On Mon, 5 Jul 2021 at 13:12, Andrey Konovalov [off-list ref] wrote:
[...]

quoted

+       /*
+        * Explicitly initialize the memory with the precise object size to
+        * avoid overwriting the SLAB redzone. This disables initialization in
+        * the arch code and may thus lead to performance penalty. The penalty
+        * is accepted since SLAB redzones aren't enabled in production builds.
+        */
+       if (__slub_debug_enabled() &&

What happened to slub_debug_enabled_unlikely()? Was it renamed? Why? I
didn't receive patch #1 of v6 (nor of v5).

Somebody had the same idea with the helper:
https://lkml.kernel.org/r/YOKsC75kJfCZwySD@elver.google.com
and Matthew didn't like the _unlikely() prefix.

Which meant we should just move the existing helper introduced in the
merge window.

Patch 1/2: https://lkml.kernel.org/r/20210705103229.8505-2-yee.lee@mediatek.com

Thanks,
-- Marco