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-rw-r--r--drivers/md/bitmap.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 09d32db..41df4cd 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1451,6 +1451,29 @@ static void bitmap_set_memory_bits(struct bitmap *bitmap, sector_t offset)
}
/*
+ * flush out any pending updates
+ */
+void bitmap_flush(mddev_t *mddev)
+{
+ struct bitmap *bitmap = mddev->bitmap;
+ int sleep;
+
+ if (!bitmap) /* there was no bitmap */
+ return;
+
+ /* run the daemon_work three time to ensure everything is flushed
+ * that can be
+ */
+ sleep = bitmap->daemon_sleep;
+ bitmap->daemon_sleep = 0;
+ bitmap_daemon_work(bitmap);
+ bitmap_daemon_work(bitmap);
+ bitmap_daemon_work(bitmap);
+ bitmap->daemon_sleep = sleep;
+ bitmap_update_sb(bitmap);
+}
+
+/*
* free memory that was allocated
*/
void bitmap_destroy(mddev_t *mddev)
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