1 files changed, 19 insertions, 0 deletions

diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index fbf7f2284952..3546b0800f9f 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -85,3 +85,22 @@ static void delayacct_end(struct timespec *start, struct timespec *end,
         spin_unlock(&current->delays->lock);
 }
 
+void __delayacct_blkio_start(void)
+{
+        delayacct_start(&current->delays->blkio_start);
+}
+
+void __delayacct_blkio_end(void)
+{
+        if (current->delays->flags & DELAYACCT_PF_SWAPIN)
+                /* Swapin block I/O */
+                delayacct_end(&current->delays->blkio_start,
+                        &current->delays->blkio_end,
+                        &current->delays->swapin_delay,
+                        &current->delays->swapin_count);
+        else    /* Other block I/O */
+                delayacct_end(&current->delays->blkio_start,
+                        &current->delays->blkio_end,
+                        &current->delays->blkio_delay,
+                        &current->delays->blkio_count);
+}