On Wed, May 28, 2014 at 11:28:36PM -0400, Martin K. Petersen wrote: > For commands like REQ_COPY we need a way to pass extra information along > with each bio. Like integrity metadata this information must be > available at the bottom of the stack so bi_private does not suffice. > > Rename the existing bi_integrity field to bi_special and make it a union > so we can have different bio extensions for each class of command. > > We previously used bi_integrity != NULL as a way to identify whether a > bio had integrity metadata or not. Introduce a REQ_INTEGRITY to be the > indicator now that bi_special can contain different things. > > In addition, bio_integrity(bio) will now return a pointer to the > integrity payload (when applicable).
Instead of having a union of pointer just make it a void pointer. I also think special is a terribly generic name, but I don't really have a better idea at hand. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
