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authorAl Viro <viro@zeniv.linux.org.uk>2014-11-01 00:37:32 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-12-04 14:34:17 -0500
commit64964528b24ea390824f0e5ce9d34b8d39b28cde (patch)
tree2de66d75468ad4ddecc7e175f86f1dbaae47ea9a /kernel
parent3c0411846118a578de3a979faf2da3ab5fb81179 (diff)
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make proc_ns_operations work with struct ns_common * instead of void *
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>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/pid_namespace.c12
-rw-r--r--kernel/user_namespace.c12
-rw-r--r--kernel/utsname.c12
3 files changed, 9 insertions, 27 deletions
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index dd961ad86fbd..79aabce49a85 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -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)
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 1ab2209228ff..29cd5ccfc37a 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -846,7 +846,7 @@ static inline struct user_namespace *to_user_ns(struct ns_common *ns)
return container_of(ns, struct user_namespace, ns);
}
-static void *userns_get(struct task_struct *task)
+static struct ns_common *userns_get(struct task_struct *task)
{
struct user_namespace *user_ns;
@@ -857,12 +857,12 @@ static void *userns_get(struct task_struct *task)
return user_ns ? &user_ns->ns : NULL;
}
-static void userns_put(void *ns)
+static void userns_put(struct ns_common *ns)
{
put_user_ns(to_user_ns(ns));
}
-static int userns_install(struct nsproxy *nsproxy, void *ns)
+static int userns_install(struct nsproxy *nsproxy, struct ns_common *ns)
{
struct user_namespace *user_ns = to_user_ns(ns);
struct cred *cred;
@@ -893,18 +893,12 @@ static int userns_install(struct nsproxy *nsproxy, void *ns)
return commit_creds(cred);
}
-static unsigned int userns_inum(void *ns)
-{
- return ((struct ns_common *)ns)->inum;
-}
-
const struct proc_ns_operations userns_operations = {
.name = "user",
.type = CLONE_NEWUSER,
.get = userns_get,
.put = userns_put,
.install = userns_install,
- .inum = userns_inum,
};
static __init int user_namespaces_init(void)
diff --git a/kernel/utsname.c b/kernel/utsname.c
index 1917f74be8ec..20697befe466 100644
--- a/kernel/utsname.c
+++ b/kernel/utsname.c
@@ -93,7 +93,7 @@ static inline struct uts_namespace *to_uts_ns(struct ns_common *ns)
return container_of(ns, struct uts_namespace, ns);
}
-static void *utsns_get(struct task_struct *task)
+static struct ns_common *utsns_get(struct task_struct *task)
{
struct uts_namespace *ns = NULL;
struct nsproxy *nsproxy;
@@ -109,12 +109,12 @@ static void *utsns_get(struct task_struct *task)
return ns ? &ns->ns : NULL;
}
-static void utsns_put(void *ns)
+static void utsns_put(struct ns_common *ns)
{
put_uts_ns(to_uts_ns(ns));
}
-static int utsns_install(struct nsproxy *nsproxy, void *new)
+static int utsns_install(struct nsproxy *nsproxy, struct ns_common *new)
{
struct uts_namespace *ns = to_uts_ns(new);
@@ -128,16 +128,10 @@ static int utsns_install(struct nsproxy *nsproxy, void *new)
return 0;
}
-static unsigned int utsns_inum(void *vp)
-{
- return ((struct ns_common *)vp)->inum;
-}
-
const struct proc_ns_operations utsns_operations = {
.name = "uts",
.type = CLONE_NEWUTS,
.get = utsns_get,
.put = utsns_put,
.install = utsns_install,
- .inum = utsns_inum,
};