1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 004ca21f7e80..58e2af8d064b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -735,6 +735,12 @@ struct task_struct {
         unsigned                        use_memdelay:1;
 #endif
 
+        /*
+         * May usercopy functions fault on kernel addresses?
+         * This is not just a single bit because this can potentially nest.
+         */
+        unsigned int                    kernel_uaccess_faults_ok;
+
         unsigned long                   atomic_flags; /* Flags requiring atomic access. */
 
         struct restart_block            restart_block;