Do 'shm_init_ns()' in an early pure_initcall

[pandora-kernel.git] / ipc / ipc_sysctl.c

diff --git a/ipc/ipc_sysctl.c b/ipc/ipc_sysctl.c
index 56410fa..00fba2b 100644 (file)
--- a/ipc/ipc_sysctl.c
+++ b/ipc/ipc_sysctl.c
@@ -31,12 +31,37 @@ static int proc_ipc_dointvec(ctl_table *table, int write,
        void __user *buffer, size_t *lenp, loff_t *ppos)
 {
        struct ctl_table ipc_table;
+
        memcpy(&ipc_table, table, sizeof(ipc_table));
        ipc_table.data = get_ipc(table);
 
        return proc_dointvec(&ipc_table, write, buffer, lenp, ppos);
 }
 
+static int proc_ipc_dointvec_minmax(ctl_table *table, int write,
+       void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+       struct ctl_table ipc_table;
+
+       memcpy(&ipc_table, table, sizeof(ipc_table));
+       ipc_table.data = get_ipc(table);
+
+       return proc_dointvec_minmax(&ipc_table, write, buffer, lenp, ppos);
+}
+
+static int proc_ipc_dointvec_minmax_orphans(ctl_table *table, int write,
+       void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+       struct ipc_namespace *ns = current->nsproxy->ipc_ns;
+       int err = proc_ipc_dointvec_minmax(table, write, buffer, lenp, ppos);
+
+       if (err < 0)
+               return err;
+       if (ns->shm_rmid_forced)
+               shm_destroy_orphaned(ns);
+       return err;
+}
+
 static int proc_ipc_callback_dointvec(ctl_table *table, int write,
        void __user *buffer, size_t *lenp, loff_t *ppos)
 {
@@ -125,6 +150,8 @@ static int proc_ipcauto_dointvec_minmax(ctl_table *table, int write,
 #else
 #define proc_ipc_doulongvec_minmax NULL
 #define proc_ipc_dointvec         NULL
+#define proc_ipc_dointvec_minmax   NULL
+#define proc_ipc_dointvec_minmax_orphans   NULL
 #define proc_ipc_callback_dointvec NULL
 #define proc_ipcauto_dointvec_minmax NULL
 #endif
@@ -154,6 +181,15 @@ static struct ctl_table ipc_kern_table[] = {
                .mode           = 0644,
                .proc_handler   = proc_ipc_dointvec,
        },
+       {
+               .procname       = "shm_rmid_forced",
+               .data           = &init_ipc_ns.shm_rmid_forced,
+               .maxlen         = sizeof(init_ipc_ns.shm_rmid_forced),
+               .mode           = 0644,
+               .proc_handler   = proc_ipc_dointvec_minmax_orphans,
+               .extra1         = &zero,
+               .extra2         = &one,
+       },
        {
                .procname       = "msgmax",
                .data           = &init_ipc_ns.msg_ctlmax,