svn commit: r367696 - head/sys/contrib/openzfs/module/zfs

[Mateusz Guzik]

Author: mjg
Date: Sat Nov 14 19:23:07 2020
New Revision: 367696
URL: https://svnweb.freebsd.org/changeset/base/367696

Log:
  zfs: disable periodic arc updates
  
  They are only there to provide less innacurate statistics for debuggers.
  However, this is quite heavy-weight and instead it would be better to
  teach debuggers how to obtain the necessary information.

Modified:
  head/sys/contrib/openzfs/module/zfs/arc.c

Modified: head/sys/contrib/openzfs/module/zfs/arc.c
==============================================================================
--- head/sys/contrib/openzfs/module/zfs/arc.c	Sat Nov 14 19:22:02 2020	(r367695)
+++ head/sys/contrib/openzfs/module/zfs/arc.c	Sat Nov 14 19:23:07 2020	(r367696)
@@ -4791,8 +4791,10 @@ arc_evict_cb_check(void *arg, zthr_t *zthr)
 	 * arc_state_t structures can be queried directly if more
 	 * accurate information is needed.
 	 */
+#ifndef __FreeBSD__
 	if (arc_ksp != NULL)
 		arc_ksp->ks_update(arc_ksp, KSTAT_READ);
+#endif
 
 	/*
 	 * We have to rely on arc_wait_for_eviction() to tell us when to