Re: fs: dcookie: freeing active timer

[Al Viro]

On Thu, Apr 24, 2014 at 12:56:36PM -0400, Sasha Levin wrote:
> Hi all,
> 
> While fuzzing with trinity inside a KVM tools guest running the latest -next
> kernel I've stumbled on the following:

> [  191.871535] kmem_cache_destroy (mm/slab_common.c:363)
> [  191.871535] dcookie_unregister (fs/dcookies.c:302 fs/dcookies.c:343)

So it's dcookie_exit() doing kmem_cache_destroy(dcookie_cache) while
some timer is active?

Why does that code bother with destroying/creating that sucker dynamically?
Is there any point at all?
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