svn commit: r347698 - head/sys/amd64/amd64

[Konstantin Belousov]

Author: kib
Date: Thu May 16 14:33:32 2019
New Revision: 347698
URL: https://svnweb.freebsd.org/changeset/base/347698

Log:
  amd64 pmap: sysctl vm.pmap.pcid_save_cnt should be read-only.
  
  Sponsored by:	The FreeBSD Foundation
  MFC after:	1 week

Modified:
  head/sys/amd64/amd64/pmap.c

Modified: head/sys/amd64/amd64/pmap.c
==============================================================================
--- head/sys/amd64/amd64/pmap.c	Thu May 16 14:29:09 2019	(r347697)
+++ head/sys/amd64/amd64/pmap.c	Thu May 16 14:33:32 2019	(r347698)
@@ -466,7 +466,7 @@ pmap_pcid_save_cnt_proc(SYSCTL_HANDLER_ARGS)
 	}
 	return (sysctl_handle_64(oidp, &res, 0, req));
 }
-SYSCTL_PROC(_vm_pmap, OID_AUTO, pcid_save_cnt, CTLTYPE_U64 | CTLFLAG_RW |
+SYSCTL_PROC(_vm_pmap, OID_AUTO, pcid_save_cnt, CTLTYPE_U64 | CTLFLAG_RD |
     CTLFLAG_MPSAFE, NULL, 0, pmap_pcid_save_cnt_proc, "QU",
     "Count of saved TLB context on switch");