linux-kernel - [PATCH 3/3] slab: avoid __initdata warning (may be a bogus one)

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Date:	Sat, 31 Mar 2007 01:08:14 +0200
From:	Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>
Subject: [PATCH 3/3] slab: avoid __initdata warning (may be a bogus one)

set_up_list3s is not __init and references initkmem_list3.

Also, kmem_cache_create calls setup_cpu_cache which calls set_up_list3s. The
state machine _may_ prevent the code from accessing this data after freeing
initdata (it makes sure it's used only up to boot), so this warning may be a
false positive.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@...oo.it>
---

 mm/slab.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 0934f8d..0772faf 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -305,7 +305,7 @@ struct kmem_list3 {
  * Need this for bootstrapping a per node allocator.
  */
 #define NUM_INIT_LISTS (2 * MAX_NUMNODES + 1)
-struct kmem_list3 __initdata initkmem_list3[NUM_INIT_LISTS];
+struct kmem_list3 initkmem_list3[NUM_INIT_LISTS];
 #define	CACHE_CACHE 0
 #define	SIZE_AC 1
 #define	SIZE_L3 (1 + MAX_NUMNODES)



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