diff options
Diffstat (limited to 'drivers/nvdimm/bus.c')
| -rw-r--r-- | drivers/nvdimm/bus.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/nvdimm/bus.c b/drivers/nvdimm/bus.c index a64023690cad..27902a8799b1 100644 --- a/drivers/nvdimm/bus.c +++ b/drivers/nvdimm/bus.c @@ -100,6 +100,9 @@ static int nvdimm_bus_probe(struct device *dev) if (!try_module_get(provider)) return -ENXIO; + dev_dbg(&nvdimm_bus->dev, "START: %s.probe(%s)\n", + dev->driver->name, dev_name(dev)); + nvdimm_bus_probe_start(nvdimm_bus); rc = nd_drv->probe(dev); if (rc == 0) @@ -108,7 +111,7 @@ static int nvdimm_bus_probe(struct device *dev) nd_region_disable(nvdimm_bus, dev); nvdimm_bus_probe_end(nvdimm_bus); - dev_dbg(&nvdimm_bus->dev, "%s.probe(%s) = %d\n", dev->driver->name, + dev_dbg(&nvdimm_bus->dev, "END: %s.probe(%s) = %d\n", dev->driver->name, dev_name(dev), rc); if (rc != 0) @@ -566,14 +569,18 @@ int nvdimm_revalidate_disk(struct gendisk *disk) { struct device *dev = disk_to_dev(disk)->parent; struct nd_region *nd_region = to_nd_region(dev->parent); - const char *pol = nd_region->ro ? "only" : "write"; + int disk_ro = get_disk_ro(disk); - if (nd_region->ro == get_disk_ro(disk)) + /* + * Upgrade to read-only if the region is read-only preserve as + * read-only if the disk is already read-only. + */ + if (disk_ro || nd_region->ro == disk_ro) return 0; - dev_info(dev, "%s read-%s, marking %s read-%s\n", - dev_name(&nd_region->dev), pol, disk->disk_name, pol); - set_disk_ro(disk, nd_region->ro); + dev_info(dev, "%s read-only, marking %s read-only\n", + dev_name(&nd_region->dev), disk->disk_name); + set_disk_ro(disk, 1); return 0; |