[parisc-linux] rmap: parisc __flush_dcache_page

[Andrea Arcangeli]

On Thu, Apr 08, 2004 at 09:40:37AM -0500, James Bottomley wrote:
> Whatever seems most convenient that won't impact the flushing fast path,
> I suppose.  It's one of the hottest paths in the system since all data
> transfers go through it for user visibility.

you'd need to take a semaphore there to be safe, so it's basically
unfixable since you can't sleep or just trylock.