diff options
| author | David Hildenbrand (Red Hat) <david@kernel.org> | 2026-01-20 00:01:30 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-01-31 14:22:36 -0800 |
| commit | cd8e95d80bc29b3c72288bd31e845b11755ef6a5 (patch) | |
| tree | f51577cd6121a24a9cddfb0a7a257b6aa09ec038 /mm/balloon.c | |
| parent | 7cf3318a25877c0908e450919f7e1517908e24f1 (diff) | |
mm: rename CONFIG_BALLOON_COMPACTION to CONFIG_BALLOON_MIGRATION
While compaction depends on migration, the other direction is not the
case. So let's make it clearer that this is all about migration of
balloon pages.
Adjust all comments/docs in the core to talk about "migration" instead of
"compaction".
While at it add some "/* CONFIG_BALLOON_MIGRATION */".
Link: https://lkml.kernel.org/r/20260119230133.3551867-23-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>
Diffstat (limited to 'mm/balloon.c')
| -rw-r--r-- | mm/balloon.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/mm/balloon.c b/mm/balloon.c index 0f068b97e5d8..96a8f1e20bc6 100644 --- a/mm/balloon.c +++ b/mm/balloon.c @@ -29,7 +29,7 @@ static void balloon_page_insert(struct balloon_dev_info *balloon, { lockdep_assert_held(&balloon_pages_lock); __SetPageOffline(page); - if (IS_ENABLED(CONFIG_BALLOON_COMPACTION)) { + if (IS_ENABLED(CONFIG_BALLOON_MIGRATION)) { SetPageMovableOps(page); set_page_private(page, (unsigned long)balloon); } @@ -46,7 +46,7 @@ static void balloon_page_insert(struct balloon_dev_info *balloon, static void balloon_page_finalize(struct page *page) { lockdep_assert_held(&balloon_pages_lock); - if (IS_ENABLED(CONFIG_BALLOON_COMPACTION)) + if (IS_ENABLED(CONFIG_BALLOON_MIGRATION)) set_page_private(page, 0); /* PageOffline is sticky until the page is freed to the buddy. */ } @@ -148,7 +148,7 @@ struct page *balloon_page_alloc(void) { gfp_t gfp_flags = __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN; - if (IS_ENABLED(CONFIG_BALLOON_COMPACTION)) + if (IS_ENABLED(CONFIG_BALLOON_MIGRATION)) gfp_flags |= GFP_HIGHUSER_MOVABLE; else gfp_flags |= GFP_HIGHUSER; @@ -227,7 +227,7 @@ struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info) } EXPORT_SYMBOL_GPL(balloon_page_dequeue); -#ifdef CONFIG_BALLOON_COMPACTION +#ifdef CONFIG_BALLOON_MIGRATION static struct balloon_dev_info *balloon_page_device(struct page *page) { return (struct balloon_dev_info *)page_private(page); @@ -341,4 +341,4 @@ static int __init balloon_init(void) } core_initcall(balloon_init); -#endif /* CONFIG_BALLOON_COMPACTION */ +#endif /* CONFIG_BALLOON_MIGRATION */ |