From: Patrick McHardy <kaber@trash.net>
To: James.Smart@Emulex.Com
Cc: linux-scsi@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC] Netlink and user-space buffer pointers
Date: Wed, 19 Apr 2006 19:16:10 +0200 [thread overview]
Message-ID: <4446705A.2080101@trash.net> (raw)
In-Reply-To: <44466EA7.3030206@emulex.com>
James Smart wrote:
>
>
> Patrick McHardy wrote:
>
>> This might be problematic, since there is a shared receive-queue in
>> the kernel netlink message might get processed in the context of
>> a different process. I didn't find any spots where ISCSI passes
>> pointers over netlink, can you point me to it?
>
>
> Please explain... Would the pid be set erroneously as well ? Ignoring
> the kernel-user space pointer issue, we're going to have a tight
> pid + request_id relationship being maintained across multiple messages.
> We'll also be depending on the pid events for clean up if an app dies.
> So I hope pid is consistent.
The PID contained in the netlink message itself is correct, current->pid
might not be.
next prev parent reply other threads:[~2006-04-19 17:16 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-17 20:44 [RFC] FC Transport : Async Events via netlink interface James Smart
2006-04-18 16:01 ` Mike Anderson
2006-04-19 12:52 ` James Smart
2006-04-19 12:57 ` [RFC] Netlink and user-space buffer pointers James Smart
2006-04-19 16:22 ` Patrick McHardy
2006-04-19 17:08 ` James Smart
2006-04-19 17:16 ` Patrick McHardy [this message]
2006-04-19 16:26 ` Stephen Hemminger
2006-04-19 17:05 ` James Smart
2006-04-19 21:32 ` Mike Christie
2006-04-20 14:33 ` James Smart
2006-04-20 17:45 ` Mike Christie
2006-04-20 17:52 ` Mike Christie
2006-04-20 17:58 ` Mike Christie
2006-04-20 20:03 ` James Smart
2006-04-20 20:35 ` Mike Christie
2006-04-20 20:40 ` Mike Christie
2006-04-20 21:41 ` Mike Christie
2006-04-20 21:51 ` Mike Christie
2006-04-20 23:07 ` Mike Christie
2006-04-20 23:44 ` Andrew Vasquez
2006-04-20 20:18 ` Douglas Gilbert
2006-04-19 14:59 ` [RFC] FC Transport : Async Events via netlink interface Matthew Wilcox
2006-04-19 16:11 ` James Smart
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