dax: remove the pmem_dax_ops->flush abstraction

[mirror_ubuntu-artful-kernel.git] / drivers / md / dm.c

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index d669fddd9290d027a39fa2e65b01b0a1b24afc0a..825eaffc24da9706152e092cf074678e743fc743 100644 (file)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -987,24 +987,6 @@ static size_t dm_dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
        return ret;
 }
 
-static void dm_dax_flush(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
-               size_t size)
-{
-       struct mapped_device *md = dax_get_private(dax_dev);
-       sector_t sector = pgoff * PAGE_SECTORS;
-       struct dm_target *ti;
-       int srcu_idx;
-
-       ti = dm_dax_get_live_target(md, sector, &srcu_idx);
-
-       if (!ti)
-               goto out;
-       if (ti->type->dax_flush)
-               ti->type->dax_flush(ti, pgoff, addr, size);
- out:
-       dm_put_live_table(md, srcu_idx);
-}
-
 /*
  * A target may call dm_accept_partial_bio only from the map routine.  It is
  * allowed for all bio types except REQ_PREFLUSH.
@@ -2992,7 +2974,6 @@ static const struct block_device_operations dm_blk_dops = {
 static const struct dax_operations dm_dax_ops = {
        .direct_access = dm_dax_direct_access,
        .copy_from_iter = dm_dax_copy_from_iter,
-       .flush = dm_dax_flush,
 };
 
 /*