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mm/balloon_compaction: remove balloon_page_push/pop()

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Let's remove these helpers as they are unused now.

Link: https://lkml.kernel.org/r/20260119230133.3551867-14-david@kernel.org
Signed-off-by: David Hildenbrand (Red Hat) <david@kernel.org>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Eugenio Pérez <eperezma@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jerrin Shaji George <jerrin.shaji-george@broadcom.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: SeongJae Park <sj@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
David Hildenbrand (Red Hat) 2026-01-20 00:01:21 +01:00 committed by Andrew Morton
parent f7e1537314
commit 0fa3e9a48b
2 changed files with 2 additions and 33 deletions
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30
include/linux/balloon_compaction.h
View File

@ -126,34 +126,4 @@ static inline void balloon_page_finalize(struct page *page)
set_page_private(page, 0);
/* PageOffline is sticky until the page is freed to the buddy. */
}
/*
* balloon_page_push - insert a page into a page list.
* @head : pointer to list
* @page : page to be added
*
* Caller must ensure the page is private and protect the list.
*/
static inline void balloon_page_push(struct list_head *pages, struct page *page)
{
list_add(&page->lru, pages);
}
/*
* balloon_page_pop - remove a page from a page list.
* @head : pointer to list
* @page : page to be added
*
* Caller must ensure the page is private and protect the list.
*/
static inline struct page *balloon_page_pop(struct list_head *pages)
{
struct page *page = list_first_entry_or_null(pages, struct page, lru);
if (!page)
return NULL;
list_del(&page->lru);
return page;
}
#endif /* _LINUX_BALLOON_COMPACTION_H */

5
mm/balloon_compaction.c
View File

@ -128,9 +128,8 @@ EXPORT_SYMBOL_GPL(balloon_page_alloc);
* Drivers must call this function to properly enqueue a new allocated balloon
* page before definitively removing the page from the guest system.
*
* Drivers must not call balloon_page_enqueue on pages that have been pushed to
* a list with balloon_page_push before removing them with balloon_page_pop. To
* enqueue a list of pages, use balloon_page_list_enqueue instead.
* Drivers must not enqueue pages while page->lru is still in
* use, and must not use page->lru until a page was unqueued again.
*/
void balloon_page_enqueue(struct balloon_dev_info *b_dev_info,
struct page *page)