Re: [PATCH v4 09/36] mm/slab: introduce SLAB_NO_OBJ_EXT to avoid obj_ext creation
From: Vlastimil Babka <hidden>
Date: 2024-02-26 16:52:16
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On 2/21/24 20:40, Suren Baghdasaryan wrote:
Slab extension objects can't be allocated before slab infrastructure is initialized. Some caches, like kmem_cache and kmem_cache_node, are created before slab infrastructure is initialized. Objects from these caches can't have extension objects. Introduce SLAB_NO_OBJ_EXT slab flag to mark these caches and avoid creating extensions for objects allocated from these slabs. Signed-off-by: Suren Baghdasaryan <surenb@google.com> Reviewed-by: Kees Cook <redacted>
Reviewed-by: Vlastimil Babka <redacted>