dm: rename map_info flush_request to target_request_nr

'target_request_nr' is a more generic name that reflects the fact that
it will be used for both flush and discard support.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index d6e28d732b4d..22d5e2fdab8b 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -213,10 +213,12 @@ static int stripe_map(struct dm_target *ti, struct bio *bio,
         struct stripe_c *sc = (struct stripe_c *) ti->private;
         sector_t offset, chunk;
         uint32_t stripe;
+        unsigned target_request_nr;
 
         if (unlikely(bio_empty_barrier(bio))) {
-                BUG_ON(map_context->flush_request >= sc->stripes);
-                bio->bi_bdev = sc->stripe[map_context->flush_request].dev->bdev;
+                target_request_nr = map_context->target_request_nr;
+                BUG_ON(target_request_nr >= sc->stripes);
+                bio->bi_bdev = sc->stripe[target_request_nr].dev->bdev;
                 return DM_MAPIO_REMAPPED;
         }