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| author | Josef Bacik | 2007-08-29 21:47:34 +0200 |
|---|---|---|
| committer | David Woodhouse | 2007-08-29 21:47:34 +0200 |
| commit | 58176a9604c5db1784d2c979aea472b3be40b6f0 (patch) | |
| tree | a0d887c81b2f174de619dfefca19674a43756971 /fs/btrfs/extent-tree.c | |
| parent | Btrfs: Add delayed allocation to the extent based page tree code (diff) | |
| download | kernel-qcow2-linux-58176a9604c5db1784d2c979aea472b3be40b6f0.tar.gz kernel-qcow2-linux-58176a9604c5db1784d2c979aea472b3be40b6f0.tar.xz kernel-qcow2-linux-58176a9604c5db1784d2c979aea472b3be40b6f0.zip | |
Btrfs: Add per-root block accounting and sysfs entries
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index c31e84d42653..ff3f7c2be605 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -858,16 +858,23 @@ static int __free_extent(struct btrfs_trans_handle *trans, struct btrfs_root btrfs_set_extent_refs(ei, refs); btrfs_mark_buffer_dirty(path->nodes[0]); if (refs == 0) { - u64 super_blocks_used; + u64 super_blocks_used, root_blocks_used; if (pin) { ret = pin_down_block(root, blocknr, 0); BUG_ON(ret); } + /* block accounting for super block */ super_blocks_used = btrfs_super_blocks_used(&info->super_copy); btrfs_set_super_blocks_used(&info->super_copy, super_blocks_used - num_blocks); + + /* block accounting for root item */ + root_blocks_used = btrfs_root_blocks_used(&root->root_item); + btrfs_set_root_blocks_used(&root->root_item, + root_blocks_used - num_blocks); + ret = btrfs_del_item(trans, extent_root, path); if (ret) { return ret; @@ -1175,7 +1182,7 @@ int btrfs_alloc_extent(struct btrfs_trans_handle *trans, { int ret; int pending_ret; - u64 super_blocks_used; + u64 super_blocks_used, root_blocks_used; u64 search_start = 0; struct btrfs_fs_info *info = root->fs_info; struct btrfs_root *extent_root = info->extent_root; @@ -1193,10 +1200,16 @@ int btrfs_alloc_extent(struct btrfs_trans_handle *trans, if (ret) return ret; + /* block accounting for super block */ super_blocks_used = btrfs_super_blocks_used(&info->super_copy); btrfs_set_super_blocks_used(&info->super_copy, super_blocks_used + num_blocks); + /* block accounting for root item */ + root_blocks_used = btrfs_root_blocks_used(&root->root_item); + btrfs_set_root_blocks_used(&root->root_item, root_blocks_used + + num_blocks); + if (root == extent_root) { BUG_ON(num_blocks != 1); set_radix_bit(&root->fs_info->extent_ins_radix, ins->objectid); |