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>

...

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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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1

fs/btrfs/disk-io.c

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13

fs/btrfs/qgroup.c

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1

fs/btrfs/qgroup.h

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2

fs/btrfs/transaction.c

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