On Sun, Apr 28, 2024 at 08:07:09PM +0100, Al Viro wrote: > Christoph, do you have any plans along those lines for swap devices? > If they are not going to grow holder_ops, I'd say we should switch > to O_EXCL open and be done with that; zram is in the same situation, > AFAICS. holder_ops right now are used for fs freezing, fs syncing and dead device notification. None of this is useful for swap, as is the resize notification I plan to add eventually.