From mboxrd@z Thu Jan  1 00:00:00 1970
From: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: Re: MLX4 Cq Question
Date: Tue, 21 May 2013 13:43:55 +0300
Message-ID: <519B4FEB.5090701@mellanox.com>
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Cc: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>, Eli Cohen <eli-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>, Roland Dreier <roland-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Tom Tucker <tom-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>, "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
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On 21/05/2013 13:42, Bart Van Assche wrote:
> On 05/21/13 11:40, Or Gerlitz wrote:
>> 2. is possible in the Linux kernel for one hard irq callback to flash on
>> CPU X while another hard irq callback is running on the same CPU?
>
> I think that from kernel 2.6.35 on MSI IRQs are no longer nested. See 
> also 
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=753649dbc49345a73a2454c770a3f2d54d11aec6 
> or http://lwn.net/Articles/380931/

thanks, so suppose we agree on that, still the patch makes sense as the 
race is there, but does the patch has to change?

Or.
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