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| author | Cedric Le Goater <clg@fr.ibm.com> | 2006-12-08 02:37:57 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-08 08:28:52 -0800 |
| commit | 373beb35cd6b625e0ba4ad98baace12310a26aa8 (patch) | |
| tree | 0cb0a8601a8141bff0ff63a2a6da982f5d023b61 | |
| parent | 6b3286ed1169d74fea401367d6d4d6c6ec758a81 (diff) | |
| download | lwn-373beb35cd6b625e0ba4ad98baace12310a26aa8.tar.gz lwn-373beb35cd6b625e0ba4ad98baace12310a26aa8.zip | |
[PATCH] identifier to nsproxy
Add an identifier to nsproxy. The default init_ns_proxy has identifier 0 and
allocated nsproxies are given -1.
This identifier will be used by a new syscall sys_bind_ns.
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/linux/init_task.h | 1 | ||||
| -rw-r--r-- | include/linux/nsproxy.h | 1 | ||||
| -rw-r--r-- | kernel/nsproxy.c | 4 |
3 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 5c4989172f7e..90c5f9a07730 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -75,6 +75,7 @@ extern struct nsproxy init_nsproxy; #define INIT_NSPROXY(nsproxy) { \ .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) \ diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h index 0aba1b1a39c7..27f37c1ec1d9 100644 --- a/include/linux/nsproxy.h +++ b/include/linux/nsproxy.h @@ -23,6 +23,7 @@ struct ipc_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; diff --git a/kernel/nsproxy.c b/kernel/nsproxy.c index bd9cb435dfe0..f223c15c18e9 100644 --- a/kernel/nsproxy.c +++ b/kernel/nsproxy.c @@ -45,8 +45,10 @@ 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; } |