btrfs: unexport the temporary exported functions

These were renamed and exported to facilitate logical migration of
different code chunks into block-group.c.  Now that all the users are in
one file go ahead and rename them back, move the code around, and make
them static.
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/block-group.c

@@ -21,7 +21,7 @@
  *
  * Should be called with balance_lock held
  */
-u64 btrfs_get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags)
+static u64 get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags)
 {
 	struct btrfs_balance_control *bctl = fs_info->balance_ctl;
 	u64 target = 0;
@@ -62,7 +62,7 @@ static u64 btrfs_reduce_alloc_profile(struct btrfs_fs_info *fs_info, u64 flags)
 	 * reduce to the target profile
 	 */
 	spin_lock(&fs_info->balance_lock);
-	target = btrfs_get_restripe_target(fs_info, flags);
+	target = get_restripe_target(fs_info, flags);
 	if (target) {
 		/* Pick target profile only if it's already available */
 		if ((flags & target) & BTRFS_EXTENDED_PROFILE_MASK) {
@@ -424,7 +424,7 @@ int btrfs_wait_block_group_cache_done(struct btrfs_block_group_cache *cache)
 }
 
 #ifdef CONFIG_BTRFS_DEBUG
-void btrfs_fragment_free_space(struct btrfs_block_group_cache *block_group)
+static void fragment_free_space(struct btrfs_block_group_cache *block_group)
 {
 	struct btrfs_fs_info *fs_info = block_group->fs_info;
 	u64 start = block_group->key.objectid;
@@ -661,7 +661,7 @@ static noinline void caching_thread(struct btrfs_work *work)
 		block_group->space_info->bytes_used += bytes_used >> 1;
 		spin_unlock(&block_group->lock);
 		spin_unlock(&block_group->space_info->lock);
-		btrfs_fragment_free_space(block_group);
+		fragment_free_space(block_group);
 	}
 #endif
 
@@ -768,7 +768,7 @@ int btrfs_cache_block_group(struct btrfs_block_group_cache *cache,
 			cache->space_info->bytes_used += bytes_used >> 1;
 			spin_unlock(&cache->lock);
 			spin_unlock(&cache->space_info->lock);
-			btrfs_fragment_free_space(cache);
+			fragment_free_space(cache);
 		}
 #endif
 		mutex_unlock(&caching_ctl->mutex);
@@ -1180,7 +1180,7 @@ struct btrfs_trans_handle *btrfs_start_trans_remove_block_group(
  * data in this block group. That check should be done by relocation routine,
  * not this function.
  */
-int __btrfs_inc_block_group_ro(struct btrfs_block_group_cache *cache, int force)
+static int inc_block_group_ro(struct btrfs_block_group_cache *cache, int force)
 {
 	struct btrfs_space_info *sinfo = cache->space_info;
 	u64 num_bytes;
@@ -1296,7 +1296,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info)
 		spin_unlock(&block_group->lock);
 
 		/* We don't want to force the issue, only flip if it's ok. */
-		ret = __btrfs_inc_block_group_ro(block_group, 0);
+		ret = inc_block_group_ro(block_group, 0);
 		up_write(&space_info->groups_sem);
 		if (ret < 0) {
 			ret = 0;
@@ -1822,7 +1822,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
 
 		set_avail_alloc_bits(info, cache->flags);
 		if (btrfs_chunk_readonly(info, cache->key.objectid)) {
-			__btrfs_inc_block_group_ro(cache, 1);
+			inc_block_group_ro(cache, 1);
 		} else if (btrfs_block_group_used(&cache->item) == 0) {
 			ASSERT(list_empty(&cache->bg_list));
 			btrfs_mark_bg_unused(cache);
@@ -1843,11 +1843,11 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
 		list_for_each_entry(cache,
 				&space_info->block_groups[BTRFS_RAID_RAID0],
 				list)
-			__btrfs_inc_block_group_ro(cache, 1);
+			inc_block_group_ro(cache, 1);
 		list_for_each_entry(cache,
 				&space_info->block_groups[BTRFS_RAID_SINGLE],
 				list)
-			__btrfs_inc_block_group_ro(cache, 1);
+			inc_block_group_ro(cache, 1);
 	}
 
 	btrfs_init_global_block_rsv(info);
@@ -1936,7 +1936,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, u64 bytes_used,
 		u64 new_bytes_used = size - bytes_used;
 
 		bytes_used += new_bytes_used >> 1;
-		btrfs_fragment_free_space(cache);
+		fragment_free_space(cache);
 	}
 #endif
 	/*
@@ -1982,7 +1982,7 @@ static u64 update_block_group_flags(struct btrfs_fs_info *fs_info, u64 flags)
 	 * if restripe for this chunk_type is on pick target profile and
 	 * return, otherwise do the usual balance
 	 */
-	stripped = btrfs_get_restripe_target(fs_info, flags);
+	stripped = get_restripe_target(fs_info, flags);
 	if (stripped)
 		return extended_to_chunk(stripped);
 
@@ -2070,14 +2070,14 @@ int btrfs_inc_block_group_ro(struct btrfs_block_group_cache *cache)
 			goto out;
 	}
 
-	ret = __btrfs_inc_block_group_ro(cache, 0);
+	ret = inc_block_group_ro(cache, 0);
 	if (!ret)
 		goto out;
 	alloc_flags = btrfs_get_alloc_profile(fs_info, cache->space_info->flags);
 	ret = btrfs_chunk_alloc(trans, alloc_flags, CHUNK_ALLOC_FORCE);
 	if (ret < 0)
 		goto out;
-	ret = __btrfs_inc_block_group_ro(cache, 0);
+	ret = inc_block_group_ro(cache, 0);
 out:
 	if (cache->flags & BTRFS_BLOCK_GROUP_SYSTEM) {
 		alloc_flags = update_block_group_flags(fs_info, cache->flags);

fs/btrfs/block-group.h

@@ -166,7 +166,6 @@ static inline int btrfs_should_fragment_free_space(
 	       (btrfs_test_opt(fs_info, FRAGMENT_DATA) &&
 		block_group->flags &  BTRFS_BLOCK_GROUP_DATA);
 }
-void btrfs_fragment_free_space(struct btrfs_block_group_cache *block_group);
 #endif
 
 struct btrfs_block_group_cache *btrfs_lookup_first_block_group(
@@ -246,7 +245,4 @@ static inline int btrfs_block_group_cache_done(
 		cache->cached == BTRFS_CACHE_ERROR;
 }
 
-int __btrfs_inc_block_group_ro(struct btrfs_block_group_cache *cache, int force);
-u64 btrfs_get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags);
-
 #endif /* BTRFS_BLOCK_GROUP_H */