MFV r255255: 4045 zfs write throttle & i/o scheduler performance work

illumos/illumos-gate@69962b5647e4a8b9b14998733b765925381b727e

Please note the following changes:
- zio_ioctl has lost its priority parameter and now TRIM is executed
  with 'now' priority
- some knobs are gone and some new knobs are added; not all of them are
  exposed as tunables / sysctls yet

MFC after:	10 days
Sponsored by:	HybridCluster [merge]

2 files changed, 10 insertions, 7 deletions

diff --git a/cddl/contrib/opensolaris/cmd/ztest/ztest.c b/cddl/contrib/opensolaris/cmd/ztest/ztest.c
index b6dcf09..2b2e59a 100644
--- a/cddl/contrib/opensolaris/cmd/ztest/ztest.c
+++ b/cddl/contrib/opensolaris/cmd/ztest/ztest.c
@@ -186,7 +186,7 @@ static const ztest_shared_opts_t ztest_opts_defaults = {
 
 extern uint64_t metaslab_gang_bang;
 extern uint64_t metaslab_df_alloc_threshold;
-extern uint64_t zfs_deadman_synctime;
+extern uint64_t zfs_deadman_synctime_ms;
 
 static ztest_shared_opts_t *ztest_shared_opts;
 static ztest_shared_opts_t ztest_opts;
@@ -5328,10 +5328,10 @@ ztest_deadman_thread(void *arg)
 	hrtime_t delta, total = 0;
 
 	for (;;) {
-		delta = (zs->zs_thread_stop - zs->zs_thread_start) /
-		    NANOSEC + zfs_deadman_synctime;
+		delta = zs->zs_thread_stop - zs->zs_thread_start +
+		    MSEC2NSEC(zfs_deadman_synctime_ms);
 
-		(void) poll(NULL, 0, (int)(1000 * delta));
+		(void) poll(NULL, 0, (int)NSEC2MSEC(delta));
 
 		/*
 		 * If the pool is suspended then fail immediately. Otherwise,
@@ -5342,12 +5342,12 @@ ztest_deadman_thread(void *arg)
 		if (spa_suspended(spa)) {
 			fatal(0, "aborting test after %llu seconds because "
 			    "pool has transitioned to a suspended state.",
-			    zfs_deadman_synctime);
+			    zfs_deadman_synctime_ms / 1000);
 			return (NULL);
 		}
 		vdev_deadman(spa->spa_root_vdev);
 
-		total += zfs_deadman_synctime;
+		total += zfs_deadman_synctime_ms/1000;
 		(void) printf("ztest has been running for %lld seconds\n",
 		    total);
 	}
@@ -6080,7 +6080,7 @@ main(int argc, char **argv)
 	(void) setvbuf(stdout, NULL, _IOLBF, 0);
 
 	dprintf_setup(&argc, argv);
-	zfs_deadman_synctime = 300;
+	zfs_deadman_synctime_ms = 300000;
 
 	ztest_fd_rand = open("/dev/urandom", O_RDONLY);
 	ASSERT3S(ztest_fd_rand, >=, 0);
diff --git a/cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h b/cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h
index 4b3401a..471756d 100644
--- a/cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h
+++ b/cddl/contrib/opensolaris/lib/libzpool/common/sys/zfs_context.h
@@ -65,6 +65,7 @@ extern "C" {
 #include <inttypes.h>
 #include <fsshare.h>
 #include <pthread.h>
+#include <sched.h>
 #include <sys/debug.h>
 #include <sys/note.h>
 #include <sys/types.h>
@@ -204,6 +205,8 @@ extern int aok;
  */
 #define	curthread	((void *)(uintptr_t)thr_self())
 
+#define	kpreempt(x)	sched_yield()
+
 typedef struct kthread kthread_t;
 
 #define	thread_create(stk, stksize, func, arg, len, pp, state, pri)	\