getrusage(): fill ru_inblock and ru_oublock fields if possible

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / exit.c

diff --git a/kernel/exit.c b/kernel/exit.c
index b0c6f0c3a2dfadd5e36647f2b0e5e5699174330d..7a5fd77f8fb01e0c6ef72f63972c98699bab92c9 100644 (file)
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -42,6 +42,7 @@
 #include <linux/audit.h> /* for audit_free() */
 #include <linux/resource.h>
 #include <linux/blkdev.h>
+#include <linux/task_io_accounting_ops.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -113,6 +114,8 @@ static void __exit_signal(struct task_struct *tsk)
                sig->nvcsw += tsk->nvcsw;
                sig->nivcsw += tsk->nivcsw;
                sig->sched_time += tsk->sched_time;
+               sig->inblock += task_io_get_inblock(tsk);
+               sig->oublock += task_io_get_oublock(tsk);
                sig = NULL; /* Marker for below. */
        }
 
@@ -1193,6 +1196,12 @@ static int wait_task_zombie(struct task_struct *p, int noreap,
                        p->nvcsw + sig->nvcsw + sig->cnvcsw;
                psig->cnivcsw +=
                        p->nivcsw + sig->nivcsw + sig->cnivcsw;
+               psig->cinblock +=
+                       task_io_get_inblock(p) +
+                       sig->inblock + sig->cinblock;
+               psig->coublock +=
+                       task_io_get_oublock(p) +
+                       sig->oublock + sig->coublock;
                spin_unlock_irq(&p->parent->sighand->siglock);
        }