1 files changed, 2 insertions, 0 deletions

diff --git a/kernel/fork.c b/kernel/fork.c
index d57118da73ff..80284eb488ce 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1038,10 +1038,12 @@ static struct task_struct *copy_process(unsigned long clone_flags,
         p->utime = cputime_zero;
         p->stime = cputime_zero;
         p->sched_time = 0;
+#ifdef CONFIG_TASK_XACCT
         p->rchar = 0;           /* I/O counter: bytes read */
         p->wchar = 0;           /* I/O counter: bytes written */
         p->syscr = 0;           /* I/O counter: read syscalls */
         p->syscw = 0;           /* I/O counter: write syscalls */
+#endif
         task_io_accounting_init(p);
         acct_clear_integrals(p);