mm/vmscan: fix inverted polarity in lru_gen_seq_show()

Commit a7694ff ("vmscan: don't bother with debugfs_real_fops()")
started using debugfs_get_aux_num() to distinguish between the RW
"lru_gen" and the RO "lru_gen_full" file [1].

Willy reported the inverted polarity [2] and Al fixed it up in [3].

However, the patch in [1] was applied. Hence, fix this up accordingly.

Cc: Alexander Viro <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Link: https://lore.kernel.org/all/20250704040720.GP1880847@ZenIV/ [1]
Link: https://lore.kernel.org/all/[email protected]/ [2]
Link: https://lore.kernel.org/all/20250704040720.GP1880847@ZenIV/ [3]
Fixes: a7694ff ("vmscan: don't bother with debugfs_real_fops()")
Acked-by: Greg Kroah-Hartman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Danilo Krummrich <[email protected]>

Author: Danilo Krummrich

mm/vmscan.c

@@ -5772,9 +5772,9 @@ 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_aux_num("lru_gen", 0644, NULL, NULL, 1,
+	debugfs_create_file_aux_num("lru_gen", 0644, NULL, NULL, false,
 				    &lru_gen_rw_fops);
-	debugfs_create_file_aux_num("lru_gen_full", 0444, NULL, NULL, 0,
+	debugfs_create_file_aux_num("lru_gen_full", 0444, NULL, NULL, true,
 				    &lru_gen_ro_fops);
 
 	return 0;