diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2018-04-09 10:50:17 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2018-04-09 10:50:17 -0700 |
| commit | e13e75b86ef2f88e3a47d672dd4c52a293efb95b (patch) | |
| tree | 2617aebd952d1aec09d323f6b2484b93f659e753 /drivers/md/dm.c | |
| parent | 1ed41b5696ccc3ff40a1dee39fe14eff273faf82 (diff) | |
| parent | 976431b02c2ef92ae3f8b6a7d699fc554025e118 (diff) | |
Merge branch 'for-4.17/dax' into libnvdimm-for-next
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 45328d8b2859..bac79f40f3cb 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1805,7 +1805,7 @@ static void cleanup_mapped_device(struct mapped_device *md) static struct mapped_device *alloc_dev(int minor) { int r, numa_node_id = dm_get_numa_node(); - struct dax_device *dax_dev; + struct dax_device *dax_dev = NULL; struct mapped_device *md; void *old_md; @@ -1871,9 +1871,11 @@ static struct mapped_device *alloc_dev(int minor) md->disk->private_data = md; sprintf(md->disk->disk_name, "dm-%d", minor); - dax_dev = alloc_dax(md, md->disk->disk_name, &dm_dax_ops); - if (!dax_dev) - goto bad; + if (IS_ENABLED(CONFIG_DAX_DRIVER)) { + dax_dev = alloc_dax(md, md->disk->disk_name, &dm_dax_ops); + if (!dax_dev) + goto bad; + } md->dax_dev = dax_dev; add_disk_no_queue_reg(md->disk); |