From: Christian Brauner <christian.brauner@ubuntu.com>
To: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Will Deacon <will@kernel.org>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Thomas Gleixner <tglx@linutronix.de>,
Serge Hallyn <serge@hallyn.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Andy Lutomirski <luto@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Dmitry Safonov <dima@arista.com>, Andrei Vagin <avagin@gmail.com>,
Christian Brauner <christian.brauner@ubuntu.com>
Subject: [PATCH 0/3] nsproxy: support CLONE_NEWTIME with setns()
Date: Fri, 19 Jun 2020 17:35:56 +0200 [thread overview]
Message-ID: <20200619153559.724863-1-christian.brauner@ubuntu.com> (raw)
Hey,
So far setns() was missing time namespace support. This was partially
due to it simply not being implemented but also because
vdso_join_timens() could still fail which made switching to multiple
namespaces atomically problematic. This series first fixes
vdso_join_timens() to never fail, introduces timens_commit() and finally
adds CLONE_NEWTIME support for setns().
Please note, that arm is currently in the process of adding
vdso_join_timens() support (cf. [1]) so it might make sense to split the
vdso_join_timens() change out and route it to mainline as a fix so both
my series and the arm support can be rebased on top of it. I've Cced the
relevant people and I'm also replying to the arm thread now.
[1]: https://lore.kernel.org/lkml/20200602180259.76361-1-avagin@gmail.com/
Thanks!
Christian
Christian Brauner (3):
timens: make vdso_join_timens() always succeed
timens: add timens_commit() helper
nsproxy: support CLONE_NEWTIME with setns()
arch/x86/entry/vdso/vma.c | 6 ++----
include/linux/time_namespace.h | 13 +++++++++----
kernel/nsproxy.c | 21 +++++++++++++++++++--
kernel/time/namespace.c | 22 ++++++++--------------
4 files changed, 38 insertions(+), 24 deletions(-)
base-commit: b3a9e3b9622ae10064826dccb4f7a52bd88c7407
--
2.27.0
next reply other threads:[~2020-06-19 15:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-19 15:35 Christian Brauner [this message]
2020-06-19 15:35 ` [PATCH 1/3] timens: make vdso_join_timens() always succeed Christian Brauner
2020-06-19 15:35 ` [PATCH 2/3] timens: add timens_commit() helper Christian Brauner
2020-06-19 15:35 ` [PATCH 3/3] nsproxy: support CLONE_NEWTIME with setns() Christian Brauner
2020-06-23 11:55 ` Christian Brauner
2020-06-25 8:42 ` Andrei Vagin
2020-06-25 9:06 ` Andrei Vagin
2020-06-25 12:48 ` Christian Brauner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200619153559.724863-1-christian.brauner@ubuntu.com \
--to=christian.brauner@ubuntu.com \
--cc=avagin@gmail.com \
--cc=catalin.marinas@arm.com \
--cc=dima@arista.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=luto@kernel.org \
--cc=mark.rutland@arm.com \
--cc=mtk.manpages@gmail.com \
--cc=serge@hallyn.com \
--cc=tglx@linutronix.de \
--cc=vincenzo.frascino@arm.com \
--cc=will@kernel.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).