[PATCH] add process_session() helper routine

[powerpc.git] / kernel / sys.c

diff --git a/kernel/sys.c b/kernel/sys.c
index 1ac2d1c..4f9d23a 100644 (file)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1381,7 +1381,7 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid)
 
        if (p->real_parent == group_leader) {
                err = -EPERM;
-               if (p->signal->session != group_leader->signal->session)
+               if (process_session(p) != process_session(group_leader))
                        goto out;
                err = -EACCES;
                if (p->did_exec)
@@ -1400,7 +1400,7 @@ asmlinkage long sys_setpgid(pid_t pid, pid_t pgid)
                struct task_struct *p;
 
                do_each_task_pid(pgid, PIDTYPE_PGID, p) {
-                       if (p->signal->session == group_leader->signal->session)
+                       if (process_session(p) == process_session(group_leader))
                                goto ok_pgid;
                } while_each_task_pid(pgid, PIDTYPE_PGID, p);
                goto out;
@@ -1459,7 +1459,7 @@ asmlinkage long sys_getpgrp(void)
 asmlinkage long sys_getsid(pid_t pid)
 {
        if (!pid)
-               return current->signal->session;
+               return process_session(current);
        else {
                int retval;
                struct task_struct *p;
@@ -1471,7 +1471,7 @@ asmlinkage long sys_getsid(pid_t pid)
                if (p) {
                        retval = security_task_getsid(p);
                        if (!retval)
-                               retval = p->signal->session;
+                               retval = process_session(p);
                }
                read_unlock(&tasklist_lock);
                return retval;