CRED: Separate task security context from task_struct

Separate the task security context from task_struct.  At this point, the
security data is temporarily embedded in the task_struct with two pointers
pointing to it.

Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in
entry.S via asm-offsets.

With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com>

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 14 insertions, 14 deletions

diff --git a/kernel/uid16.c b/kernel/uid16.c
index 3e41c1673e2f..71f07fc39fea 100644
--- a/kernel/uid16.c
+++ b/kernel/uid16.c
@@ -86,9 +86,9 @@ asmlinkage long sys_getresuid16(old_uid_t __user *ruid, old_uid_t __user *euid,
 {
         int retval;
 
-        if (!(retval = put_user(high2lowuid(current->uid), ruid)) &&
-            !(retval = put_user(high2lowuid(current->euid), euid)))
-                retval = put_user(high2lowuid(current->suid), suid);
+        if (!(retval = put_user(high2lowuid(current->cred->uid), ruid)) &&
+            !(retval = put_user(high2lowuid(current->cred->euid), euid)))
+                retval = put_user(high2lowuid(current->cred->suid), suid);
 
         return retval;
 }
@@ -106,9 +106,9 @@ asmlinkage long sys_getresgid16(old_gid_t __user *rgid, old_gid_t __user *egid,
 {
         int retval;
 
-        if (!(retval = put_user(high2lowgid(current->gid), rgid)) &&
-            !(retval = put_user(high2lowgid(current->egid), egid)))
-                retval = put_user(high2lowgid(current->sgid), sgid);
+        if (!(retval = put_user(high2lowgid(current->cred->gid), rgid)) &&
+            !(retval = put_user(high2lowgid(current->cred->egid), egid)))
+                retval = put_user(high2lowgid(current->cred->sgid), sgid);
 
         return retval;
 }
@@ -166,20 +166,20 @@ asmlinkage long sys_getgroups16(int gidsetsize, old_gid_t __user *grouplist)
         if (gidsetsize < 0)
                 return -EINVAL;
 
-        get_group_info(current->group_info);
-        i = current->group_info->ngroups;
+        get_group_info(current->cred->group_info);
+        i = current->cred->group_info->ngroups;
         if (gidsetsize) {
                 if (i > gidsetsize) {
                         i = -EINVAL;
                         goto out;
                 }
-                if (groups16_to_user(grouplist, current->group_info)) {
+                if (groups16_to_user(grouplist, current->cred->group_info)) {
                         i = -EFAULT;
                         goto out;
                 }
         }
 out:
-        put_group_info(current->group_info);
+        put_group_info(current->cred->group_info);
         return i;
 }
 
@@ -210,20 +210,20 @@ asmlinkage long sys_setgroups16(int gidsetsize, old_gid_t __user *grouplist)
 
 asmlinkage long sys_getuid16(void)
 {
-        return high2lowuid(current->uid);
+        return high2lowuid(current->cred->uid);
 }
 
 asmlinkage long sys_geteuid16(void)
 {
-        return high2lowuid(current->euid);
+        return high2lowuid(current->cred->euid);
 }
 
 asmlinkage long sys_getgid16(void)
 {
-        return high2lowgid(current->gid);
+        return high2lowgid(current->cred->gid);
 }
 
 asmlinkage long sys_getegid16(void)
 {
-        return high2lowgid(current->egid);
+        return high2lowgid(current->cred->egid);
 }