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Re: [patch 2/2] ipvs deadlock fix

To: akpm@xxxxxxxx
Subject: Re: [patch 2/2] ipvs deadlock fix
From: Horms <horms@xxxxxxxxxxxx>
Date: Mon, 31 Jan 2005 12:36:10 +0300
Cc: davem@xxxxxxxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <200501310633.j0V6X1l01385@mail.osdl.org>
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On Sun, Jan 30, 2005 at 10:33:02PM -0800, akpm@xxxxxxxx wrote:
> 
> 
> update_defense_level() is calling si_meminfo() from timer context.  But
> si_meminfo takes non-irq-safe locks.
> 
> Move it all to keventd context.  

Would I be right in thinking that the offending lock is bdev_lock which
is grabbed in nr_blockdev_pages() and thus that this is not an issue
for 2.4 whose si_meminfo() does not have such a call?

-- 
Horms

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