Messages in this thread | | | Date | Wed, 19 Dec 2012 16:44:08 +0000 | From | Al Viro <> | Subject | Re: [PATCH] proc: fix inconsistent lock state |
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On Wed, Dec 19, 2012 at 04:13:30AM -0800, Eric W. Biederman wrote:
> Something doesn't feel right. I don't think there should be a path where we get to proc_free_inum from bh context. > > Rcu callbacks should be running in process context (if a special one).
No, they are not. They run from softirq context, which makes for all kinds of interesting kludges being required in various places.
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