iphase: Fix 64bit warning.

[linux-2.6] / kernel / sysctl.c

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 874e813e40c8d33345d4bc8215a9da327294adec..d7ffdc59816ad3f822389d508f3c5ff1b030578d 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1434,7 +1434,8 @@ void register_sysctl_root(struct ctl_table_root *root)
 
 #ifdef CONFIG_SYSCTL_SYSCALL
 /* Perform the actual read/write of a sysctl table entry. */
-static int do_sysctl_strategy(struct ctl_table *table,
+static int do_sysctl_strategy(struct ctl_table_root *root,
+                       struct ctl_table *table,
                        int __user *name, int nlen,
                        void __user *oldval, size_t __user *oldlenp,
                        void __user *newval, size_t newlen)
@@ -1445,7 +1446,7 @@ static int do_sysctl_strategy(struct ctl_table *table,
                op |= 004;
        if (newval)
                op |= 002;
-       if (sysctl_perm(table, op))
+       if (sysctl_perm(root, table, op))
                return -EPERM;
 
        if (table->strategy) {
@@ -1471,6 +1472,7 @@ static int do_sysctl_strategy(struct ctl_table *table,
 static int parse_table(int __user *name, int nlen,
                       void __user *oldval, size_t __user *oldlenp,
                       void __user *newval, size_t newlen,
+                      struct ctl_table_root *root,
                       struct ctl_table *table)
 {
        int n;
@@ -1485,14 +1487,14 @@ repeat:
                if (n == table->ctl_name) {
                        int error;
                        if (table->child) {
-                               if (sysctl_perm(table, 001))
+                               if (sysctl_perm(root, table, 001))
                                        return -EPERM;
                                name++;
                                nlen--;
                                table = table->child;
                                goto repeat;
                        }
-                       error = do_sysctl_strategy(table, name, nlen,
+                       error = do_sysctl_strategy(root, table, name, nlen,
                                                   oldval, oldlenp,
                                                   newval, newlen);
                        return error;
@@ -1518,7 +1520,8 @@ int do_sysctl(int __user *name, int nlen, void __user *oldval, size_t __user *ol
        for (head = sysctl_head_next(NULL); head;
                        head = sysctl_head_next(head)) {
                error = parse_table(name, nlen, oldval, oldlenp, 
-                                       newval, newlen, head->ctl_table);
+                                       newval, newlen,
+                                       head->root, head->ctl_table);
                if (error != -ENOTDIR) {
                        sysctl_head_finish(head);
                        break;
@@ -1564,13 +1567,21 @@ static int test_perm(int mode, int op)
        return -EACCES;
 }
 
-int sysctl_perm(struct ctl_table *table, int op)
+int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int op)
 {
        int error;
+       int mode;
+
        error = security_sysctl(table, op);
        if (error)
                return error;
-       return test_perm(table->mode, op);
+
+       if (root->permissions)
+               mode = root->permissions(root, current->nsproxy, table);
+       else
+               mode = table->mode;
+
+       return test_perm(mode, op);
 }
 
 static void sysctl_set_parent(struct ctl_table *parent, struct ctl_table *table)