On 4/29/24 10:28 AM, Christoph Hellwig wrote:
> Otherwise we'll generate false lockdep positives.
>
> Fixes: 217b2119b9e2 ("mm,page_owner: implement the tracking of the stacks count")
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Vlastimil Babka <vbabka@xxxxxxx>
> ---
>
> Changes since v1:
> - only pass on __GFP_NOLOCKDEP and leave the other masking in place
>
> mm/page_owner.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/page_owner.c b/mm/page_owner.c
> index d17d1351ec84af..428c1ea8b4579e 100644
> --- a/mm/page_owner.c
> +++ b/mm/page_owner.c
> @@ -170,7 +170,7 @@ static void add_stack_record_to_list(struct stack_record *stack_record,
>
> /* Filter gfp_mask the same way stackdepot does, for consistency */
> gfp_mask &= ~GFP_ZONEMASK;
> - gfp_mask &= (GFP_ATOMIC | GFP_KERNEL);
> + gfp_mask &= (GFP_ATOMIC | GFP_KERNEL | __GFP_NOLOCKDEP);
> gfp_mask |= __GFP_NOWARN;
>
> set_current_in_page_owner();
