netdev - Re: [PATCH] iscsi: respond to netlink with unicast when appropriate

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Message-ID: <yq1zi27u92y.fsf@oracle.com>
Date:   Thu, 12 Apr 2018 22:35:49 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Chris Leech <cleech@...hat.com>
Cc:     <linux-scsi@...r.kernel.org>, <netdev@...r.kernel.org>,
        Lee Duncan <lduncan@...e.com>, <open-iscsi@...glegroups.com>
Subject: Re: [PATCH] iscsi: respond to netlink with unicast when appropriate


Chris,

> Instead of always multicasting responses, send a unicast netlink message
> directed at the correct pid.  This will be needed if we ever want to
> support multiple userspace processes interacting with the kernel over
> iSCSI netlink simultaneously.  Limitations can currently be seen if you
> attempt to run multiple iscsistart commands in parallel.
>
> We've fixed up the userspace issues in iscsistart that prevented
> multiple instances from running, so now attempts to speed up booting by
> bringing up multiple iscsi sessions at once in the initramfs are just
> running into misrouted responses that this fixes.

Applied to 4.17/scsi-fixes. Thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering