Re: [PATCH] aio: fix the "too late munmap()" race

[Benjamin LaHaise]

On Thu, Mar 08, 2012 at 05:51:19PM +0000, Al Viro wrote:
> Since actual freeing of these suckers is RCU-delayed, we don't need to
> bump ioctx refcount when request goes into list for async removal.
> All we need is rcu_read_lock held just over the ->ctx_lock-protected
> area in aio_fput_routine().
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

Signed-off-by: Benjamin LaHaise <bcrl@xxxxxxxxx>

Looks good.  As with the previous patch, I instrumented and tested the code 
to trigger fput_work() with no issues encountered.

		-ben
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