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authorArne Jansen <sensille@gmx.net>2011-09-14 15:58:21 +0200
committerJan Schmidt <list.btrfs@jan-o-sch.net>2012-07-12 10:54:40 +0200
commit6f72c7e20dbaea55f04546de69586c84a3654503 (patch)
tree4d8e13968765f4a4381a0fe91a4fb157128cbbc5 /fs/btrfs/transaction.c
parent5d13a37bd5327220e13329943d1228acfbe5934a (diff)
downloadop-kernel-dev-6f72c7e20dbaea55f04546de69586c84a3654503.zip
op-kernel-dev-6f72c7e20dbaea55f04546de69586c84a3654503.tar.gz
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.c8
1 files changed, 8 insertions, 0 deletions
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;
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