Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 01/13] devpts: Teach /dev/ptmx to find the associated devpts via path lookup | Date | Tue, 12 Apr 2016 12:07:45 -0700 |
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On 04/12/16 11:12, Linus Torvalds wrote: > > So what I want to happen is to "just make /dev/ptmx work". Get rid of > the broken "single instance" crap. The only reason it exists is > exactly because /dev/ptmx does not work. > > I think the current situation is completely and utterly broken. We > should never have done what we did. I want to *fix* the kernel, not > add random new magic crap. >
Agreed. As far as I'm concerned, there seem to be two realistic variants, talking semantically as opposed to implementation-wise:
1. Change the default mode of /dev/pts/ptmx to default to 0666, and make /dev/ptmx have the effective semantics of the symlink which userspace and userdev/devramfs should have provided all along.
2. Make /dev/ptmx simply look up the pts superblock from its path and then act like /dev/pts/ptmx. In that case we can probably remove the ptmx device node unless the ptmxmode mount option is given (in which case user space probably enabled the symlink.)
-hpa
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