> Christoph> So what you mean is "swap on flash" ? Defintively sounds > Christoph> like an interesting topic, although I'm not too sure it's > Christoph> all that filesystem-related. I wouldn't want to call it swap, as this carries with it block-io connotations. It's really mmap on flash.
Yes it is really mmap on flash. But you are "swapping" pages from RAM to be mmap'ed on flash. Also the flash-io complexities are similar to the block-io layer. I think "swap on flash" is fair. Though that might be confused with making swap work on a NAND flash, which is very much like the current block-io approach. "Mmappable swap on flash" is more exact, I suppose.
> You need either a block translation layer, Are you suggesting to go through the block layer to reach the flash?
Well the obvious route would be to have this management layer use the MTD, I can't see anything wrong with that.
> or a (swap) filesystem that > understands flash peculiarities in order to make such a thing work. > The standard Linux swap format will not work. Correct. BTW, you may want to have a look at my "[RFC] VM: I have a dream..." thread.
Interesting. This idea does allow for swap to be access directly. - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
