From 131c20823ebcc039ae19b1bb4d8343a6b00026d2 Mon Sep 17 00:00:00 2001 From: SJ Park Date: Tue, 14 Jul 2026 07:35:42 -0700 Subject: [PATCH] mm/damon/sysfs: do not directly access damon_ctx->ops damon_ctx->ops field is intended to be used by only the DAMON core layer. DAMON_SYSFS is directly reading the field to find if it is for physical address monitoring, though. Use the API function for the purpose, damon_target_has_pid(), instead. Link: https://lore.kernel.org/20260714143544.101305-10-sj@kernel.org Signed-off-by: SJ Park Signed-off-by: Andrew Morton --- mm/damon/sysfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index b5fe036f7801..208bb639f50f 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -2051,7 +2051,7 @@ static int damon_sysfs_add_targets(struct damon_ctx *ctx, int i, err; /* Multiple physical address space monitoring targets makes no sense */ - if (ctx->ops.id == DAMON_OPS_PADDR && sysfs_targets->nr > 1) + if (!damon_target_has_pid(ctx) && sysfs_targets->nr > 1) return -EINVAL; for (i = 0; i < sysfs_targets->nr; i++) {