This is an updated patchset for large command support to the block layer: http://marc.info/?l=linux-scsi&m=120817127118449&w=2 We rarely handle large commands. So for optimization, a struct request still has a static array for a command. rq_init sets rq->cmd pointer to the static array. In short, rq_init() does rq->cmd = rq->__cmd; So we can access to rq->cmd and rq->cmd_len as before. This change requires everyone to initialize the request in a proper way (that is, just doing a memset() will not work). Now we have rq_init() that works for any path so this patchset can cleanly convert users of requests on the stack or kmalloced requests to use it (the previous patchset does it in a hacky way): http://marc.info/?l=linux-scsi&m=120911792725876&w=2 This patchset is against Jens' for-linus branch. #1-#4 patches can be applied via Jens' tree now. #5 patch is for IDE. It cleanly can be applied to both Bart's latest quilt tree and Jens' tree though Bart's quilt tree has some pending IDE patches. #4 patch depends on #4. #6 patch depends on #1-#5. I guess that the easiest way to apply this patchset would be: 1. Pushing Bart's quilt tree to mainline. 2. Rebasing Jens' tree to mainline. 3. Pushing this patchset via Jens' tree. Jens and Bart, let me know if I can do something to make the process easier. Bart, I will try to push the patchset to remove the requests on the stack for 2.6.27: http://marc.info/?l=linux-ide&m=120882410712466&w=2 -- 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
