namespaces: mqueue namespace: adapt sysctl

Largely inspired from ipc/ipc_sysctl.c.  This patch isolates the mqueue
sysctl stuff in its own file.

[akpm@linux-foundation.org: build fix]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Nadia Derbey <Nadia.Derbey@bull.net>
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 64 deletions

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index c82d7b51ef68..e35ba2c3a8d7 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -47,15 +47,6 @@
 #define STATE_PENDING   1
 #define STATE_READY     2
 
-/*
- * Define the ranges various user-specified maximum values can
- * be set to.
- */
-#define MIN_MSGMAX      1               /* min value for msg_max */
-#define MAX_MSGMAX      HARD_MSGMAX     /* max value for msg_max */
-#define MIN_MSGSIZEMAX  128             /* min value for msgsize_max */
-#define MAX_MSGSIZEMAX  (8192*128)      /* max value for msgsize_max */
-
 struct ext_wait_queue {         /* queue of sleeping tasks */
         struct task_struct *task;
         struct list_head list;
@@ -1271,60 +1262,6 @@ void mq_put_mnt(struct ipc_namespace *ns)
         mntput(ns->mq_mnt);
 }
 
-static int msg_max_limit_min = MIN_MSGMAX;
-static int msg_max_limit_max = MAX_MSGMAX;
-
-static int msg_maxsize_limit_min = MIN_MSGSIZEMAX;
-static int msg_maxsize_limit_max = MAX_MSGSIZEMAX;
-
-static ctl_table mq_sysctls[] = {
-        {
-                .procname       = "queues_max",
-                .data           = &init_ipc_ns.mq_queues_max,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec,
-        },
-        {
-                .procname       = "msg_max",
-                .data           = &init_ipc_ns.mq_msg_max,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec_minmax,
-                .extra1         = &msg_max_limit_min,
-                .extra2         = &msg_max_limit_max,
-        },
-        {
-                .procname       = "msgsize_max",
-                .data           = &init_ipc_ns.mq_msgsize_max,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = &proc_dointvec_minmax,
-                .extra1         = &msg_maxsize_limit_min,
-                .extra2         = &msg_maxsize_limit_max,
-        },
-        { .ctl_name = 0 }
-};
-
-static ctl_table mq_sysctl_dir[] = {
-        {
-                .procname       = "mqueue",
-                .mode           = 0555,
-                .child          = mq_sysctls,
-        },
-        { .ctl_name = 0 }
-};
-
-static ctl_table mq_sysctl_root[] = {
-        {
-                .ctl_name       = CTL_FS,
-                .procname       = "fs",
-                .mode           = 0555,
-                .child          = mq_sysctl_dir,
-        },
-        { .ctl_name = 0 }
-};
-
 static int __init init_mqueue_fs(void)
 {
         int error;
@@ -1336,7 +1273,7 @@ static int __init init_mqueue_fs(void)
                 return -ENOMEM;
 
         /* ignore failues - they are not fatal */
-        mq_sysctl_table = register_sysctl_table(mq_sysctl_root);
+        mq_sysctl_table = mq_register_sysctl_table();
 
         error = register_filesystem(&mqueue_fs_type);
         if (error)