Messages in this thread | | | Date | Thu, 12 Mar 2009 04:40:12 +0100 | From | Eric Dumazet <> | Subject | Re: [patch] aio: remove aio-max-nr and instead use the memlock rlimit to limit the number of pages pinned for the aio completion ring |
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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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