[PATCH RFC 10/12] mm/slab: reduce slabobj_ext memory with allocation profiling disabled

[Vlastimil Babka (SUSE)]

When memory allocation profiling is compiled in but permanently disabled
on boot with (implicit or explicit) "never" parameter, stop allocating
(wasting) memory for the codetag_ref parts of slabobj_ext metadata.

Signed-off-by: Vlastimil Babka (SUSE) <vbabka@xxxxxxxxxx>
---
 mm/slab.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/slab.h b/mm/slab.h
index dcca86799fc9..a50347c9dbe3 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -587,7 +587,7 @@ static inline size_t static_obj_ext_size(void)
 	if (IS_ENABLED(CONFIG_MEMCG))
 		sz += 1;
 
-	if (IS_ENABLED(CONFIG_MEM_ALLOC_PROFILING))
+	if (slab_obj_ext_has_codetag())
 		sz += 1;
 
 	return sizeof(struct slabobj_ext) * sz;

-- 
2.55.0