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| author | Yan, Zheng <zheng.yan@oracle.com> | 2010-05-16 10:49:58 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-05-25 10:34:52 -0400 |
| commit | d68fc57b7e3245cfacf2e3b47acfed1946a11786 (patch) | |
| tree | c2572fcd935017440c8370c8a12ceb49a7fc4f1f /fs/btrfs/root-tree.c | |
| parent | 8929ecfa50f266163832eeacfbc3642ed5eb83b6 (diff) | |
| download | lwn-d68fc57b7e3245cfacf2e3b47acfed1946a11786.tar.gz lwn-d68fc57b7e3245cfacf2e3b47acfed1946a11786.zip | |
Btrfs: Metadata reservation for orphan inodes
reserve metadata space for handling orphan inodes
Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/root-tree.c')
| -rw-r--r-- | fs/btrfs/root-tree.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c index 67fa2d29d663..b91ccd972644 100644 --- a/fs/btrfs/root-tree.c +++ b/fs/btrfs/root-tree.c @@ -259,6 +259,8 @@ int btrfs_find_orphan_roots(struct btrfs_root *tree_root) struct extent_buffer *leaf; struct btrfs_path *path; struct btrfs_key key; + struct btrfs_key root_key; + struct btrfs_root *root; int err = 0; int ret; @@ -270,6 +272,9 @@ int btrfs_find_orphan_roots(struct btrfs_root *tree_root) key.type = BTRFS_ORPHAN_ITEM_KEY; key.offset = 0; + root_key.type = BTRFS_ROOT_ITEM_KEY; + root_key.offset = (u64)-1; + while (1) { ret = btrfs_search_slot(NULL, tree_root, &key, path, 0, 0); if (ret < 0) { @@ -294,13 +299,25 @@ int btrfs_find_orphan_roots(struct btrfs_root *tree_root) key.type != BTRFS_ORPHAN_ITEM_KEY) break; - ret = btrfs_find_dead_roots(tree_root, key.offset); - if (ret) { + root_key.objectid = key.offset; + key.offset++; + + root = btrfs_read_fs_root_no_name(tree_root->fs_info, + &root_key); + if (!IS_ERR(root)) + continue; + + ret = PTR_ERR(root); + if (ret != -ENOENT) { err = ret; break; } - key.offset++; + ret = btrfs_find_dead_roots(tree_root, root_key.objectid); + if (ret) { + err = ret; + break; + } } btrfs_free_path(path); |