On 08/19/2015 11:21 AM, Kirill A. Shutemov wrote:
Since 8456a648cf44 ("slab: use struct page for slab management") nobody
uses slab_page field in struct page.
Let's drop it.
Ah, how about dropping this comment in mm/slab.c:slab_destroy() as well?
/*
* RCU free overloads the RCU head over the LRU.
* slab_page has been overloeaded over the LRU,
* however it is not used from now on so that
* we can use it safely.
*/
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Acked-by: Christoph Lameter <cl@xxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
include/linux/mm_types.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 0038ac7466fd..58620ac7f15c 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -140,7 +140,6 @@ struct page {
#endif
};
- struct slab *slab_page; /* slab fields */
struct rcu_head rcu_head; /* Used by SLAB
* when destroying via RCU
*/
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