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mm: vmscan: add a helper to identify file-backed executable folios

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Add a helper to identify file-backed executable folios to avoid duplicate
code.

No functional changes.

Link: https://lore.kernel.org/2ee74f9f98ac45a2f0db0ceb018e086bdb671d17.1784509721.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Reviewed-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Kairui Song <kasong@tencent.com>
Reviewed-by: Barry Song <baohua@kernel.org>
Cc: Harry Yoo <harry@kernel.org>
Cc: Jann Horn <jannh@google.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Wei Xu <weixugc@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Baolin Wang
2026-07-20 19:12:01 +08:00
committed by Andrew Morton
parent 3bf07ce805
commit b64727d264
1 changed files with 8 additions and 2 deletions
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10
mm/vmscan.c
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@@ -268,6 +268,12 @@ static int sc_swappiness(struct scan_control *sc, struct mem_cgroup *memcg)
}
#endif
static inline bool is_exec_file_folio(const struct folio *folio,
const vma_flags_t *vma_flags)
{
return vma_flags_test(vma_flags, VMA_EXEC_BIT) && folio_is_file_lru(folio);
}
static void set_task_reclaim_state(struct task_struct *task,
struct reclaim_state *rs)
{
@@ -914,7 +920,7 @@ static enum folio_references folio_check_references(struct folio *folio,
/*
* Activate file-backed executable folios after first usage.
*/
if (vma_flags_test(&vma_flags, VMA_EXEC_BIT) && folio_is_file_lru(folio))
if (is_exec_file_folio(folio, &vma_flags))
return FOLIOREF_ACTIVATE;
return FOLIOREF_KEEP;
@@ -2119,7 +2125,7 @@ static void shrink_active_list(unsigned long nr_to_scan,
* IO, plus JVM can create lots of anon VM_EXEC folios,
* so we ignore them here.
*/
if (vma_flags_test(&vma_flags, VMA_EXEC_BIT) && folio_is_file_lru(folio)) {
if (is_exec_file_folio(folio, &vma_flags)) {
nr_rotated += folio_nr_pages(folio);
list_add(&folio->lru, &l_active);
continue;