diff options
| -rw-r--r-- | fs/btrfs/ctree.h | 5 | ||||
| -rw-r--r-- | fs/btrfs/extent-tree.c | 10 | ||||
| -rw-r--r-- | fs/btrfs/super.c | 11 |
3 files changed, 23 insertions, 3 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 29c2009..014fd52 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -675,7 +675,8 @@ struct btrfs_block_group_item { struct btrfs_space_info { u64 flags; - u64 total_bytes; /* total bytes in the space */ + u64 total_bytes; /* total bytes in the space, + this doesn't take mirrors into account */ u64 bytes_used; /* total bytes used, this does't take mirrors into account */ u64 bytes_pinned; /* total bytes pinned, will be freed when the @@ -687,6 +688,8 @@ struct btrfs_space_info { u64 bytes_may_use; /* number of bytes that may be used for delalloc/allocations */ u64 disk_used; /* total bytes used on disk */ + u64 disk_total; /* total bytes on disk, takes mirrors into + account */ int full; /* indicates that we cannot allocate any more chunks for this space */ diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index c6a5d90..4669c6f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2763,6 +2763,7 @@ static int update_space_info(struct btrfs_fs_info *info, u64 flags, if (found) { spin_lock(&found->lock); found->total_bytes += total_bytes; + found->disk_total += total_bytes * factor; found->bytes_used += bytes_used; found->disk_used += bytes_used * factor; found->full = 0; @@ -2782,6 +2783,7 @@ static int update_space_info(struct btrfs_fs_info *info, u64 flags, BTRFS_BLOCK_GROUP_SYSTEM | BTRFS_BLOCK_GROUP_METADATA); found->total_bytes = total_bytes; + found->disk_total = total_bytes * factor; found->bytes_used = bytes_used; found->disk_used = bytes_used * factor; found->bytes_pinned = 0; @@ -8095,6 +8097,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, struct btrfs_free_cluster *cluster; struct btrfs_key key; int ret; + int factor; root = root->fs_info->extent_root; @@ -8103,6 +8106,12 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, BUG_ON(!block_group->ro); memcpy(&key, &block_group->key, sizeof(key)); + if (block_group->flags & (BTRFS_BLOCK_GROUP_DUP | + BTRFS_BLOCK_GROUP_RAID1 | + BTRFS_BLOCK_GROUP_RAID10)) + factor = 2; + else + factor = 1; /* make sure this block group isn't part of an allocation cluster */ cluster = &root->fs_info->data_alloc_cluster; @@ -8143,6 +8152,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, spin_lock(&block_group->space_info->lock); block_group->space_info->total_bytes -= block_group->key.offset; block_group->space_info->bytes_readonly -= block_group->key.offset; + block_group->space_info->disk_total -= block_group->key.offset * factor; spin_unlock(&block_group->space_info->lock); btrfs_clear_space_info_full(root->fs_info); diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index f2393b3..afab6ca 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -716,18 +716,25 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf) struct list_head *head = &root->fs_info->space_info; struct btrfs_space_info *found; u64 total_used = 0; + u64 total_used_data = 0; int bits = dentry->d_sb->s_blocksize_bits; __be32 *fsid = (__be32 *)root->fs_info->fsid; rcu_read_lock(); - list_for_each_entry_rcu(found, head, list) + list_for_each_entry_rcu(found, head, list) { + if (found->flags & (BTRFS_BLOCK_GROUP_METADATA | + BTRFS_BLOCK_GROUP_SYSTEM)) + total_used_data += found->disk_total; + else + total_used_data += found->disk_used; total_used += found->disk_used; + } rcu_read_unlock(); buf->f_namelen = BTRFS_NAME_LEN; buf->f_blocks = btrfs_super_total_bytes(disk_super) >> bits; buf->f_bfree = buf->f_blocks - (total_used >> bits); - buf->f_bavail = buf->f_bfree; + buf->f_bavail = buf->f_blocks - (total_used_data >> bits); buf->f_bsize = dentry->d_sb->s_blocksize; buf->f_type = BTRFS_SUPER_MAGIC; |