UBI: re-name volumes_mutex to device_mutex

The mutex essencially protects the entire UBI device, so the
old @volumes_mutex name is a little misleading.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

5 files changed, 23 insertions, 23 deletions

diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index e0e8f47f1674..5d8fda1bda7f 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -806,7 +806,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
 
         mutex_init(&ubi->buf_mutex);
         mutex_init(&ubi->ckvol_mutex);
-        mutex_init(&ubi->volumes_mutex);
+        mutex_init(&ubi->device_mutex);
         spin_lock_init(&ubi->volumes_lock);
 
         ubi_msg("attaching mtd%d to ubi%d", mtd->index, ubi_num);
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 8087b0462771..1024c106c899 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -558,7 +558,7 @@ static long vol_cdev_ioctl(struct file *file, unsigned int cmd,
                 break;
         }
 
-        /* Set volume property command*/
+        /* Set volume property command */
         case UBI_IOCSETPROP:
         {
                 struct ubi_set_prop_req req;
@@ -571,9 +571,9 @@ static long vol_cdev_ioctl(struct file *file, unsigned int cmd,
                 }
                 switch (req.property) {
                 case UBI_PROP_DIRECT_WRITE:
-                        mutex_lock(&ubi->volumes_mutex);
+                        mutex_lock(&ubi->device_mutex);
                         desc->vol->direct_writes = !!req.value;
-                        mutex_unlock(&ubi->volumes_mutex);
+                        mutex_unlock(&ubi->device_mutex);
                         break;
                 default:
                         err = -EINVAL;
@@ -810,7 +810,9 @@ static int rename_volumes(struct ubi_device *ubi,
                         re->desc->vol->vol_id, re->desc->vol->name);
         }
 
+        mutex_lock(&ubi->device_mutex);
         err = ubi_rename_volumes(ubi, &rename_list);
+        mutex_unlock(&ubi->device_mutex);
 
 out_free:
         list_for_each_entry_safe(re, re1, &rename_list, list) {
@@ -854,9 +856,9 @@ static long ubi_cdev_ioctl(struct file *file, unsigned int cmd,
                 if (err)
                         break;
 
-                mutex_lock(&ubi->volumes_mutex);
+                mutex_lock(&ubi->device_mutex);
                 err = ubi_create_volume(ubi, &req);
-                mutex_unlock(&ubi->volumes_mutex);
+                mutex_unlock(&ubi->device_mutex);
                 if (err)
                         break;
 
@@ -885,9 +887,9 @@ static long ubi_cdev_ioctl(struct file *file, unsigned int cmd,
                         break;
                 }
 
-                mutex_lock(&ubi->volumes_mutex);
+                mutex_lock(&ubi->device_mutex);
                 err = ubi_remove_volume(desc, 0);
-                mutex_unlock(&ubi->volumes_mutex);
+                mutex_unlock(&ubi->device_mutex);
 
                 /*
                  * The volume is deleted (unless an error occurred), and the
@@ -924,9 +926,9 @@ static long ubi_cdev_ioctl(struct file *file, unsigned int cmd,
                 pebs = div_u64(req.bytes + desc->vol->usable_leb_size - 1,
                                desc->vol->usable_leb_size);
 
-                mutex_lock(&ubi->volumes_mutex);
+                mutex_lock(&ubi->device_mutex);
                 err = ubi_resize_volume(desc, pebs);
-                mutex_unlock(&ubi->volumes_mutex);
+                mutex_unlock(&ubi->device_mutex);
                 ubi_close_volume(desc);
                 break;
         }
@@ -950,9 +952,7 @@ static long ubi_cdev_ioctl(struct file *file, unsigned int cmd,
                         break;
                 }
 
