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| author | Arne Jansen <sensille@gmx.net> | 2011-09-14 15:58:21 +0200 |
|---|---|---|
| committer | Jan Schmidt <list.btrfs@jan-o-sch.net> | 2012-07-12 10:54:40 +0200 |
| commit | 6f72c7e20dbaea55f04546de69586c84a3654503 (patch) | |
| tree | 4d8e13968765f4a4381a0fe91a4fb157128cbbc5 /fs/btrfs/transaction.c | |
| parent | 5d13a37bd5327220e13329943d1228acfbe5934a (diff) | |
| download | lwn-6f72c7e20dbaea55f04546de69586c84a3654503.tar.gz lwn-6f72c7e20dbaea55f04546de69586c84a3654503.zip | |
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 <sensille@gmx.net>
Diffstat (limited to 'fs/btrfs/transaction.c')
| -rw-r--r-- | fs/btrfs/transaction.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index f1e29fbd5317..127283913a42 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; |