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Diffstat (limited to 'fs/btrfs/qgroup.c')
-rw-r--r--fs/btrfs/qgroup.c69
1 files changed, 47 insertions, 22 deletions
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 9fb758d5077a..1874a6d2e6f5 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1882,8 +1882,8 @@ static int qgroup_update_counters(struct btrfs_fs_info *fs_info,
cur_old_count = btrfs_qgroup_get_old_refcnt(qg, seq);
cur_new_count = btrfs_qgroup_get_new_refcnt(qg, seq);
- trace_qgroup_update_counters(fs_info, qg->qgroupid,
- cur_old_count, cur_new_count);
+ trace_qgroup_update_counters(fs_info, qg, cur_old_count,
+ cur_new_count);
/* Rfer update part */
if (cur_old_count == 0 && cur_new_count > 0) {
@@ -2014,8 +2014,8 @@ btrfs_qgroup_account_extent(struct btrfs_trans_handle *trans,
BUG_ON(!fs_info->quota_root);
- trace_btrfs_qgroup_account_extent(fs_info, bytenr, num_bytes,
- nr_old_roots, nr_new_roots);
+ trace_btrfs_qgroup_account_extent(fs_info, trans->transid, bytenr,
+ num_bytes, nr_old_roots, nr_new_roots);
qgroups = ulist_alloc(GFP_NOFS);
if (!qgroups) {
@@ -2580,6 +2580,21 @@ out:
}
/*
+ * Check if the leaf is the last leaf. Which means all node pointers
+ * are at their last position.
+ */
+static bool is_last_leaf(struct btrfs_path *path)
+{
+ int i;
+
+ for (i = 1; i < BTRFS_MAX_LEVEL && path->nodes[i]; i++) {
+ if (path->slots[i] != btrfs_header_nritems(path->nodes[i]) - 1)
+ return false;
+ }
+ return true;
+}
+
+/*
* returns < 0 on error, 0 when more leafs are to be scanned.
* returns 1 when done.
*/
@@ -2590,8 +2605,8 @@ qgroup_rescan_leaf(struct btrfs_fs_info *fs_info, struct btrfs_path *path,
struct btrfs_key found;
struct extent_buffer *scratch_leaf = NULL;
struct ulist *roots = NULL;
- struct seq_list tree_mod_seq_elem = SEQ_LIST_INIT(tree_mod_seq_elem);
u64 num_bytes;
+ bool done;
int slot;
int ret;
@@ -2620,12 +2635,12 @@ qgroup_rescan_leaf(struct btrfs_fs_info *fs_info, struct btrfs_path *path,
mutex_unlock(&fs_info->qgroup_rescan_lock);
return ret;
}
+ done = is_last_leaf(path);
btrfs_item_key_to_cpu(path->nodes[0], &found,
btrfs_header_nritems(path->nodes[0]) - 1);
fs_info->qgroup_rescan_progress.objectid = found.objectid + 1;
- btrfs_get_tree_mod_seq(fs_info, &tree_mod_seq_elem);
scratch_leaf = btrfs_clone_extent_buffer(path->nodes[0]);
if (!scratch_leaf) {
ret = -ENOMEM;
@@ -2664,8 +2679,9 @@ out:
btrfs_tree_read_unlock_blocking(scratch_leaf);
free_extent_buffer(scratch_leaf);
}
- btrfs_put_tree_mod_seq(fs_info, &tree_mod_seq_elem);
+ if (done && !ret)
+ ret = 1;
return ret;
}
@@ -2681,6 +2697,12 @@ static void btrfs_qgroup_rescan_worker(struct btrfs_work *work)
path = btrfs_alloc_path();
if (!path)
goto out;
+ /*
+ * Rescan should only search for commit root, and any later difference
+ * should be recorded by qgroup
+ */
+ path->search_commit_root = 1;
+ path->skip_locking = 1;
err = 0;
while (!err && !btrfs_fs_closing(fs_info)) {
@@ -2760,26 +2782,36 @@ qgroup_rescan_init(struct btrfs_fs_info *fs_info, u64 progress_objectid,
{
int ret = 0;
- if (!init_flags &&
- (!(fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) ||
- !(fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_ON))) {
- ret = -EINVAL;
- goto err;
+ if (!init_flags) {
+ /* we're resuming qgroup rescan at mount time */
+ if (!(fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN))
+ btrfs_warn(fs_info,
+ "qgroup rescan init failed, qgroup is not enabled");
+ else if (!(fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_ON))
+ btrfs_warn(fs_info,
+ "qgroup rescan init failed, qgroup rescan is not queued");
+ return -EINVAL;
}
mutex_lock(&fs_info->qgroup_rescan_lock);
spin_lock(&fs_info->qgroup_lock);
if (init_flags) {
- if (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
+ if (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) {
+ btrfs_warn(fs_info,
+ "qgroup rescan is already in progress");
ret = -EINPROGRESS;
- else if (!(fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_ON))
+ } else if (!(fs_info->qgroup_flags &
+ BTRFS_QGROUP_STATUS_FLAG_ON)) {
+ btrfs_warn(fs_info,
+ "qgroup rescan init failed, qgroup is not enabled");
ret = -EINVAL;
+ }
if (ret) {
spin_unlock(&fs_info->qgroup_lock);
mutex_unlock(&fs_info->qgroup_rescan_lock);
- goto err;
+ return ret;
}
fs_info->qgroup_flags |= BTRFS_QGROUP_STATUS_FLAG_RESCAN;
}
@@ -2798,13 +2830,6 @@ qgroup_rescan_init(struct btrfs_fs_info *fs_info, u64 progress_objectid,
btrfs_init_work(&fs_info->qgroup_rescan_work,
btrfs_qgroup_rescan_helper,
btrfs_qgroup_rescan_worker, NULL, NULL);
-
- if (ret) {
-err:
- btrfs_info(fs_info, "qgroup_rescan_init failed with %d", ret);
- return ret;
- }
-
return 0;
}