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Btrfs: automatic rescan after "quota enable" command 

When qgroup tracking is enabled, we do an automatic cycle of the new rescan
mechanism.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Jan Schmidt 2013-04-25 16:04:52 +00:00 committed by Josef Bacik
parent 2f2320360b
commit 3d7b5a2882
1 changed files with 11 additions and 0 deletions
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11
fs/btrfs/qgroup.c
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@ -1493,10 +1493,14 @@ int btrfs_run_qgroups(struct btrfs_trans_handle *trans,
{
struct btrfs_root *quota_root = fs_info->quota_root;
int ret = 0;
int start_rescan_worker = 0;
if (!quota_root)
goto out;
if (!fs_info->quota_enabled && fs_info->pending_quota_state)
start_rescan_worker = 1;
fs_info->quota_enabled = fs_info->pending_quota_state;
spin_lock(&fs_info->qgroup_lock);
@ -1522,6 +1526,13 @@ int btrfs_run_qgroups(struct btrfs_trans_handle *trans,
if (ret)
fs_info->qgroup_flags |= BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT;
if (!ret && start_rescan_worker) {
ret = btrfs_qgroup_rescan(fs_info);
if (ret)
pr_err("btrfs: start rescan quota failed: %d\n", ret);
ret = 0;
}
out:
return ret;