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From: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Jack Morgenstein
	<jackm-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
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>
Subject: Re: MLX4 Cq Question
Date: Tue, 21 May 2013 13:43:55 +0300	[thread overview]
Message-ID: <519B4FEB.5090701@mellanox.com> (raw)
In-Reply-To: <519B4F81.9040108-HInyCGIudOg@public.gmane.org>

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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  parent reply	other threads:[~2013-05-21 10:43 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-17 19:25 MLX4 Cq Question Tom Tucker
     [not found] ` <51968438.7070907-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2013-05-17 21:37   ` Roland Dreier
     [not found]     ` <CAG4TOxNi0PxxskqXgxRhMPG0bmr+sS-x0_RG-zKyvLW1LNzoBg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2013-05-19  6:09       ` Or Gerlitz
2013-05-20 14:53       ` Jack Morgenstein
     [not found]         ` <201305201753.10806.jackm-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2013-05-20 16:07           ` Roland Dreier
2013-05-20 19:51           ` Tom Tucker
     [not found]             ` <519A7EB2.8090206-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2013-05-20 19:58               ` Hefty, Sean
     [not found]                 ` <1828884A29C6694DAF28B7E6B8A823736FD2955D-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2013-05-20 20:10                   ` Tom Tucker
2013-05-20 20:11                   ` Or Gerlitz
2013-05-21  9:40           ` Or Gerlitz
     [not found]             ` <519B4104.4090102-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-05-21 10:42               ` Bart Van Assche
     [not found]                 ` <519B4F81.9040108-HInyCGIudOg@public.gmane.org>
2013-05-21 10:43                   ` Or Gerlitz [this message]
     [not found]                     ` <519B4FEB.5090701-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2013-05-21 14:13                       ` Jack Morgenstein
     [not found]                         ` <201305211713.24370.jackm-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org>
2013-05-21 15:10                           ` Or Gerlitz

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