X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=fio.c;h=728addd614e70aafa2548a7914619052abe06d9f;hb=2afd826bf6cd19900aee70ae14ede92d91b6f4c0;hp=debcac5eea9edeb55eea6ff0488e7389f8a5de14;hpb=b4707ed7905cc4f1839f799cc1fe8d4b37a1fcef;p=fio.git

diff --git a/fio.c b/fio.c
index debcac5e..728addd6 100644
--- a/fio.c
+++ b/fio.c
@@ -39,6 +39,7 @@
 #include "smalloc.h"
 #include "verify.h"
 #include "diskutil.h"
+#include "cgroup.h"
 
 unsigned long page_mask;
 unsigned long page_size;
@@ -60,6 +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];
 
@@ -536,7 +539,8 @@ sync_done:
 		 */
 		full = queue_full(td) || ret == FIO_Q_BUSY;
 		if (full || !td->o.iodepth_batch_complete) {
-			min_events = td->o.iodepth_batch_complete;
+			min_events = min(td->o.iodepth_batch_complete,
+					 td->cur_depth);
 			if (full && !min_events)
 				min_events = 1;
 
@@ -688,7 +692,8 @@ sync_done:
 		 */
 		full = queue_full(td) || ret == FIO_Q_BUSY;
 		if (full || !td->o.iodepth_batch_complete) {
-			min_evts = td->o.iodepth_batch_complete;
+			min_evts = min(td->o.iodepth_batch_complete,
+					td->cur_depth);
 			if (full && !min_evts)
 				min_evts = 1;
 
@@ -1036,6 +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.
@@ -1073,6 +1087,9 @@ static void *thread_main(void *data)
 		}
 	}
 
+	if (td->o.cgroup_weight && cgroup_setup(td, cgroup_list, &cgroup_mnt))
+		goto err;
+
 	if (nice(td->o.nice) == -1) {
 		td_verror(td, errno, "nice");
 		goto err;
@@ -1202,6 +1219,7 @@ err:
 	close_and_free_files(td);
 	close_ioengine(td);
 	cleanup_io_u(td);
+	cgroup_shutdown(td, &cgroup_mnt);
 
 	if (td->o.cpumask_set) {
 		int ret = fio_cpuset_exit(&td->o.cpumask);
@@ -1650,6 +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) {
@@ -1661,6 +1682,11 @@ 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);
 	return exit_value;