From: SeongJae Park <sj@xxxxxxxxxx> Subject: mm/damon/dbgfs-test: fix is_target_id() change DAMON kunit tests for DAMON debugfs interface fails because it still assumes setting empty monitoring operations makes DAMON debugfs interface believe the target of the context don't have pid. This commit fixes the kunit test fails by explicitly setting the context's monitoring operations with the operations for the physical address space, which let debugfs knows the target will not have pid. Link: https://lkml.kernel.org/r/20220215184603.1479-8-sj@xxxxxxxxxx Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Xin Hao <xhao@xxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/damon/dbgfs-test.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/mm/damon/dbgfs-test.h~mm-damon-dbgfs-test-fix-is_target_id-change +++ a/mm/damon/dbgfs-test.h @@ -74,7 +74,7 @@ static void damon_dbgfs_test_set_targets char buf[64]; /* Make DAMON consider target has no pid */ - ctx->ops = (struct damon_operations){}; + damon_select_ops(ctx, DAMON_OPS_PADDR); dbgfs_set_targets(ctx, 0, NULL); sprint_target_ids(ctx, buf, 64); @@ -111,6 +111,8 @@ static void damon_dbgfs_test_set_init_re int i, rc; char buf[256]; + damon_select_ops(ctx, DAMON_OPS_PADDR); + dbgfs_set_targets(ctx, 3, NULL); /* Put valid inputs and check the results */ _
