writeback: add name to backing_dev_info

This enables us to track who does what and print info. Its main use
is catching dirty inodes on the default_backing_dev_info, so we can
fix that up.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2 files changed, 2 insertions, 0 deletions

diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 1e15889c4b98..95d344971eda 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -268,6 +268,7 @@ aoeblk_gdalloc(void *vp)
         if (!d->blkq)
                 goto err_mempool;
         blk_queue_make_request(d->blkq, aoeblk_make_request);
+        d->blkq->backing_dev_info.name = "aoe";
         if (bdi_init(&d->blkq->backing_dev_info))
                 goto err_blkq;
         spin_lock_irqsave(&d->lock, flags);
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index afa8813e737a..645237bda682 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -822,6 +822,7 @@ static const struct file_operations zero_fops = {
  * - permits private mappings, "copies" are taken of the source of zeros
  */
 static struct backing_dev_info zero_bdi = {
+        .name           = "char/mem",
         .capabilities   = BDI_CAP_MAP_COPY,
 };