Re: [PATCHSET] block: fix PIO cache coherency bug, take 2
From: Russell King
Date: Mon Jun 05 2006 - 12:37:25 EST
On Mon, Jun 05, 2006 at 11:16:42AM -0500, James Bottomley wrote:
> On Mon, 2006-06-05 at 16:48 +0100, Russell King wrote:
> > When does the zero copy case occur?
> Almost all user initiated I/O. Glibc tends to implement this as mmap
Ah, so you _are_ talking about something different from what I'm
talking about. I'm concentrating _solely_ on the _read_ side,
and all my responses so far have been concerned about that only.
Anyway, I think this discussion has become meaningless since we've
been talking at cross purposes for the entire thread.
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/