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| author | Chris Mason <chris.mason@oracle.com> | 2007-04-04 23:27:52 +0400 |
|---|---|---|
| committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-04-04 23:27:52 +0400 |
| commit | b1a4d96509a78ad234d94e0b914b289c60d2969d (patch) | |
| tree | a6e9ff68dc1ff89097bf56355585f23bec70f847 /fs/btrfs/inode-map.c | |
| parent | e8f05c4508aed906146919f2efa89242a7f90a8b (diff) | |
| download | linux-b1a4d96509a78ad234d94e0b914b289c60d2969d.tar.xz | |
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/inode-map.c')
| -rw-r--r-- | fs/btrfs/inode-map.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index b3de823eb628..329edb42897e 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -22,17 +22,31 @@ int btrfs_find_free_objectid(struct btrfs_trans_handle *trans, struct btrfs_key search_key; u64 search_start = dirid; - if (fs_root->fs_info->last_inode_alloc_dirid == dirid) - search_start = fs_root->fs_info->last_inode_alloc; + path = btrfs_alloc_path(); + BUG_ON(!path); + search_key.flags = 0; + btrfs_set_key_type(&search_key, BTRFS_INODE_MAP_ITEM_KEY); + search_start = fs_root->fs_info->last_inode_alloc; + if (search_start == 0) { + struct btrfs_disk_key *last_key; + btrfs_init_path(path); + search_key.objectid = (u64)-1; + search_key.offset = (u64)-1; + ret = btrfs_search_slot(trans, root, &search_key, 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); + } search_start = max(search_start, BTRFS_FIRST_FREE_OBJECTID); search_key.objectid = search_start; - search_key.flags = 0; - btrfs_set_key_type(&search_key, BTRFS_INODE_MAP_ITEM_KEY); search_key.offset = 0; - path = btrfs_alloc_path(); - BUG_ON(!path); btrfs_init_path(path); start_found = 0; ret = btrfs_search_slot(trans, root, &search_key, path, 0, 0); @@ -79,7 +93,6 @@ int btrfs_find_free_objectid(struct btrfs_trans_handle *trans, // FIXME -ENOSPC found: root->fs_info->last_inode_alloc = *objectid; - root->fs_info->last_inode_alloc_dirid = dirid; btrfs_release_path(root, path); btrfs_free_path(path); BUG_ON(*objectid < search_start); |