Re: [patch] aio: remove aio-max-nr and instead use the memlock rlimitto limit the number of pages pinned for the aio completion ring

From: Eric Dumazet
Date: Wed Mar 11 2009 - 23:41:48 EST

Benjamin LaHaise a écrit :
> On Thu, Mar 12, 2009 at 04:33:20AM +0100, Eric Dumazet wrote:
>> aio breaks the fget_light() concept too, if process is mono threaded.
> AIO requests cannot use fget_light(). The user space program could very
> well use the close() syscall to destroy the file descriptor while an io
> request is in flight, so you cannot avoid the reference counting overhead.

Yes, you are right, AIO doesnt break fget_light()

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