[RFC PATCH 09/10] mm/damon/sysfs: do not directly access damon_ctx->ops

[SJ Park <sj@kernel.org>]

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.

Signed-off-by: SJ Park <sj@kernel.org>
---
 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 60a1a9e4ada34..228ceb4df5f97 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++) {
-- 
2.47.3