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Revert "mm: make alloc_demote_folio externally invokable for migration"

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This reverts commit a00ce85af2.

Commit a00ce85af2 ("mm: make alloc_demote_folio externally invokable for
migration") was made to let DAMOS_MIGRATE_{HOT,COLD} call the function. 
But a previous commit made DAMOS_MIGRATE_{HOT,COLD} call
alloc_migration_target() instead.  Hence there are no more callers of the
function outside of vmscan.c.  Revert the commit to make the function
static again.

Link: https://lkml.kernel.org/r/20250616172346.67659-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Honggyu Kim <honggyu.kim@sk.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2025-06-16 10:23:46 -07:00
committed by Andrew Morton
parent 29ea04095b
commit e1b1fe4557
2 changed files with 2 additions and 2 deletions
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1
mm/internal.h
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@@ -1226,7 +1226,6 @@ extern unsigned long __must_check vm_mmap_pgoff(struct file *, unsigned long,
unsigned long, unsigned long);
extern void set_pageblock_order(void);
struct folio *alloc_demote_folio(struct folio *src, unsigned long private);
unsigned long reclaim_pages(struct list_head *folio_list);
unsigned int reclaim_clean_pages_from_list(struct zone *zone,
struct list_head *folio_list);

3
mm/vmscan.c
View File

@@ -1006,7 +1006,8 @@ static void folio_check_dirty_writeback(struct folio *folio,
mapping->a_ops->is_dirty_writeback(folio, dirty, writeback);
}
struct folio *alloc_demote_folio(struct folio *src, unsigned long private)
static struct folio *alloc_demote_folio(struct folio *src,
unsigned long private)
{
struct folio *dst;
nodemask_t *allowed_mask;