I would like to keep the patch as is for now, since the Serdes code is using 
the 64 bit jiffies consistently throughout.  The fix solves a real issue 
(modprobe hang) with boards that haven't been QA'ed properly.

Is there a reason to avoid the 64 bit jiffies stuff that should cause us to 
look at a more global effort beyond the scope of this patch?

Mike

-----Original Message-----
From: Roland Dreier [mailto:[email protected]]
Sent: Monday, April 11, 2011 4:25 PM
To: Mike Marciniszyn
Cc: [email protected]
Subject: Re: [PATCH] IB/qib: Prevent driver hang with unprogrammed boards

On Mon, Apr 11, 2011 at 6:45 AM, Mike Marciniszyn
<[email protected]> wrote:
> -              !time_after64(tstart, tstart + msecs_to_jiffies(500))) {
> +              !time_after64(get_jiffies_64(),
> +                       tstart + msecs_to_jiffies(500))) {

By the way, is there any need to use 64-bit jiffies stuff here?

Couldn't this be more cleanly written with just time_is_before_jiffies()?


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