'access_memory' is an artificial memory access pattern generator for DAMON tests. It creates and accesses memory regions that the user specified the number and size via the command line. However, real access part of the program ignores the user-specified size of each region. Instead, it uses a hard-coded value, 10 MiB. Fix it to use user-defined size.
Note that all existing 'access_memory' users are setting the region size as 10 MiB. Hence no real problem has happened so far.
Fixes: b5906f5f7359 ("selftests/damon: add a test for update_schemes_tried_regions sysfs command") Signed-off-by: SeongJae Park sj@kernel.org --- tools/testing/selftests/damon/access_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/damon/access_memory.c b/tools/testing/selftests/damon/access_memory.c index 585a2fa54329..56b17e8fe1be 100644 --- a/tools/testing/selftests/damon/access_memory.c +++ b/tools/testing/selftests/damon/access_memory.c @@ -35,7 +35,7 @@ int main(int argc, char *argv[]) start_clock = clock(); while ((clock() - start_clock) * 1000 / CLOCKS_PER_SEC < access_time_ms) - memset(regions[i], i, 1024 * 1024 * 10); + memset(regions[i], i, sz_region); } return 0; }