Index: sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c
===================================================================
--- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c	(wersja 236248)
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c	(kopia robocza)
@@ -68,6 +68,35 @@
 boolean_t zfs_no_scrub_prefetch = B_FALSE; /* set to disable srub prefetching */
 enum ddt_class zfs_scrub_ddt_class_max = DDT_CLASS_DUPLICATE;
 
+SYSCTL_DECL(_vfs_zfs);
+TUNABLE_INT("vfs.zfs.top_maxinflight", &zfs_top_maxinflight);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, top_maxinflight, CTLFLAG_RDTUN,
+    &zfs_top_maxinflight, 0, "Maximum I/Os per top-level");
+TUNABLE_INT("vfs.zfs.resilver_delay", &zfs_resilver_delay);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, resilver_delay, CTLFLAG_RDTUN,
+    &zfs_resilver_delay, 0, "Number of ticks to delay resilver");
+TUNABLE_INT("vfs.zfs.scrub_delay", &zfs_scrub_delay);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, scrub_delay, CTLFLAG_RDTUN,
+    &zfs_scrub_delay, 0, "Number of ticks to delay scrub");
+TUNABLE_INT("vfs.zfs.scan_idle", &zfs_scan_idle);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, scan_idle, CTLFLAG_RDTUN,
+    &zfs_scan_idle, 0, "Idle window in clock ticks");
+TUNABLE_INT("vfs.zfs.scan_min_time_ms", &zfs_scan_min_time_ms);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, scan_min_time_ms, CTLFLAG_RDTUN,
+    &zfs_scan_min_time_ms, 0, "Min millisecs to scrub per txg");
+TUNABLE_INT("vfs.zfs.free_min_time_ms", &zfs_free_min_time_ms);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, free_min_time_ms, CTLFLAG_RDTUN,
+    &zfs_free_min_time_ms, 0, "Min millisecs to free per txg");
+TUNABLE_INT("vfs.zfs.resilver_min_time_ms", &zfs_resilver_min_time_ms);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, resilver_min_time_ms, CTLFLAG_RDTUN,
+    &zfs_resilver_min_time_ms, 0, "Min millisecs to resilver per txg");
+TUNABLE_INT("vfs.zfs.no_scrub_io", &zfs_no_scrub_io);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, no_scrub_io, CTLFLAG_RDTUN,
+    &zfs_no_scrub_io, 0, "Set to disable scrub i/o");
+TUNABLE_INT("vfs.zfs.no_scrub_prefetch", &zfs_no_scrub_prefetch);
+SYSCTL_INT(_vfs_zfs, OID_AUTO, no_scrub_prefetch, CTLFLAG_RDTUN,
+    &zfs_no_scrub_prefetch, 0, "Set to disable srub prefetching");
+
 #define	DSL_SCAN_IS_SCRUB_RESILVER(scn) \
 	((scn)->scn_phys.scn_func == POOL_SCAN_SCRUB || \
 	(scn)->scn_phys.scn_func == POOL_SCAN_RESILVER)