Re: [PATCH v2] Use atomic_t and wait_event to track dquot pincount

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

On Wed, Sep 24, 2008 at 06:03:22PM +1000, Lachlan McIlroy wrote:
> Pete clearly demonstrated to me that the sv_wait is being prematurely
> woken up when it should not be.  There may be an underlying problem or
> this could just be another peculiarity of the Linux kernel.  Either way
> Pete will continue to look into this and whatever the explanation turns
> out to be, we deperately need a way to prevent our customers from
> running into this deadlock.  Even if there is another problem lurking
> this code change is fine and if nothing else will serve as a performance
> improvement.

Folks, please at least invest half the time you spend flaming each other
into looking at underlying causes ;-)