diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index c38734a..171458a 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1028,12 +1028,21 @@ struct btrfs_space_info {
 	wait_queue_head_t wait;
 };
 
+#define	BTRFS_BLOCK_RSV_GLOBAL		1
+#define BTRFS_BLOCK_RSV_DELALLOC	2
+#define BTRFS_BLOCK_RSV_TRANS		3
+#define BTRFS_BLOCK_RSV_CHUNK		4
+#define BTRFS_BLOCK_RSV_DELOPS		5
+#define BTRFS_BLOCK_RSV_EMPTY		6
+#define BTRFS_BLOCK_RSV_TEMP		7
+
 struct btrfs_block_rsv {
 	u64 size;
 	u64 reserved;
 	struct btrfs_space_info *space_info;
 	spinlock_t lock;
-	unsigned int full;
+	unsigned short full;
+	unsigned short type;
 };
 
 /*
@@ -2874,8 +2883,9 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes);
 void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes);
 int btrfs_delalloc_reserve_space(struct inode *inode, u64 num_bytes);
 void btrfs_delalloc_release_space(struct inode *inode, u64 num_bytes);
-void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv);
-struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root);
+void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type);
+struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root,
+					      unsigned short type);
 void btrfs_free_block_rsv(struct btrfs_root *root,
 			  struct btrfs_block_rsv *rsv);
 int btrfs_block_rsv_add(struct btrfs_root *root,
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 07d5eeb..eb768c4 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -650,7 +650,7 @@ static int btrfs_delayed_inode_reserve_metadata(
 	 * we're accounted for.
 	 */
 	if (!src_rsv || (!trans->bytes_reserved &&
-	    src_rsv != &root->fs_info->delalloc_block_rsv)) {
+			 src_rsv->type != BTRFS_BLOCK_RSV_DELALLOC)) {
 		ret = btrfs_block_rsv_add_noflush(root, dst_rsv, num_bytes);
 		/*
 		 * Since we're under a transaction reserve_metadata_bytes could
@@ -668,7 +668,7 @@ static int btrfs_delayed_inode_reserve_metadata(
 						      num_bytes, 1);
 		}
 		return ret;
-	} else if (src_rsv == &root->fs_info->delalloc_block_rsv) {
+	} else if (src_rsv->type == BTRFS_BLOCK_RSV_DELALLOC) {
 		spin_lock(&BTRFS_I(inode)->lock);
 		if (test_and_clear_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
 				       &BTRFS_I(inode)->runtime_flags)) {
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 29c69e6..0c0f8eb 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2017,12 +2017,15 @@ int open_ctree(struct super_block *sb,
 	INIT_LIST_HEAD(&fs_info->space_info);
 	INIT_LIST_HEAD(&fs_info->tree_mod_seq_list);
 	btrfs_mapping_init(&fs_info->mapping_tree);
-	btrfs_init_block_rsv(&fs_info->global_block_rsv);
-	btrfs_init_block_rsv(&fs_info->delalloc_block_rsv);
-	btrfs_init_block_rsv(&fs_info->trans_block_rsv);
-	btrfs_init_block_rsv(&fs_info->chunk_block_rsv);
-	btrfs_init_block_rsv(&fs_info->empty_block_rsv);
-	btrfs_init_block_rsv(&fs_info->delayed_block_rsv);
+	btrfs_init_block_rsv(&fs_info->global_block_rsv,
+			     BTRFS_BLOCK_RSV_GLOBAL);
+	btrfs_init_block_rsv(&fs_info->delalloc_block_rsv,
+			     BTRFS_BLOCK_RSV_DELALLOC);
+	btrfs_init_block_rsv(&fs_info->trans_block_rsv, BTRFS_BLOCK_RSV_TRANS);
+	btrfs_init_block_rsv(&fs_info->chunk_block_rsv, BTRFS_BLOCK_RSV_CHUNK);
+	btrfs_init_block_rsv(&fs_info->empty_block_rsv, BTRFS_BLOCK_RSV_EMPTY);
+	btrfs_init_block_rsv(&fs_info->delayed_block_rsv,
+			     BTRFS_BLOCK_RSV_DELOPS);
 	atomic_set(&fs_info->nr_async_submits, 0);
 	atomic_set(&fs_info->async_delalloc_pages, 0);
 	atomic_set(&fs_info->async_submit_draining, 0);
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index ba58024..840bfee 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4114,13 +4114,15 @@ static int block_rsv_migrate_bytes(struct btrfs_block_rsv *src,
 	return 0;
 }
 
