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Date:	Sat, 25 Jan 2014 20:41:41 -0800 (PST)
From:	David Rientjes <>
To:	Dave Hansen <>
Subject: Re: [linux-next][PATCH] mm: slub: work around unneeded lockdep

On Fri, 24 Jan 2014, Dave Hansen wrote:

> From: Dave Hansen <>
> The slub code does some setup during early boot in
> early_kmem_cache_node_alloc() with some local data.  There is no
> possible way that another CPU can see this data, so the slub code
> doesn't unnecessarily lock it.  However, some new lockdep asserts
> check to make sure that add_partial() _always_ has the list_lock
> held.
> Just add the locking, even though it is technically unnecessary.
> Signed-off-by: Dave Hansen <>
> Cc: Peter Zijlstra <>
> Cc: Pekka Enberg <>
> Cc: Russell King <>

Acked-by: David Rientjes <>
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