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[PATCH] namespaces: add nsproxy

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This patch adds a nsproxy structure to the task struct.  Later patches will
move the fs namespace pointer into this structure, and introduce a new utsname
namespace into the nsproxy.

The vserver and openvz functionality, then, would be implemented in large part
by virtualizing/isolating more and more resources into namespaces, each
contained in the nsproxy.

[akpm@osdl.org: build fix]
Signed-off-by: Serge Hallyn <serue@us.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Andrey Savochkin <saw@sw.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Serge E. Hallyn 2006-10-02 02:18:06 -07:00 • committed by Linus Torvalds
parent b1ba4ddde0
commit ab516013ad
27 changed files with 196 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

7
kernel/exit.c
View file

@ -21,6 +21,7 @@
#include <linux/tsacct_kern.h>
#include <linux/file.h>
#include <linux/binfmts.h>
#include <linux/nsproxy.h>
#include <linux/ptrace.h>
#include <linux/profile.h>
#include <linux/mount.h>
@ -397,9 +398,14 @@ void daemonize(const char *name, ...)
fs = init_task.fs;
current->fs = fs;
atomic_inc(&fs->count);
exit_namespace(current);
exit_task_namespaces(current);
current->namespace = init_task.namespace;
current->nsproxy = init_task.nsproxy;
get_namespace(current->namespace);
get_task_namespaces(current);
exit_files(current);
current->files = init_task.files;
atomic_inc(&current->files->count);
@ -918,6 +924,7 @@ fastcall NORET_TYPE void do_exit(long code)
__exit_files(tsk);
__exit_fs(tsk);
exit_namespace(tsk);
exit_task_namespaces(tsk);
exit_thread();
cpuset_exit(tsk);
exit_keys(tsk);