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authorEric W. Biederman <ebiederm@xmission.com>2010-03-08 03:41:34 +0300
committerEric W. Biederman <ebiederm@xmission.com>2011-05-11 01:31:44 +0400
commit6b4e306aa3dc94a0545eb9279475b1ab6209a31f (patch)
treeca8c6dec0805076f0b5ba7c547e3cb2004e3aea2 /fs/proc/Makefile
parent0ee5623f9a6e52df90a78bd21179f8ab370e102e (diff)
downloadlinux-6b4e306aa3dc94a0545eb9279475b1ab6209a31f.tar.xz
ns: proc files for namespace naming policy.
Create files under /proc/<pid>/ns/ to allow controlling the namespaces of a process. This addresses three specific problems that can make namespaces hard to work with. - Namespaces require a dedicated process to pin them in memory. - It is not possible to use a namespace unless you are the child of the original creator. - Namespaces don't have names that userspace can use to talk about them. The namespace files under /proc/<pid>/ns/ can be opened and the file descriptor can be used to talk about a specific namespace, and to keep the specified namespace alive. A namespace can be kept alive by either holding the file descriptor open or bind mounting the file someplace else. aka: mount --bind /proc/self/ns/net /some/filesystem/path mount --bind /proc/self/fd/<N> /some/filesystem/path This allows namespaces to be named with userspace policy. It requires additional support to make use of these filedescriptors and that will be comming in the following patches. Acked-by: Daniel Lezcano <daniel.lezcano@free.fr> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'fs/proc/Makefile')
-rw-r--r--fs/proc/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/proc/Makefile b/fs/proc/Makefile
index df434c5f28fb..c1c729335924 100644
--- a/fs/proc/Makefile
+++ b/fs/proc/Makefile
@@ -20,6 +20,7 @@ proc-y += stat.o
proc-y += uptime.o
proc-y += version.o
proc-y += softirqs.o
+proc-y += namespaces.o
proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o
proc-$(CONFIG_NET) += proc_net.o
proc-$(CONFIG_PROC_KCORE) += kcore.o