diff options
| author | Chris Mason <chris.mason@oracle.com> | 2007-04-04 15:27:52 -0400 |
|---|---|---|
| committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-04-04 15:27:52 -0400 |
| commit | b1a4d96509a78ad234d94e0b914b289c60d2969d (patch) | |
| tree | a6e9ff68dc1ff89097bf56355585f23bec70f847 /fs/btrfs/extent-tree.c | |
| parent | e8f05c4508aed906146919f2efa89242a7f90a8b (diff) | |
Btrfs: tweak the inode-map and free extent search starts on cold mount
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 | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index cd40a08dd8a..688aa861a92 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -339,13 +339,30 @@ static int find_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root int total_needed = num_blocks; int level; + path = btrfs_alloc_path(); + ins->flags = 0; + btrfs_set_key_type(ins, BTRFS_EXTENT_ITEM_KEY); + level = btrfs_header_level(btrfs_buffer_header(root->node)); total_needed += (level + 1) * 3; + if (root->fs_info->last_insert.objectid == 0 && search_end == (u64)-1) { + struct btrfs_disk_key *last_key; + btrfs_init_path(path); + ins->objectid = (u64)-1; + ins->offset = (u64)-1; + ret = btrfs_search_slot(trans, root, ins, path, 0, 0); + if (ret < 0) + goto error; + BUG_ON(ret == 0); + if (path->slots[0] > 0) + path->slots[0]--; + l = btrfs_buffer_leaf(path->nodes[0]); + last_key = &l->items[path->slots[0]].key; + search_start = btrfs_disk_key_objectid(last_key); + } if (root->fs_info->last_insert.objectid > search_start) search_start = root->fs_info->last_insert.objectid; - ins->flags = 0; - btrfs_set_key_type(ins, BTRFS_EXTENT_ITEM_KEY); path = btrfs_alloc_path(); check_failed: |