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[PATCH] Revert "[PATCH] identifier to nsproxy"

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This reverts commit 373beb35cd.

No one is using this identifier yet.  The purpose of this identifier is to
export nsproxy to user space which is wrong.  nsproxy is an internal
implementation optimization, which should keep our fork times from getting
slower as we increase the number of global namespaces you don't have to
share.

Adding a global identifier like this is inappropriate because it makes
namespaces inherently non-recursive, greatly limiting what we can do with
them in the future.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric W. Biederman 2006-12-13 00:34:04 -08:00 committed by Linus Torvalds
parent d4c3cca941
commit 5f8442edfb
3 changed files with 1 additions and 5 deletions
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1
include/linux/init_task.h
View File

@ -75,7 +75,6 @@ extern struct nsproxy init_nsproxy;
.pid_ns = &init_pid_ns, \
.count = ATOMIC_INIT(1), \
.nslock = __SPIN_LOCK_UNLOCKED(nsproxy.nslock), \
.id = 0, \
.uts_ns = &init_uts_ns, \
.mnt_ns = NULL, \
INIT_IPC_NS(ipc_ns) \

1
include/linux/nsproxy.h
View File

@ -24,7 +24,6 @@ struct pid_namespace;
struct nsproxy {
atomic_t count;
spinlock_t nslock;
unsigned long id;
struct uts_namespace *uts_ns;
struct ipc_namespace *ipc_ns;
struct mnt_namespace *mnt_ns;

4
kernel/nsproxy.c
View File

@ -46,10 +46,8 @@ static inline struct nsproxy *clone_namespaces(struct nsproxy *orig)
struct nsproxy *ns;
ns = kmemdup(orig, sizeof(struct nsproxy), GFP_KERNEL);
if (ns) {
if (ns)
atomic_set(&ns->count, 1);
ns->id = -1;
}
return ns;
}