Messages in this thread | | | Date | Fri, 16 Apr 2010 11:57:11 +0800 | From | Li Zefan <> | Subject | Re: lockdep warning on block tree for-2.6.35 branch |
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Divyesh Shah : > Hi Gui, > Thanks for the report. I can reproduce this and have a patch that > fixes it and makes the warning go away. My understanding of what was > happening is that the stats_lock for the root cfqg was not getting > initialized and hence was missing the static lock_class_key > declaration. This is because we call blkio_group_init() only when > dynamically allocating new cfqg which does not cover the root cfqg. > I'll send out the patch next. >
We just found out the cause and was about to make a fix. :)
-- Li
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