... not when it's used only to check which file is used;
debugfs_create_file_aux_num() allows to stash a number into
debugfs entry and debugfs_get_aux_num() extracts it.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index f8dfd2864bbf..0e661672cbb9 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -5420,7 +5420,7 @@ static void lru_gen_seq_show_full(struct seq_file *m, struct lruvec *lruvec,
static int lru_gen_seq_show(struct seq_file *m, void *v)
{
unsigned long seq;
- bool full = !debugfs_real_fops(m->file)->write;
+ bool full = debugfs_get_aux_num(m->file);
struct lruvec *lruvec = v;
struct lru_gen_folio *lrugen = &lruvec->lrugen;
int nid = lruvec_pgdat(lruvec)->node_id;
@@ -5756,8 +5756,10 @@ static int __init init_lru_gen(void)
if (sysfs_create_group(mm_kobj, &lru_gen_attr_group))
pr_err("lru_gen: failed to create sysfs group\n");
- debugfs_create_file("lru_gen", 0644, NULL, NULL, &lru_gen_rw_fops);
- debugfs_create_file("lru_gen_full", 0444, NULL, NULL, &lru_gen_ro_fops);
+ debugfs_create_file_aux_num("lru_gen", 0644, NULL, NULL, 1,
+ &lru_gen_rw_fops);
+ debugfs_create_file_aux_num("lru_gen_full", 0444, NULL, NULL, 0,
+ &lru_gen_ro_fops);
return 0;
};
--
2.39.5
