svn commit: r310646 - head/sys/cam/ctl

[Alexander Motin]

Author: mav
Date: Tue Dec 27 22:38:44 2016
New Revision: 310646
URL: https://svnweb.freebsd.org/changeset/base/310646

Log:
  Do not update "saved" mode page on every MODE SELECT.
  
  We do not have non-volatile memory to really save those values, so we
  neither report nor support this capability.  Also saved mode pages are
  not replicated between HA peers now.
  
  MFC after:	2 weeks

Modified:
  head/sys/cam/ctl/ctl.c

Modified: head/sys/cam/ctl/ctl.c
==============================================================================
--- head/sys/cam/ctl/ctl.c	Tue Dec 27 22:37:24 2016	(r310645)
+++ head/sys/cam/ctl/ctl.c	Tue Dec 27 22:38:44 2016	(r310646)
@@ -5833,7 +5833,7 @@ ctl_default_page_handler(struct ctl_scsi
 			 struct ctl_page_index *page_index, uint8_t *page_ptr)
 {
 	struct ctl_lun *lun;
-	uint8_t *current_cp, *saved_cp;
+	uint8_t *current_cp;
 	int set_ua;
 	uint32_t initidx;
 
@@ -5843,13 +5843,10 @@ ctl_default_page_handler(struct ctl_scsi
 
 	current_cp = (page_index->page_data + (page_index->page_len *
 	    CTL_PAGE_CURRENT));
-	saved_cp = (page_index->page_data + (page_index->page_len *
-	    CTL_PAGE_SAVED));
 
 	mtx_lock(&lun->lun_lock);
 	if (memcmp(current_cp, page_ptr, page_index->page_len)) {
 		memcpy(current_cp, page_ptr, page_index->page_len);
-		memcpy(saved_cp, page_ptr, page_index->page_len);
 		set_ua = 1;
 	}
 	if (set_ua != 0)