linux-kernel - Re: [PATCH 00/12] LLD host_lock-less conversion status for .38

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Message-ID: <AANLkTi=+QhTdWFEtu9UD9AJC_N+UET8i+7F_qzOS5Znt@mail.gmail.com>
Date:	Mon, 20 Dec 2010 11:33:40 -0800
From:	adam radford <aradford@...il.com>
To:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
Cc:	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	James Bottomley <James.Bottomley@...e.de>,
	Jeff Garzik <jeff@...zik.org>, Christoph Hellwig <hch@....de>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Hannes Reinecke <hare@...e.de>,
	Mike Christie <michaelc@...wisc.edu>,
	Mike Anderson <andmike@...ux.vnet.ibm.com>,
	Tejun Heo <tj@...nel.org>, Vasu Dev <vasu.dev@...ux.intel.com>,
	Tim Chen <tim.c.chen@...ux.intel.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Ravi Anand <ravi.anand@...gic.com>,
	Andrew Vasquez <andrew.vasquez@...gic.com>,
	Joe Eykholt <jeykholt@...co.com>,
	James Smart <james.smart@...lex.com>,
	Douglas Gilbert <dgilbert@...erlog.com>,
	Kashyap Desai <Kashyap.Desai@....com>,
	MPTFusionLinux <DL-MPTFusionLinux@....com>
Subject: Re: [PATCH 00/12] LLD host_lock-less conversion status for .38

On Sun, Dec 19, 2010 at 1:21 PM, Nicholas A. Bellinger
<nab@...ux-iscsi.org> wrote:
> *) megaraid_sas: Running in host_lock-less mode with MSI-X interrupts
>
> This has not been tested yet, but I would like to get some review from the LSI
> megaraid_sas folks now that their patches to enable MSI-X interrupts has been sent
> to linux-scsi.
>
> AdamR, any thoughts or comments to add here..?

Nick,

Your patch will not work with the new MegaRAID adapter support I have
sent in recently.  It requires the build IO path be synchronized with
map updates with the host_lock.

-Adam
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