Messages in this thread | | | Date | Thu, 24 Feb 2011 19:10:13 +0000 | From | Al Viro <> | Subject | Re: [PATCH 0/3] Fixes for vfs-scale and vfs-automount |
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On Thu, Feb 24, 2011 at 06:07:33PM +0800, Ian Kent wrote:
> Yes, that's a problem. > > Previously the dcache_lock would have blocked on the dput() ... mmm, I'd > missed that so far, although Nick didn't talk with me about his changes > very much at all and I didn't pay enough attention to his patch series > along the way, oops!
Actually, dcache_lock blocks only the _final_ dput(). I.e. one that has refcount going to 0. Not the case here, so that's a problem without RCU stuff as well.
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