Messages in this thread | | | Date | Fri, 31 Oct 2014 01:42:20 -0700 | From | Christoph Hellwig <> | Subject | Re: [RFC PATCH] fs: allow open(dir, O_TMPFILE|..., 0) with mode 0 |
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On Thu, Oct 30, 2014 at 05:01:30PM -0700, Andy Lutomirski wrote: > > flink()), the mode really matters. So this idiotic glibc behavior of > > only forwarding the third argument if O_CREAT is set seems to be a > > bug. > > We could bite the bullet and add a tmpfile syscall. /me ducks
I've got another use case for that: Samba. It wants to inherit all kinds of attributes (xattrs, modes, etc) during file creation, and right now it's doing it in a racy way. I've come up with a patch to use O_TEMPFILE + flink, but it turns out that Samba may as well be asked to create read-only files, which we can't create using O_TMPFILE.
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