[PATCH] eCryptfs: Use fsstack's generic copy inode attr functions

[mv-sheeva.git] / kernel / sys.c

diff --git a/kernel/sys.c b/kernel/sys.c
index c87b461de38dc1b22e2c1597b27b422d6d409932..1ac2d1c5d84ee31fdbae021a4313ee1b6e328b69 100644 (file)
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1102,14 +1102,14 @@ asmlinkage long sys_setreuid(uid_t ruid, uid_t euid)
 asmlinkage long sys_setuid(uid_t uid)
 {
        int old_euid = current->euid;
-       int old_ruid, old_suid, new_ruid, new_suid;
+       int old_ruid, old_suid, new_suid;
        int retval;
 
        retval = security_task_setuid(uid, (uid_t)-1, (uid_t)-1, LSM_SETID_ID);
        if (retval)
                return retval;
 
-       old_ruid = new_ruid = current->uid;
+       old_ruid = current->uid;
        old_suid = current->suid;
        new_suid = old_suid;
        
@@ -1484,7 +1484,6 @@ asmlinkage long sys_setsid(void)
        pid_t session;
        int err = -EPERM;
 
-       mutex_lock(&tty_mutex);
        write_lock_irq(&tasklist_lock);
 
        /* Fail if I am already a session leader */
@@ -1504,12 +1503,15 @@ asmlinkage long sys_setsid(void)
 
        group_leader->signal->leader = 1;
        __set_special_pids(session, session);
+
+       spin_lock(&group_leader->sighand->siglock);
        group_leader->signal->tty = NULL;
        group_leader->signal->tty_old_pgrp = 0;
+       spin_unlock(&group_leader->sighand->siglock);
+
        err = process_group(group_leader);
 out:
        write_unlock_irq(&tasklist_lock);
-       mutex_unlock(&tty_mutex);
        return err;
 }