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 > internally. 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. -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
