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Date:   Sat, 21 Nov 2020 15:19:52 -0800
From:   Jakub Kicinski <>
To:     Jens Axboe <>
Cc:     Networking <>
Subject: Re: [PATCH] tun: honor IOCB_NOWAIT flag

On Fri, 20 Nov 2020 07:59:54 -0700 Jens Axboe wrote:
> tun only checks the file O_NONBLOCK flag, but it should also be checking
> the iocb IOCB_NOWAIT flag. Any fops using ->read/write_iter() should check
> both, otherwise it breaks users that correctly expect O_NONBLOCK semantics
> if IOCB_NOWAIT is set.
> Cc:
> Signed-off-by: Jens Axboe <>

Applied, thanks!

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