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From: Steve Wise <swise-10udUCx4aRo@public.gmane.org>
To: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: rdma provider module references
Date: Wed, 15 Dec 2010 10:15:05 -0600	[thread overview]
Message-ID: <4D08E989.5020307@aoot.com> (raw)

Hey Roland,

I notice that if I have a user rdma application running that has an rdma connection using iw_cxgb3, then the iw_cxgb3 
module reference count is bumped and thus it cannot be unloaded.  However when I have an NFSRDMA connection that 
utilizes iw_cxgb3, the module reference count is not bumped, and iw_cxgb3 can erroneously be unloaded while the NFSRDMA 
connection is still active, causing a crash.

My question is more of what is the right thing to do here.

Should the module refcnt be the way to prohibit a provider from being unloaded?

Thoughts?

Thanks,

Steve.
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             reply	other threads:[~2010-12-15 16:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-15 16:15 Steve Wise [this message]
     [not found] ` <4D08E989.5020307-10udUCx4aRo@public.gmane.org>
2010-12-15 17:09   ` rdma provider module references Roland Dreier
     [not found]     ` <adapqt3gdzb.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2010-12-15 18:53       ` Steve Wise
2010-12-16 15:34       ` Steve Wise
2010-12-16 15:48       ` Steve Wise

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