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Date:      Sun, 12 May 2019 07:53:24 +0000 (UTC)
From:      Konstantin Belousov <kib@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org
Subject:   svn commit: r347508 - stable/12/sys/vm
Message-ID:  <201905120753.x4C7rOXO036322@repo.freebsd.org>

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Author: kib
Date: Sun May 12 07:53:24 2019
New Revision: 347508
URL: https://svnweb.freebsd.org/changeset/base/347508

Log:
  MFC r347150, r347180:
  Do not collapse objects with OBJ_NOSPLIT backing swap or default object.

Modified:
  stable/12/sys/vm/vm_object.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/vm/vm_object.c
==============================================================================
--- stable/12/sys/vm/vm_object.c	Sun May 12 07:13:25 2019	(r347507)
+++ stable/12/sys/vm/vm_object.c	Sun May 12 07:53:24 2019	(r347508)
@@ -1748,8 +1748,8 @@ vm_object_collapse(vm_object_t object)
 		VM_OBJECT_WLOCK(backing_object);
 		if (backing_object->handle != NULL ||
 		    (backing_object->type != OBJT_DEFAULT &&
-		     backing_object->type != OBJT_SWAP) ||
-		    (backing_object->flags & OBJ_DEAD) ||
+		    backing_object->type != OBJT_SWAP) ||
+		    (backing_object->flags & (OBJ_DEAD | OBJ_NOSPLIT)) != 0 ||
 		    object->handle != NULL ||
 		    (object->type != OBJT_DEFAULT &&
 		     object->type != OBJT_SWAP) ||



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