svn commit: r353158 - head/sys/powerpc/aim

[Justin Hibbits]

Author: jhibbits
Date: Mon Oct  7 02:36:42 2019
New Revision: 353158
URL: https://svnweb.freebsd.org/changeset/base/353158

Log:
  powerpc64/pmap: Fix release order to match lock order in moea64_enter()
  
  Page PV lock is always taken first, so should be released last.  This also
  (trivially) shortens the hold time of the pmap lock.
  
  Submitted by:	mjg

Modified:
  head/sys/powerpc/aim/mmu_oea64.c

Modified: head/sys/powerpc/aim/mmu_oea64.c
==============================================================================
--- head/sys/powerpc/aim/mmu_oea64.c	Mon Oct  7 01:03:14 2019	(r353157)
+++ head/sys/powerpc/aim/mmu_oea64.c	Mon Oct  7 02:36:42 2019	(r353158)
@@ -1453,8 +1453,8 @@ moea64_enter(mmu_t mmu, pmap_t pmap, vm_offset_t va, v
 			moea64_pvo_enter(mmu, pvo, pvo_head, NULL);
 		}
 	}
-	PV_PAGE_UNLOCK(m);
 	PMAP_UNLOCK(pmap);
+	PV_PAGE_UNLOCK(m);
 
 	/* Free any dead pages */
 	if (error == EEXIST) {