tree cf195dc2a83a87b24a495a8cb7357f17f690f117
parent 6f546216e9f9e95d6783547ce6113eb13e2daa54
author Robbie Ko <robbieko@synology.com> 1475805689 +0800
committer Filipe Manana <fdmanana@suse.com> 1487896681 +0000

Btrfs: fix leak of subvolume writers counter

When falling back from a nocow write to a regular cow write, we were
leaking the subvolume writers counter in 2 situations, preventing
snapshot creation from ever completing in the future, as it waits
for that counter to go down to zero before the snapshot creation
starts.

Signed-off-by: Robbie Ko <robbieko@synology.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
[Improved changelog and subject]
Signed-off-by: Filipe Manana <fdmanana@suse.com>