Merge branch 'linus' into core/locking

Reason: Pull in the semaphore related changes

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 6 insertions, 3 deletions

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 42043f96e54f..4796ddd4e721 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2170,8 +2170,9 @@ static inline void flush_unauthorized_files(const struct cred *cred,
 
         tty = get_current_tty();
         if (tty) {
-                file_list_lock();
+                spin_lock(&tty_files_lock);
                 if (!list_empty(&tty->tty_files)) {
+                        struct tty_file_private *file_priv;
                         struct inode *inode;
 
                         /* Revalidate access to controlling tty.
@@ -2179,14 +2180,16 @@ static inline void flush_unauthorized_files(const struct cred *cred,
                            than using file_has_perm, as this particular open
                            file may belong to another process and we are only
                            interested in the inode-based check here. */
-                        file = list_first_entry(&tty->tty_files, struct file, f_u.fu_list);
+                        file_priv = list_first_entry(&tty->tty_files,
+                                                struct tty_file_private, list);
+                        file = file_priv->file;
                         inode = file->f_path.dentry->d_inode;
                         if (inode_has_perm(cred, inode,
                                            FILE__READ | FILE__WRITE, NULL)) {
                                 drop_tty = 1;
                         }
                 }
-                file_list_unlock();
+                spin_unlock(&tty_files_lock);
                 tty_kref_put(tty);
         }
         /* Reset controlling tty. */