[PATCH V2] mm/damon: simplify damon_ctx check in damon_sysfs_before_terminate

Xin Hao
2022-09-08T02:19:24Z

In damon_sysfs_before_terminate() func, it need to check whether
ctx->ops.id supports 'DAMON_OPS_VADDR' or 'DAMON_OPS_FVADDR', there we
can use damon_target_has_pid() instead.

Signed-off-by: Xin Hao <xhao@linux.alibaba.com>
Reviewed-by: SeongJae 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 7488e27c87c3..88f208ff235d 100644
--- a/mm/damon/sysfs.c
+++ b/mm/damon/sysfs.c
@@ -2309,7 +2309,7 @@ static void damon_sysfs_before_terminate(struct damon_ctx *ctx)
{
struct damon_target *t, *next;

- if (ctx->ops.id != DAMON_OPS_VADDR && ctx->ops.id != DAMON_OPS_FVADDR)
+ if (!damon_target_has_pid(ctx))
return;

mutex_lock(&ctx->kdamond_lock);
--
2.31.0