On 24/06/13 15:28, Konrad Rzeszutek Wilk wrote: > On Sat, Jun 22, 2013 at 09:59:17AM +0200, Roger Pau Monne wrote: >> With the introduction of indirect segments we can receive requests >> with a number of segments bigger than the maximum number of allowed >> iovecs in a bios, so make sure that blkback doesn't try to allocate a >> bios with more iovecs than BIO_MAX_PAGES > > Shouldn't we just gate the feature-indirect-descriptor value to > take this into account? > > What happens if the nseg is > BIO_MAX_PAGES? Do we "lose" the request > for the remaining segments?
No, we just allocate several bios in order to send the request to the underlying device. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
