|| ||FUJITA Tomonori <email@example.com>|
|| ||[PATCH 0/6] add large command support to the block layer|
|| ||Sat, 26 Apr 2008 01:23:13 +0900|
|| ||firstname.lastname@example.org, email@example.com,
This is an updated patchset for large command support to the block
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):
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
Bart, I will try to push the patchset to remove the requests on the
stack for 2.6.27:
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