Steven Rostedt wrote:
> > I guess the lock_kernel() approach is the way to go. Fixing a race and
> > de-BKLing procfs are separate exercises...
> >
> > Did the patch work?
>
> Sorry, I forgot to respond, because the test is still running ;)
>
> So yes, it not only ran for three days, it ran for six. I just killed it.
Have you looked at the other paths that touch ->subdir? Namely:
proc_devtree.c:
proc_device_tree_add_node() -- plays games with ->subdir directly
generic.c:
proc_create() -- calls xlate_proc_name() which touches ->subdir and
should therefore probably be called under BKL
proc_register() -- both the call to xlate_proc_name() and the
following accesses to ->subdir should be under BKL
-Mitch
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