---

yaml
---
r: 165913
b: refs/heads/master
c: 1b2da37
h: refs/heads/master
i:
  165911: 044a14f
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 25891f796d8d30f2b86b1e84d78721b44d573d70
+refs/heads/master: 1b2da372b0324b5c604fc8790e70a7efbeacb0b6

trunk/fs/btrfs/ctree.h

@@ -674,6 +674,7 @@ struct btrfs_space_info {
 	u64 bytes_reserved;	/* total bytes the allocator has reserved for
 				   current allocations */
 	u64 bytes_readonly;	/* total bytes that are read only */
+	u64 bytes_super;	/* total bytes reserved for the super blocks */
 
 	/* delalloc accounting */
 	u64 bytes_delalloc;	/* number of bytes reserved for allocation,
@@ -746,6 +747,7 @@ struct btrfs_block_group_cache {
 	spinlock_t lock;
 	u64 pinned;
 	u64 reserved;
+	u64 bytes_super;
 	u64 flags;
 	u64 sectorsize;
 	int extents_thresh;

trunk/fs/btrfs/extent-tree.c

@@ -201,6 +201,7 @@ static int exclude_super_stripes(struct btrfs_root *root,
 		BUG_ON(ret);
 
 		while (nr--) {
+			cache->bytes_super += stripe_len;
 			ret = add_excluded_extent(root, logical[nr],
 						  stripe_len);
 			BUG_ON(ret);
@@ -295,6 +296,9 @@ static int caching_kthread(void *data)
 		return -ENOMEM;
 
 	exclude_super_stripes(extent_root, block_group);
+	spin_lock(&block_group->space_info->lock);
+	block_group->space_info->bytes_super += block_group->bytes_super;
+	spin_unlock(&block_group->space_info->lock);
 
 	last = max_t(u64, block_group->key.objectid, BTRFS_SUPER_INFO_OFFSET);
 
@@ -2785,7 +2789,8 @@ int btrfs_check_metadata_free_space(struct btrfs_root *root)
 	do_div(thresh, 100);
 
 	if (meta_sinfo->bytes_used + meta_sinfo->bytes_reserved +
-	    meta_sinfo->bytes_pinned + meta_sinfo->bytes_readonly > thresh) {
+	    meta_sinfo->bytes_pinned + meta_sinfo->bytes_readonly +
+	    meta_sinfo->bytes_super > thresh) {
 		struct btrfs_trans_handle *trans;
 		if (!meta_sinfo->full) {
 			meta_sinfo->force_alloc = 1;
@@ -2839,7 +2844,7 @@ int btrfs_check_data_free_space(struct btrfs_root *root, struct inode *inode,
 	if (data_sinfo->total_bytes - data_sinfo->bytes_used -
 	    data_sinfo->bytes_delalloc - data_sinfo->bytes_reserved -
 	    data_sinfo->bytes_pinned - data_sinfo->bytes_readonly -
-	    data_sinfo->bytes_may_use < bytes) {
+	    data_sinfo->bytes_may_use - data_sinfo->bytes_super < bytes) {
 		struct btrfs_trans_handle *trans;
 
 		/*
@@ -6957,8 +6962,10 @@ int btrfs_read_block_groups(struct btrfs_root *root)
 		 * time, particularly in the full case.
 		 */
 		if (found_key.offset == btrfs_block_group_used(&cache->item)) {
+			exclude_super_stripes(root, cache);
 			cache->last_byte_to_unpin = (u64)-1;
 			cache->cached = BTRFS_CACHE_FINISHED;
+			free_excluded_extents(root, cache);
 		} else if (btrfs_block_group_used(&cache->item) == 0) {
 			exclude_super_stripes(root, cache);
 			cache->last_byte_to_unpin = (u64)-1;
@@ -6975,6 +6982,10 @@ int btrfs_read_block_groups(struct btrfs_root *root)
 					&space_info);
 		BUG_ON(ret);
 		cache->space_info = space_info;
+		spin_lock(&cache->space_info->lock);
+		cache->space_info->bytes_super += cache->bytes_super;
+		spin_unlock(&cache->space_info->lock);
+
 		down_write(&space_info->groups_sem);
 		list_add_tail(&cache->list, &space_info->block_groups);
 		up_write(&space_info->groups_sem);
@@ -7044,6 +7055,11 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
 	ret = update_space_info(root->fs_info, cache->flags, size, bytes_used,
 				&cache->space_info);
 	BUG_ON(ret);
+
+	spin_lock(&cache->space_info->lock);
+	cache->space_info->bytes_super += cache->bytes_super;
+	spin_unlock(&cache->space_info->lock);
+
 	down_write(&cache->space_info->groups_sem);
 	list_add_tail(&cache->list, &cache->space_info->block_groups);
 	up_write(&cache->space_info->groups_sem);