X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=fio.c;h=778749d6a3322411a7affc06f945ee2c3a4a2aff;hb=c06c78c04c415bcb33350e8e56b924b75b4e93aa;hp=a18ca1b63f185fdca01d2ae677cd669fdefb4e58;hpb=39f22027248f658ade599e89c2fe6afae02ac9d7;p=fio.git

diff --git a/fio.c b/fio.c
index a18ca1b6..778749d6 100644
--- a/fio.c
+++ b/fio.c
@@ -61,6 +61,8 @@ static volatile int fio_abort;
 static int exit_value;
 static struct itimerval itimer;
 static pthread_t gtod_thread;
+static struct flist_head *cgroup_list;
+static char *cgroup_mnt;
 
 struct io_log *agg_io_log[2];
 
@@ -132,7 +134,7 @@ static void sig_quit(int sig)
 static void sig_int(int sig)
 {
 	if (threads) {
-		printf("\nfio: terminating on signal %d\n", sig);
+		log_info("\nfio: terminating on signal %d\n", sig);
 		fflush(stdout);
 		terminate_threads(TERMINATE_ALL);
 	}
@@ -1039,6 +1041,15 @@ static void *thread_main(void *data)
 	 */
 	fio_mutex_remove(td->mutex);
 
+	if (td->o.uid != -1U && setuid(td->o.uid)) {
+		td_verror(td, errno, "setuid");
+		goto err;
+	}
+	if (td->o.gid != -1U && setgid(td->o.gid)) {
+		td_verror(td, errno, "setgid");
+		goto err;
+	}
+
 	/*
 	 * May alter parameters that init_io_u() will use, so we need to
 	 * do this first.
@@ -1076,7 +1087,7 @@ static void *thread_main(void *data)
 		}
 	}
 
-	if (td->o.cgroup_weight && cgroup_setup(td))
+	if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt))
 		goto err;
 
 	if (nice(td->o.nice) == -1) {
@@ -1199,7 +1210,7 @@ static void *thread_main(void *data)
 
 err:
 	if (td->error)
-		printf("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error,
+		log_info("fio: pid=%d, err=%d/%s\n", (int) td->pid, td->error,
 							td->verror);
 
 	if (td->o.verify_async)
@@ -1208,7 +1219,7 @@ err:
 	close_and_free_files(td);
 	close_ioengine(td);
 	cleanup_io_u(td);
-	cgroup_shutdown(td);
+	cgroup_shutdown(td, &cgroup_mnt);
 
 	if (td->o.cpumask_set) {
 		int ret = fio_cpuset_exit(&td->o.cpumask);
@@ -1401,17 +1412,17 @@ static void run_threads(void)
 		return;
 
 	if (!terse_output) {
-		printf("Starting ");
+		log_info("Starting ");
 		if (nr_thread)
-			printf("%d thread%s", nr_thread,
+			log_info("%d thread%s", nr_thread,
 						nr_thread > 1 ? "s" : "");
 		if (nr_process) {
 			if (nr_thread)
 				printf(" and ");
-			printf("%d process%s", nr_process,
+			log_info("%d process%s", nr_process,
 						nr_process > 1 ? "es" : "");
 		}
-		printf("\n");
+		log_info("\n");
 		fflush(stdout);
 	}
 
@@ -1657,6 +1668,9 @@ int main(int argc, char *argv[])
 
 	status_timer_arm();
 
+	cgroup_list = smalloc(sizeof(*cgroup_list));
+	INIT_FLIST_HEAD(cgroup_list);
+
 	run_threads();
 
 	if (!fio_abort) {
@@ -1668,7 +1682,10 @@ int main(int argc, char *argv[])
 		}
 	}
 
-	cgroup_kill();
+	cgroup_kill(cgroup_list);
+	sfree(cgroup_list);
+	if (cgroup_mnt)
+		sfree(cgroup_mnt);
 
 	fio_mutex_remove(startup_mutex);
 	fio_mutex_remove(writeout_mutex);