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path: root/drivers/md/dm.c
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-rw-r--r--drivers/md/dm.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index bd56dfe..ef4c6f8 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -630,6 +630,7 @@ static int open_table_device(struct table_device *td, dev_t dev,
}
td->dm_dev.bdev = bdev;
+ td->dm_dev.dax_dev = dax_get_by_host(bdev->bd_disk->disk_name);
return 0;
}
@@ -643,7 +644,9 @@ static void close_table_device(struct table_device *td, struct mapped_device *md
bd_unlink_disk_holder(td->dm_dev.bdev, dm_disk(md));
blkdev_put(td->dm_dev.bdev, td->dm_dev.mode | FMODE_EXCL);
+ put_dax(td->dm_dev.dax_dev);
td->dm_dev.bdev = NULL;
+ td->dm_dev.dax_dev = NULL;
}
static struct table_device *find_table_device(struct list_head *l, dev_t dev,
@@ -945,16 +948,9 @@ static long dm_dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff,
if (len < 1)
goto out;
nr_pages = min(len, nr_pages);
- if (ti->type->direct_access) {
- ret = ti->type->direct_access(ti, sector, kaddr, pfn,
- nr_pages * PAGE_SIZE);
- /*
- * FIXME: convert ti->type->direct_access to return
- * nr_pages directly.
- */
- if (ret >= 0)
- ret /= PAGE_SIZE;
- }
+ if (ti->type->direct_access)
+ ret = ti->type->direct_access(ti, pgoff, nr_pages, kaddr, pfn);
+
out:
dm_put_live_table(md, srcu_idx);
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