blockdev: rename block-dirty-bitmap-clear transaction handlers

Rename block-dirty-bitmap-clear transaction handlers to reuse them for
x-block-dirty-bitmap-merge transaction in the following patch.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: John Snow <jsnow@redhat.com>

blockdev.c

@@ -2027,7 +2027,7 @@ static void block_dirty_bitmap_clear_prepare(BlkActionState *common,
     bdrv_clear_dirty_bitmap(state->bitmap, &state->backup);
 }
 
-static void block_dirty_bitmap_clear_abort(BlkActionState *common)
+static void block_dirty_bitmap_restore(BlkActionState *common)
 {
     BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
                                              common, common);
@@ -2037,7 +2037,7 @@ static void block_dirty_bitmap_clear_abort(BlkActionState *common)
     }
 }
 
-static void block_dirty_bitmap_clear_commit(BlkActionState *common)
+static void block_dirty_bitmap_free_backup(BlkActionState *common)
 {
     BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
                                              common, common);
@@ -2171,8 +2171,8 @@ static const BlkActionOps actions[] = {
     [TRANSACTION_ACTION_KIND_BLOCK_DIRTY_BITMAP_CLEAR] = {
         .instance_size = sizeof(BlockDirtyBitmapState),
         .prepare = block_dirty_bitmap_clear_prepare,
-        .commit = block_dirty_bitmap_clear_commit,
-        .abort = block_dirty_bitmap_clear_abort,
+        .commit = block_dirty_bitmap_free_backup,
+        .abort = block_dirty_bitmap_restore,
     },
     [TRANSACTION_ACTION_KIND_X_BLOCK_DIRTY_BITMAP_ENABLE] = {
         .instance_size = sizeof(BlockDirtyBitmapState),