drbd: finally report ms, not jiffies, in log message

Also skip the message unless bitmap IO took longer than 5 ms.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index 095625b..0807fcb 100644 (file)
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -1121,10 +1121,14 @@ static int bm_rw(struct drbd_device *device, const unsigned int flags, unsigned
                kref_put(&ctx->kref, &drbd_bm_aio_ctx_destroy);
 
        /* summary for global bitmap IO */
-       if (flags == 0)
-               drbd_info(device, "bitmap %s of %u pages took %lu jiffies\n",
-                        (flags & BM_AIO_READ) ? "READ" : "WRITE",
-                        count, jiffies - now);
+       if (flags == 0) {
+               unsigned int ms = jiffies_to_msecs(jiffies - now);
+               if (ms > 5) {
+                       drbd_info(device, "bitmap %s of %u pages took %u ms\n",
+                                (flags & BM_AIO_READ) ? "READ" : "WRITE",
+                                count, ms);
+               }
+       }
 
        if (ctx->error) {
                drbd_alert(device, "we had at least one MD IO ERROR during bitmap IO\n");