lightnvm: allow to force mm initialization

[deliverable/linux.git] / drivers / lightnvm / core.c

diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index 33224cb91c5bb98ac7e464b4202dacbac71671c9..9f6acd5d1d2e9359730ad595f92d3e902bc40d17 100644 (file)
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -572,11 +572,13 @@ int nvm_register(struct request_queue *q, char *disk_name,
                }
        }
 
-       ret = nvm_get_sysblock(dev, &dev->sb);
-       if (!ret)
-               pr_err("nvm: device not initialized.\n");
-       else if (ret < 0)
-               pr_err("nvm: err (%d) on device initialization\n", ret);
+       if (dev->identity.cap & NVM_ID_DCAP_BBLKMGMT) {
+               ret = nvm_get_sysblock(dev, &dev->sb);
+               if (!ret)
+                       pr_err("nvm: device not initialized.\n");
+               else if (ret < 0)
+                       pr_err("nvm: err (%d) on device initialization\n", ret);
+       }
 
        /* register device with a supported media manager */
        down_write(&nvm_lock);
@@ -1055,9 +1057,11 @@ static long __nvm_ioctl_dev_init(struct nvm_ioctl_dev_init *init)
        strncpy(info.mmtype, init->mmtype, NVM_MMTYPE_LEN);
        info.fs_ppa.ppa = -1;
 
-       ret = nvm_init_sysblock(dev, &info);
-       if (ret)
-               return ret;
+       if (dev->identity.cap & NVM_ID_DCAP_BBLKMGMT) {
+               ret = nvm_init_sysblock(dev, &info);
+               if (ret)
+                       return ret;
+       }
 
        memcpy(&dev->sb, &info, sizeof(struct nvm_sb_info));
 
@@ -1117,7 +1121,10 @@ static long nvm_ioctl_dev_factory(struct file *file, void __user *arg)
                dev->mt = NULL;
        }
 
-       return nvm_dev_factory(dev, fact.flags);
+       if (dev->identity.cap & NVM_ID_DCAP_BBLKMGMT)
+               return nvm_dev_factory(dev, fact.flags);
+
+       return 0;
 }
 
 static long nvm_ctl_ioctl(struct file *file, uint cmd, unsigned long arg)