From 6f72c7e20dbaea55f04546de69586c84a3654503 Mon Sep 17 00:00:00 2001 From: Arne Jansen Date: Wed, 14 Sep 2011 15:58:21 +0200 Subject: Btrfs: add qgroup inheritance When creating a subvolume or snapshot, it is necessary to initialize the qgroup account with a copy of some other (tracking) qgroup. This patch adds parameters to the ioctls to pass the information from which qgroup to inherit. Signed-off-by: Arne Jansen --- fs/btrfs/transaction.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'fs/btrfs/transaction.c') diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index f1e29fb..1272839 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -990,6 +990,14 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, } } + ret = btrfs_qgroup_inherit(trans, fs_info, root->root_key.objectid, + objectid, pending->inherit); + kfree(pending->inherit); + if (ret) { + pending->error = ret; + goto fail; + } + key.objectid = objectid; key.offset = (u64)-1; key.type = BTRFS_ROOT_ITEM_KEY; -- cgit v1.1