Re: [PATCH v2] timens: show clock symbolic names in /proc/pid/timens_offsets

On Tue, 14 Apr 2020 at 00:47, Andrew Morton [off-list ref] wrote:

On Sun, 12 Apr 2020 07:51:47 +0200 "Michael Kerrisk (man-pages)" [off-list ref] wrote:

quoted

Hi Andrei,

On Sat, 11 Apr 2020 at 17:40, Andrei Vagin [off-list ref] wrote:

quoted

Michael Kerrisk suggested to replace numeric clock IDs on symbolic
names.

Now the content of these files looks like this:
$ cat /proc/774/timens_offsets
monotonic      864000         0
boottime      1728000         0

Thanks.

Assuming no-one has objections to the patch, please do mark for stable@.

`grep -r timens_offsets Documentation' comes up blank.  Is
/proc/pid/timens_offsets documented anywhere?  If not, it should be!
And this patch should update that documentation.

I assume the time namespace feature itself is documented under clone(2)?

We're good, so far. There's time_namespaces(7) [1] and documentation
of CLONE_NEWTIME in unshare(2) [2].

CLONE_NEWTIME support for clone3() is still a work in progress [3].

Thanks,

Michael

[1] http://man7.org/linux/man-pages/man7/time_namespaces.7.html
[2] http://man7.org/linux/man-pages/man2/unshare.2.html
[3] https://lore.kernel.org/lkml/20200317083043.226593-1-areber@redhat.com/ (local)


--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/