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Re: [PATCH] Linux: Implement per-thread user and group IDs
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Florian Weimer <fweimer at redhat dot com>
- Cc: <libc-alpha at sourceware dot org>, Jeremy Allison <jra at samba dot org>, Daniel Gryniewicz <dang at redhat dot com>
- Date: Thu, 13 Dec 2018 17:38:06 +0000
- Subject: Re: [PATCH] Linux: Implement per-thread user and group IDs
- References: <87mup9okd3.fsf@oldenburg2.str.redhat.com>
It has previously been discussed that it would be desirable for the kernel
to have whole-process setXid syscalls
<https://sourceware.org/glibc/wiki/Development_Todo/Master#setXid_issues>.
Given the per-thread ID feature, would you expect any such future kernel
feature to provide some way of exempting particular threads from the
whole-process syscalls, or would you expect glibc to continue to use the
signal-based mechanism in processes with threads with per-thread IDs?
--
Joseph S. Myers
joseph@codesourcery.com