The patch titled
Subject: mm/slub: query dynamic DEBUG_PAGEALLOC setting
has been removed from the -mm tree. Its filename was
mm-slub-query-dynamic-debug_pagealloc-setting.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Subject: mm/slub: query dynamic DEBUG_PAGEALLOC setting
We can disable debug_pagealloc processing even if the code is compiled
with CONFIG_DEBUG_PAGEALLOC. This patch changes the code to query
whether it is enabled or not in runtime.
[akpm@xxxxxxxxxxxxxxxxxxxx: clean up code, per Christian]
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Reviewed-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Chris Metcalf <cmetcalf@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slub.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff -puN mm/slub.c~mm-slub-query-dynamic-debug_pagealloc-setting mm/slub.c
--- a/mm/slub.c~mm-slub-query-dynamic-debug_pagealloc-setting
+++ a/mm/slub.c
@@ -254,11 +254,10 @@ static inline void *get_freepointer_safe
{
void *p;
-#ifdef CONFIG_DEBUG_PAGEALLOC
+ if (!debug_pagealloc_enabled())
+ return get_freepointer(s, object);
+
probe_kernel_read(&p, (void **)(object + s->offset), sizeof(p));
-#else
- p = get_freepointer(s, object);
-#endif
return p;
}
_
Patches currently in -mm which might be from iamjoonsoo.kim@xxxxxxx are
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