Re: [PATCH v3 15/15] mm/slab: replace __GFP_NO_OBJ_EXT with SLAB_ALLOC_NO_RECURSE for sheaves

[Harry Yoo]

On 6/15/26 8:54 PM, Vlastimil Babka (SUSE) wrote:
> Finish the switch away from __GFP_NO_OBJ_EXT by replacing it with
> SLAB_ALLOC_NO_RECURSE when allocating empty sheaves. Pass alloc_flags to
> [__]alloc_empty_sheaf(). Callers that can't be part of a recursive
> kmalloc() chain simply pass SLAB_ALLOC_DEFAULT. Use kmalloc_flags()
> instead of kzalloc() for allocating the sheaf.
> 
> With that we can finalize the removal the __GFP_NO_OBJ_EXT handling from
> obj_ext allocations as well, leaving only SLAB_ALLOC_NO_RECURSE in
> place.
> 
> This leaves __GFP_NO_OBJ_EXT with no users in slab, so stop allowing the
> flag in kmalloc_nolock().
> 
> Link: https://patch.msgid.link/20260610-slab_alloc_flags-v2-16-7190909db118@xxxxxxxxxx
> Reviewed-by: Hao Li <hao.li@xxxxxxxxx>
> Signed-off-by: Vlastimil Babka (SUSE) <vbabka@xxxxxxxxxx>
> ---

Looks good to me,
Reviewed-by: Harry Yoo (Oracle) <harry@xxxxxxxxxx>

-- 
Cheers,
Harry / Hyeonggon

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