[PATCH] mm: remove the unused zone->unaccepted_cleanup

[PATCH] mm: remove the unused zone->unaccepted_cleanup

[Usama Arif]

Commit fefc07518227 ("mm/page_alloc: fix race condition in unaccepted
memory handling") removed the zones_with_unaccepted_pages static key and
the work that decremented it, but left the work_struct behind in struct
zone. Nothing uses it anymore, so let's remove it.

Signed-off-by: Usama Arif <usama.arif@linux.dev>
---
 include/linux/mmzone.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 65e2e0249b04f..e9d3845d10554 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1100,9 +1100,6 @@ struct zone {
 #ifdef CONFIG_UNACCEPTED_MEMORY
 	/* Pages to be accepted. All pages on the list are MAX_PAGE_ORDER */
 	struct list_head	unaccepted_pages;
-
-	/* To be called once the last page in the zone is accepted */
-	struct work_struct	unaccepted_cleanup;
 #endif
 
 	/* zone flags, see below */
-- 
2.53.0-Meta

Re: [PATCH] mm: remove the unused zone->unaccepted_cleanup

[David Hildenbrand (Arm)]

On 9/24/26 21:11, Usama Arif wrote:
> Commit fefc07518227 ("mm/page_alloc: fix race condition in unaccepted
> memory handling") removed the zones_with_unaccepted_pages static key and
> the work that decremented it, but left the work_struct behind in struct
> zone. Nothing uses it anymore, so let's remove it.
> 
> Signed-off-by: Usama Arif <usama.arif@linux.dev>
> ---

Acked-by: David Hildenbrand (Arm) <david@kernel.org>

-- 
Cheers,

David

Re: [PATCH] mm: remove the unused zone->unaccepted_cleanup

[Shakeel Butt]

On Thu, Sep 24, 2026 at 12:11:03PM -0700, Usama Arif wrote:
> Commit fefc07518227 ("mm/page_alloc: fix race condition in unaccepted
> memory handling") removed the zones_with_unaccepted_pages static key and
> the work that decremented it, but left the work_struct behind in struct
> zone. Nothing uses it anymore, so let's remove it.
> 
> Signed-off-by: Usama Arif <usama.arif@linux.dev>

Reviewed-by: Shakeel Butt <shakeel.butt@linux.dev>

Re: [PATCH] mm: remove the unused zone->unaccepted_cleanup

[Johannes Weiner]

On Thu, Sep 24, 2026 at 12:11:03PM -0700, Usama Arif wrote:
> Commit fefc07518227 ("mm/page_alloc: fix race condition in unaccepted
> memory handling") removed the zones_with_unaccepted_pages static key and
> the work that decremented it, but left the work_struct behind in struct
> zone. Nothing uses it anymore, so let's remove it.
> 
> Signed-off-by: Usama Arif <usama.arif@linux.dev>

Reviewed-by: Johannes Weiner <hannes@cmpxchg.org>

Re: [PATCH] mm: remove the unused zone->unaccepted_cleanup

[Barry Song]

On Fri, Sep 25, 2026 at 3:11 AM Usama Arif <usama.arif@linux.dev> wrote:
>
> Commit fefc07518227 ("mm/page_alloc: fix race condition in unaccepted
> memory handling") removed the zones_with_unaccepted_pages static key and
> the work that decremented it, but left the work_struct behind in struct
> zone. Nothing uses it anymore, so let's remove it.
>
> Signed-off-by: Usama Arif <usama.arif@linux.dev>
> ---

Nice catch.

Reviewed-by: Barry Song <baohua@kernel.org>