UNIX, but detest it. ITS/TWENEX refugees. And semantics in question comes from there - they had "open and make sure that anyone who tries to modify will get a new version, leaving one we'd opened unchanged".
> Trust me. The people who came up with MAP_COPY were stupid. Really. It's > an idiotic concept, and it's not worth implementing.
Well, actually that's a concept that made sense on system we got mmap from[1] They just want infection to be complete.
[1] cue Tom Lehrer singing "I got it from Agnes, she got it from Jim"
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |