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btrfs: destroy qgroup extent records on transaction abort

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We clean up the delayed references when we abort a transaction but we
leave the pending qgroup extent records behind, leaking memory.

This patch destroys the extent records when we destroy the delayed refs
and makes sure ensure they're gone before releasing the transaction.

Fixes: 3368d001ba ("btrfs: qgroup: Record possible quota-related extent for qgroup.")
CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
[ Rebased to latest upstream, remove to_qgroup() helper, use
  rbtree_postorder_for_each_entry_safe() wrapper ]
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Jeff Mahoney
2020-02-11 15:25:37 +08:00
committed by David Sterba
parent 52e29e3310
commit 81f7eb00ff
4 changed files with 17 additions and 0 deletions
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fs/btrfs/disk-io.c
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@@ -4276,6 +4276,7 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
cond_resched();
spin_lock(&delayed_refs->lock);
}
btrfs_qgroup_destroy_extent_records(trans);
spin_unlock(&delayed_refs->lock);