Re: [PATCH v7 1/4] spinlock: A new lockref structure for locklessupdate of refcount

From: Waiman Long
Date: Thu Aug 29 2013 - 11:20:59 EST


On 08/28/2013 09:40 PM, Linus Torvalds wrote:
Just FYI: I've merged two preparatory patches in my tree for the whole
lockref thing. Instead of applying your four patches as-is during the
merge window, I ended up writing two patches that introduce the
concept and use it in the dentry code *without* introducing any of the
new semantics yet.

Waiman, I attributed the patches to you, even if they don't actually
look much like any of the patches you sent out. And because I was
trying very hard to make sure that no actual semantics changed, my
version doesn't have the dget_parent() lockless update code, for
example. I literally just did a search-and-replace of "->d_count" with
"->d_lockref.count" and then I fixed up a few things by hand (undid
one replacement in a comment, and used the helper functions where they
were semantically identical).

You don't have to rewrite your patches if you don't want to, I'm
planning on cherry-picking the actual code changes during the merge
window.

Linus

Thanks for merging the 2 preparatory patches for me. I will rebase my patches with the latest linux git tree. A new v8 patch set will be sent out sometime next week. I am looking forward to the v3.12 merge window which I think is coming soon.

Cheer,
Longman
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