On Fri, Apr 17, 2020 at 4:23 PM David Sterba <dsterba@xxxxxxx> wrote:
>
> On Fri, Apr 17, 2020 at 03:40:12PM +0100, fdmanana@xxxxxxxxxx wrote:
> > From: Filipe Manana <fdmanana@xxxxxxxx>
> >
> > When cleaning pinned extents right before deleting an unused block group,
> > we check if there's still a previous transaction running and if so we
> > increment its reference count before using it for cleaning pinned ranges
> > in its pinned extents iotree. However we ended up never decrementing the
> > reference count after using the transaction, resulting in a memory leak.
> >
> > Fix it by decrementing the reference count.
> >
> > Fixes: fe119a6eeb6705 ("btrfs: switch to per-transaction pinned extents")
> > Signed-off-by: Filipe Manana <fdmanana@xxxxxxxx>
>
> Added to misc-next, thanks.
This is actually wrong, I'll send a v2 soon.
