On 11/25/24 22:01, Matthew Wilcox (Oracle) wrote:
> In preparation for allocating frozen pages, stop initialising the page
> refcount in __alloc_pages_direct_reclaim().
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: Vlastimil Babka <vbabka@xxxxxxx>
> ---
> mm/page_alloc.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 0f02cb253bf5..7acc32902fc9 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -3998,7 +3998,6 @@ __alloc_pages_direct_reclaim(gfp_t gfp_mask, unsigned int order,
> drained = true;
> goto retry;
> }
> - set_page_refcounted(page);
> out:
> psi_memstall_leave(&pflags);
>
> @@ -4420,8 +4419,10 @@ __alloc_pages_slowpath(gfp_t gfp_mask, unsigned int order,
> /* Try direct reclaim and then allocating */
> page = __alloc_pages_direct_reclaim(gfp_mask, order, alloc_flags, ac,
> &did_some_progress);
> - if (page)
> + if (page) {
> + set_page_refcounted(page);
> goto got_pg;
> + }
>
> /* Try direct compaction and then allocating */
> page = __alloc_pages_direct_compact(gfp_mask, order, alloc_flags, ac,
