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author | Chris Mason <chris.mason@oracle.com> | 2007-04-06 19:37:36 (GMT) |
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committer | David Woodhouse <dwmw2@hera.kernel.org> | 2007-04-06 19:37:36 (GMT) |
commit | d6e4a428eb8f92bbb3537ccabadfb1195efb432b (patch) | |
tree | ca408dbd20b38728412b58db5a6ec29aebbc0fe7 /fs/btrfs/inode-item.c | |
parent | 3eb0314dc1053b1ae617dcc8d6d93f776c5baa31 (diff) | |
download | linux-fsl-qoriq-d6e4a428eb8f92bbb3537ccabadfb1195efb432b.tar.xz |
Btrfs: start of support for many FS volumes
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/inode-item.c')
-rw-r--r-- | fs/btrfs/inode-item.c | 26 |
1 files changed, 19 insertions, 7 deletions
diff --git a/fs/btrfs/inode-item.c b/fs/btrfs/inode-item.c index 6bfa980..b276a3b 100644 --- a/fs/btrfs/inode-item.c +++ b/fs/btrfs/inode-item.c @@ -26,15 +26,27 @@ int btrfs_insert_inode(struct btrfs_trans_handle *trans, struct btrfs_root } int btrfs_lookup_inode(struct btrfs_trans_handle *trans, struct btrfs_root - *root, struct btrfs_path *path, u64 objectid, int mod) + *root, struct btrfs_path *path, + struct btrfs_key *location, int mod) { - struct btrfs_key key; int ins_len = mod < 0 ? -1 : 0; int cow = mod != 0; + int ret; + int slot; + struct btrfs_leaf *leaf; + struct btrfs_key found_key; - key.objectid = objectid; - key.flags = 0; - btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY); - key.offset = 0; - return btrfs_search_slot(trans, root, &key, path, ins_len, cow); + ret = btrfs_search_slot(trans, root, location, path, ins_len, cow); + if (ret > 0 && btrfs_key_type(location) == BTRFS_ROOT_ITEM_KEY && + location->offset == (u64)-1 && path->slots[0] != 0) { + slot = path->slots[0] - 1; + leaf = btrfs_buffer_leaf(path->nodes[0]); + btrfs_disk_key_to_cpu(&found_key, &leaf->items[slot].key); + if (found_key.objectid == location->objectid && + btrfs_key_type(&found_key) == btrfs_key_type(location)) { + path->slots[0]--; + return 0; + } + } + return ret; } |