Re: [PATCH] Fix dirty page accounting in redirty_page_for_writepage()

Christoph Lameter
2009-04-30T14:25:50Z

On Thu, 30 Apr 2009, Ingo Molnar wrote:

> The patch below makes the fallback/slowpath irq safe.

Yes but sometimes you are already irq safe and such a fallback would
create significant irq/enable/disable stack operations etc overhead for
architectures that are using the fallback.

I think we really need another __xxx op here. Especially since these
operations are often in critical code paths.