On Mon, 2008-02-04 at 19:25 +0300, Vladislav Bolkhovitin wrote: > James Bottomley wrote: > >>Vladislav Bolkhovitin wrote: > >>So, James, what is your opinion on the above? Or the overall SCSI target > >>project simplicity doesn't matter much for you and you think it's fine > >>to duplicate Linux page cache in the user space to keep the in-kernel > >>part of the project as small as possible? > > > > > > The answers were pretty much contained here > > > > http://marc.info/?l=linux-scsi&m=120164008302435 > > > > and here: > > > > http://marc.info/?l=linux-scsi&m=120171067107293 > > > > Weren't they? > > No, sorry, it doesn't look so for me. They are about performance, but > I'm asking about the overall project's architecture, namely about one > part of it: simplicity. Particularly, what do you think about > duplicating Linux page cache in the user space to have zero-copy cached > I/O? Or can you suggest another architectural solution for that problem > in the STGT's approach? Isn't that an advantage of a user space solution? It simply uses the backing store of whatever device supplies the data. That means it takes advantage of the existing mechanisms for caching. James - To unsubscribe from this list: 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
