X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=fio.c;h=728addd614e70aafa2548a7914619052abe06d9f;hb=2afd826bf6cd19900aee70ae14ede92d91b6f4c0;hp=bcc130bbde49297c2576b0081de0767289515931;hpb=dae5341c3059273242598de2bc27cc9f18c627c1;p=fio.git

diff --git a/fio.c b/fio.c
index bcc130bb..728addd6 100644
--- a/fio.c
+++ b/fio.c
@@ -62,6 +62,7 @@ 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];
 
@@ -1040,6 +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.
@@ -1077,7 +1087,7 @@ static void *thread_main(void *data)
 		}
 	}
 
-	if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list))
+	if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt))
 		goto err;
 
 	if (nice(td->o.nice) == -1) {
@@ -1209,7 +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);
@@ -1674,6 +1684,8 @@ int main(int argc, char *argv[])
 
 	cgroup_kill(cgroup_list);
 	sfree(cgroup_list);
+	if (cgroup_mnt)
+		sfree(cgroup_mnt);
 
 	fio_mutex_remove(startup_mutex);
 	fio_mutex_remove(writeout_mutex);