linux-kernel - [RFC 0/4] reduce pid_namespace footprint when not configured

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 30 Sep 2015 22:49:19 +0200
From:	Rasmus Villemoes <linux@...musvillemoes.dk>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Oleg Nesterov <oleg@...hat.com>
Cc:	Rasmus Villemoes <linux@...musvillemoes.dk>,
	linux-kernel@...r.kernel.org
Subject: [RFC 0/4] reduce pid_namespace footprint when not configured

A few suggestions for reducing the footprint of pid namespaces when
CONFIG_PID_NS=n. The savings are admittedly not huge:

$ scripts/bloat-o-meter /tmp/vmlinux.master vmlinux
add/remove: 0/7 grow/shrink: 30/25 up/down: 368/-1032 (-664)

Rasmus Villemoes (4):
  pid_namespace: remove ->level and ->parent for !CONFIG_PID_NS
  pid_namespace: remove .kref field for !CONFIG_PID_NS
  pid_namespace: make pid_nr_ns and pid_vnr static inlines for
    !CONFIG_PID_NS
  pid_namespace: disable_pid_allocation is unused for !CONFIG_PID_NS

 include/linux/pid.h           | 11 +++++++++++
 include/linux/pid_namespace.h | 20 ++++++++++++++++++++
 kernel/acct.c                 |  4 ++--
 kernel/pid.c                  | 24 +++++++++++++++---------
 4 files changed, 48 insertions(+), 11 deletions(-)

-- 
2.1.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/