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| author | Arne Jansen | 2012-06-28 18:03:02 +0200 |
|---|---|---|
| committer | Jan Schmidt | 2012-07-12 10:54:21 +0200 |
| commit | bed92eae26ccf280d1a2168b7509447b56675a27 (patch) | |
| tree | 4a852b27746dca2ab0b3646b7d7e050b93502bc5 /fs/btrfs/extent-tree.c | |
| parent | Btrfs: Test code to change the order of delayed-ref processing (diff) | |
| download | kernel-qcow2-linux-bed92eae26ccf280d1a2168b7509447b56675a27.tar.gz kernel-qcow2-linux-bed92eae26ccf280d1a2168b7509447b56675a27.tar.xz kernel-qcow2-linux-bed92eae26ccf280d1a2168b7509447b56675a27.zip | |
Btrfs: qgroup implementation and prototypes
Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Diffstat (limited to 'fs/btrfs/extent-tree.c')
| -rw-r--r-- | fs/btrfs/extent-tree.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index b13f1fbc3733..1a63b830846d 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2409,6 +2409,40 @@ static u64 find_middle(struct rb_root *root) } #endif +int btrfs_delayed_refs_qgroup_accounting(struct btrfs_trans_handle *trans, + struct btrfs_fs_info *fs_info) +{ + struct qgroup_update *qgroup_update; + int ret = 0; + + if (list_empty(&trans->qgroup_ref_list) != + !trans->delayed_ref_elem.seq) { + /* list without seq or seq without list */ + printk(KERN_ERR "btrfs: qgroup accounting update error, list is%s empty, seq is %llu\n", + list_empty(&trans->qgroup_ref_list) ? "" : " not", + trans->delayed_ref_elem.seq); + BUG(); + } + + if (!trans->delayed_ref_elem.seq) + return 0; + + while (!list_empty(&trans->qgroup_ref_list)) { + qgroup_update = list_first_entry(&trans->qgroup_ref_list, + struct qgroup_update, list); + list_del(&qgroup_update->list); + if (!ret) + ret = btrfs_qgroup_account_ref( + trans, fs_info, qgroup_update->node, + qgroup_update->extent_op); + kfree(qgroup_update); + } + + btrfs_put_tree_mod_seq(fs_info, &trans->delayed_ref_elem); + + return ret; +} + /* * this starts processing the delayed reference count updates and * extent insertions we have queued up so far. count can be |