-void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv)
+void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type)
 {
 	memset(rsv, 0, sizeof(*rsv));
 	spin_lock_init(&rsv->lock);
+	rsv->type = type;
 }
 
-struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root)
+struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root,
+					      unsigned short type)
 {
 	struct btrfs_block_rsv *block_rsv;
 	struct btrfs_fs_info *fs_info = root->fs_info;
@@ -4129,7 +4131,7 @@ struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_root *root)
 	if (!block_rsv)
 		return NULL;
 
-	btrfs_init_block_rsv(block_rsv);
+	btrfs_init_block_rsv(block_rsv, type);
 	block_rsv->space_info = __find_space_info(fs_info,
 						  BTRFS_BLOCK_GROUP_METADATA);
 	return block_rsv;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index e954737..d494c11 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2197,7 +2197,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
 	int ret;
 
 	if (!root->orphan_block_rsv) {
-		block_rsv = btrfs_alloc_block_rsv(root);
+		block_rsv = btrfs_alloc_block_rsv(root, BTRFS_BLOCK_RSV_TEMP);
 		if (!block_rsv)
 			return -ENOMEM;
 	}
@@ -3060,7 +3060,7 @@ out:
 static void __unlink_end_trans(struct btrfs_trans_handle *trans,
 			       struct btrfs_root *root)
 {
-	if (trans->block_rsv == &root->fs_info->global_block_rsv) {
+	if (trans->block_rsv->type == BTRFS_BLOCK_RSV_GLOBAL) {
 		btrfs_block_rsv_release(root, trans->block_rsv,
 					trans->bytes_reserved);
 		trans->block_rsv = &root->fs_info->trans_block_rsv;
@@ -3767,7 +3767,7 @@ void btrfs_evict_inode(struct inode *inode)
 		goto no_delete;
 	}
 
-	rsv = btrfs_alloc_block_rsv(root);
+	rsv = btrfs_alloc_block_rsv(root, BTRFS_BLOCK_RSV_TEMP);
 	if (!rsv) {
 		btrfs_orphan_del(NULL, inode);
 		goto no_delete;
@@ -6783,7 +6783,7 @@ static int btrfs_truncate(struct inode *inode)
 	 * 3) fs_info->trans_block_rsv - this will have 1 items worth left for
 	 * updating the inode.
 	 */
-	rsv = btrfs_alloc_block_rsv(root);
+	rsv = btrfs_alloc_block_rsv(root, BTRFS_BLOCK_RSV_TEMP);
 	if (!rsv)
 		return -ENOMEM;
 	rsv->size = min_size;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index a1fbca0..3a16327 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -516,7 +516,8 @@ static int create_snapshot(struct btrfs_root *root, struct dentry *dentry,
 	if (!pending_snapshot)
 		return -ENOMEM;
 
-	btrfs_init_block_rsv(&pending_snapshot->block_rsv);
+	btrfs_init_block_rsv(&pending_snapshot->block_rsv,
+			     BTRFS_BLOCK_RSV_TEMP);
 	pending_snapshot->dentry = dentry;
 	pending_snapshot->root = root;
 	pending_snapshot->readonly = readonly;
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index c5dbd91..f193096 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3674,7 +3674,8 @@ int prepare_to_relocate(struct reloc_control *rc)
 	struct btrfs_trans_handle *trans;
 	int ret;
 
-	rc->block_rsv = btrfs_alloc_block_rsv(rc->extent_root);
+	rc->block_rsv = btrfs_alloc_block_rsv(rc->extent_root,
+					      BTRFS_BLOCK_RSV_TEMP);
 	if (!rc->block_rsv)
 		return -ENOMEM;
 
