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From: Jeff Roberson <jeff@FreeBSD.org>
Date: Sun, 15 Dec 2019 06:26:47 +0000 (UTC)
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Subject: svn commit: r355771 - head/sys/kern
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Author: jeff
Date: Sun Dec 15 06:26:47 2019
New Revision: 355771
URL: https://svnweb.freebsd.org/changeset/base/355771

Log:
  Fix a mistake in r355765.  We need to activate the page if it is not yet
  on a pagequeue.
  
  Reported by:	pho

Modified:
  head/sys/kern/uipc_shm.c

Modified: head/sys/kern/uipc_shm.c
==============================================================================
--- head/sys/kern/uipc_shm.c	Sun Dec 15 05:50:56 2019	(r355770)
+++ head/sys/kern/uipc_shm.c	Sun Dec 15 06:26:47 2019	(r355771)
@@ -209,7 +209,9 @@ uiomove_object_page(vm_object_t obj, size_t len, struc
 	error = uiomove_fromphys(&m, offset, tlen, uio);
 	if (uio->uio_rw == UIO_WRITE && error == 0)
 		vm_page_set_dirty(m);
-	vm_page_aflag_set(m, PGA_REFERENCED);
+	vm_page_lock(m);
+	vm_page_activate(m);
+	vm_page_unlock(m);
 	vm_page_sunbusy(m);
 
 	return (error);