diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2025-07-02 22:17:39 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-09 13:30:28 +0200 |
| commit | a7694ff11aa9d97d0f690351a964544849e5158d (patch) | |
| tree | 194dee72dacfbab7e5723d6ea135df2dd27ff6e6 | |
| parent | 460e36ee6f84c2df4d194ee788e3ca116e8c563b (diff) | |
vmscan: don't bother with debugfs_real_fops()
... 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@zeniv.linux.org.uk>
Braino-spotted-by: Matthew Wilcox <willy@infradead.org>
Link: https://lore.kernel.org/r/20250702211739.GE3406663@ZenIV
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | mm/vmscan.c | 8 |
1 files 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; }; |