dm table: clean dm_get_device and move exports

There is no need for __table_get_device to be factored out.
Also move the exports to the end of their respective functions.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

1 files changed, 13 insertions, 20 deletions

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 8dc67555e736..d58b200a3531 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -157,6 +157,7 @@ void *dm_vcalloc(unsigned long nmemb, unsigned long elem_size)
 
         return addr;
 }
+EXPORT_SYMBOL(dm_vcalloc);
 
 /*
  * highs, and targets are managed as dynamic arrays during a
@@ -277,6 +278,7 @@ void dm_table_get(struct dm_table *t)
 {
         atomic_inc(&t->holders);
 }
+EXPORT_SYMBOL(dm_table_get);
 
 void dm_table_put(struct dm_table *t)
 {
@@ -286,6 +288,7 @@ void dm_table_put(struct dm_table *t)
         smp_mb__before_atomic_dec();
         atomic_dec(&t->holders);
 }
+EXPORT_SYMBOL(dm_table_put);
 
 /*
  * Checks to see if we need to extend highs or targets.
@@ -451,13 +454,14 @@ static int upgrade_mode(struct dm_dev_internal *dd, fmode_t new_mode,
  * Add a device to the list, or just increment the usage count if
  * it's already present.
  */
-static int __table_get_device(struct dm_table *t, struct dm_target *ti,
-                      const char *path, fmode_t mode, struct dm_dev **result)
+int dm_get_device(struct dm_target *ti, const char *path, fmode_t mode,
+                  struct dm_dev **result)
 {
         int r;
         dev_t uninitialized_var(dev);
         struct dm_dev_internal *dd;
         unsigned int major, minor;
+        struct dm_table *t = ti->table;
 
         BUG_ON(!t);
 
@@ -505,6 +509,7 @@ static int __table_get_device(struct dm_table *t, struct dm_target *ti,
         *result = &dd->dm_dev;
         return 0;
 }
+EXPORT_SYMBOL(dm_get_device);
 
 int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
                          sector_t start, sector_t len, void *data)
@@ -543,15 +548,8 @@ int dm_set_device_limits(struct dm_target *ti, struct dm_dev *dev,
 }
 EXPORT_SYMBOL_GPL(dm_set_device_limits);
 
-int dm_get_device(struct dm_target *ti, const char *path, fmode_t mode,
-                  struct dm_dev **result)
-{
-        return __table_get_device(ti->table, ti, path, mode, result);
-}
-
-
 /*
- * Decrement a devices use count and remove it if necessary.
+ * Decrement a device's use count and remove it if necessary.
  */
 void dm_put_device(struct dm_target *ti, struct dm_dev *d)
 {
@@ -564,6 +562,7 @@ void dm_put_device(struct dm_target *ti, struct dm_dev *d)
                 kfree(dd);
         }
 }
+EXPORT_SYMBOL(dm_put_device);
 
 /*
  * Checks to see if the target joins onto the end of the table.
@@ -1074,11 +1073,13 @@ void dm_table_event(struct dm_table *t)
                 t->event_fn(t->event_context);
         mutex_unlock(&_event_lock);
 }
+EXPORT_SYMBOL(dm_table_event);
 
 sector_t dm_table_get_size(struct dm_table *t)
 {
         return t->num_targets ? (t->highs[t->num_targets - 1] + 1) : 0;
 }
+EXPORT_SYMBOL(dm_table_get_size);
 
 struct dm_target *dm_table_get_target(struct dm_table *t, unsigned int index)
 {
@@ -1234,6 +1235,7 @@ fmode_t dm_table_get_mode(struct dm_table *t)
 {
         return t->mode;
 }
+EXPORT_SYMBOL(dm_table_get_mode);
 
 static void suspend_targets(struct dm_table *t, unsigned postsuspend)
 {
@@ -1342,6 +1344,7 @@ struct mapped_device *dm_table_get_md(struct dm_table *t)
 {
         return t->md;
 }
+EXPORT_SYMBOL(dm_table_get_md);
 
 static int device_discard_capable(struct dm_target *ti, struct dm_dev *dev,
                                   sector_t start, sector_t len, void *data)
@@ -1379,13 +1382,3 @@ bool dm_table_supports_discards(struct dm_table *t)
 
         return 0;
 }
-
-EXPORT_SYMBOL(dm_vcalloc);
-EXPORT_SYMBOL(dm_get_device);
-EXPORT_SYMBOL(dm_put_device);
-EXPORT_SYMBOL(dm_table_event);
-EXPORT_SYMBOL(dm_table_get_size);
-EXPORT_SYMBOL(dm_table_get_mode);
-EXPORT_SYMBOL(dm_table_get_md);
-EXPORT_SYMBOL(dm_table_put);
-EXPORT_SYMBOL(dm_table_get);