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make proc_ns_operations work with struct ns_common * instead of void *

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We can do that now.  And kill ->inum(), while we are at it - all instances
are identical.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2014-11-01 00:37:32 -04:00
parent 3c04118461
commit 64964528b2
9 changed files with 28 additions and 65 deletions
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12
kernel/pid_namespace.c
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@@ -318,7 +318,7 @@ static inline struct pid_namespace *to_pid_ns(struct ns_common *ns)
return container_of(ns, struct pid_namespace, ns);
}
static void *pidns_get(struct task_struct *task)
static struct ns_common *pidns_get(struct task_struct *task)
{
struct pid_namespace *ns;
@@ -331,12 +331,12 @@ static void *pidns_get(struct task_struct *task)
return ns ? &ns->ns : NULL;
}
static void pidns_put(void *ns)
static void pidns_put(struct ns_common *ns)
{
put_pid_ns(to_pid_ns(ns));
}
static int pidns_install(struct nsproxy *nsproxy, void *ns)
static int pidns_install(struct nsproxy *nsproxy, struct ns_common *ns)
{
struct pid_namespace *active = task_active_pid_ns(current);
struct pid_namespace *ancestor, *new = to_pid_ns(ns);
@@ -367,18 +367,12 @@ static int pidns_install(struct nsproxy *nsproxy, void *ns)
return 0;
}
static unsigned int pidns_inum(void *ns)
{
return ((struct ns_common *)ns)->inum;
}
const struct proc_ns_operations pidns_operations = {
.name = "pid",
.type = CLONE_NEWPID,
.get = pidns_get,
.put = pidns_put,
.install = pidns_install,
.inum = pidns_inum,
};
static __init int pid_namespaces_init(void)