On Sat, Apr 26 2008, FUJITA Tomonori wrote: > 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 I've applied all patches to the for-linus branch, it should go up soonish. If anyone has problems with this, please holler SOON. -- Jens Axboe -- 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