-                mutex_lock(&ubi->volumes_mutex);
                 err = rename_volumes(ubi, req);
-                mutex_unlock(&ubi->volumes_mutex);
                 kfree(req);
                 break;
         }
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 485c73f850c1..76ec79b156a1 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -305,9 +305,9 @@ struct ubi_wl_entry;
  * @vtbl_slots: how many slots are available in the volume table
  * @vtbl_size: size of the volume table in bytes
  * @vtbl: in-RAM volume table copy
- * @volumes_mutex: protects on-flash volume table and serializes volume
- *                 changes, like creation, deletion, update, re-size,
- *                 re-name and set property
+ * @device_mutex: protects on-flash volume table and serializes volume
+ *                creation, deletion, update, re-size, re-name and set
+ *                property
  *
  * @max_ec: current highest erase counter value
  * @mean_ec: current mean erase counter value
@@ -388,7 +388,7 @@ struct ubi_device {
         int vtbl_slots;
         int vtbl_size;
         struct ubi_vtbl_record *vtbl;
-        struct mutex volumes_mutex;
+        struct mutex device_mutex;
 
         int max_ec;
         /* Note, mean_ec is not updated run-time - should be fixed */
diff --git a/drivers/mtd/ubi/upd.c b/drivers/mtd/ubi/upd.c
index 6b4d1ae891ae..dce1d92d8e9d 100644
--- a/drivers/mtd/ubi/upd.c
+++ b/drivers/mtd/ubi/upd.c
@@ -68,9 +68,9 @@ static int set_update_marker(struct ubi_device *ubi, struct ubi_volume *vol)
                sizeof(struct ubi_vtbl_record));
         vtbl_rec.upd_marker = 1;
 
-        mutex_lock(&ubi->volumes_mutex);
+        mutex_lock(&ubi->device_mutex);
         err = ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec);
-        mutex_unlock(&ubi->volumes_mutex);
+        mutex_unlock(&ubi->device_mutex);
         vol->upd_marker = 1;
         return err;
 }
@@ -109,9 +109,9 @@ static int clear_update_marker(struct ubi_device *ubi, struct ubi_volume *vol,
                         vol->last_eb_bytes = vol->usable_leb_size;
         }
 
-        mutex_lock(&ubi->volumes_mutex);
+        mutex_lock(&ubi->device_mutex);
         err = ubi_change_vtbl_record(ubi, vol->vol_id, &vtbl_rec);
-        mutex_unlock(&ubi->volumes_mutex);
+        mutex_unlock(&ubi->device_mutex);
         vol->upd_marker = 0;
         return err;
 }
diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c
index df5483562b7a..328c1242920e 100644
--- a/drivers/mtd/ubi/vmt.c
+++ b/drivers/mtd/ubi/vmt.c
@@ -198,7 +198,7 @@ static void volume_sysfs_close(struct ubi_volume *vol)
  * %UBI_VOL_NUM_AUTO, this function automatically assign ID to the new volume
  * and saves it in @req->vol_id. Returns zero in case of success and a negative
  * error code in case of failure. Note, the caller has to have the
- * @ubi->volumes_mutex locked.
+ * @ubi->device_mutex locked.
  */
 int ubi_create_volume(struct ubi_device *ubi, struct ubi_mkvol_req *req)
 {
@@ -403,7 +403,7 @@ out_unlock:
  *
  * This function removes volume described by @desc. The volume has to be opened
  * in "exclusive" mode. Returns zero in case of success and a negative error
- * code in case of failure. The caller has to have the @ubi->volumes_mutex
+ * code in case of failure. The caller has to have the @ubi->device_mutex
  * locked.
  */
 int ubi_remove_volume(struct ubi_volume_desc *desc, int no_vtbl)
@@ -485,7 +485,7 @@ out_unlock:
  *
  * This function re-sizes the volume and returns zero in case of success, and a
  * negative error code in case of failure. The caller has to have the
- * @ubi->volumes_mutex locked.
+ * @ubi->device_mutex locked.
  */
 int ubi_resize_volume(struct ubi_volume_desc *desc, int reserved_pebs)
 {