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-rw-r--r--fs/btrfs/transaction.c23
1 files changed, 12 insertions, 11 deletions
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 02592c6ce755..b83e8ae38cfc 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1229,10 +1229,6 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans)
if (ret)
return ret;
- ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
- if (ret)
- return ret;
-
ret = btrfs_run_dev_stats(trans);
if (ret)
return ret;
@@ -1247,10 +1243,6 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans)
if (ret)
return ret;
- /* run_qgroups might have added some more refs */
- ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
- if (ret)
- return ret;
again:
while (!list_empty(&fs_info->dirty_cowonly_roots)) {
struct btrfs_root *root;
@@ -1265,15 +1257,24 @@ again:
ret = update_cowonly_root(trans, root);
if (ret)
return ret;
- ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
- if (ret)
- return ret;
}
+ /* Now flush any delayed refs generated by updating all of the roots */
+ ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
+ if (ret)
+ return ret;
+
while (!list_empty(dirty_bgs) || !list_empty(io_bgs)) {
ret = btrfs_write_dirty_block_groups(trans);
if (ret)
return ret;
+
+ /*
+ * We're writing the dirty block groups, which could generate
+ * delayed refs, which could generate more dirty block groups,
+ * so we want to keep this flushing in this loop to make sure
+ * everything gets run.
+ */
ret = btrfs_run_delayed_refs(trans, (unsigned long)-1);
if (ret)
return ret;