svn commit: r188920 - user/alc/pagelock/sys/vm
Alan Cox
alc at FreeBSD.org
Sun Feb 22 09:57:36 PST 2009
Author: alc
Date: Sun Feb 22 17:57:35 2009
New Revision: 188920
URL: http://svn.freebsd.org/changeset/base/188920
Log:
Maintain the lock on the object containing the page being mapped.
Modified:
user/alc/pagelock/sys/vm/vm_fault.c
Modified: user/alc/pagelock/sys/vm/vm_fault.c
==============================================================================
--- user/alc/pagelock/sys/vm/vm_fault.c Sun Feb 22 15:03:29 2009 (r188919)
+++ user/alc/pagelock/sys/vm/vm_fault.c Sun Feb 22 17:57:35 2009 (r188920)
@@ -1210,7 +1210,6 @@ vm_fault_copy_entry(dst_map, src_map, ds
pmap_copy_page(src_m, dst_m);
VM_OBJECT_UNLOCK(object);
dst_m->valid = VM_PAGE_BITS_ALL;
- VM_OBJECT_UNLOCK(dst_object);
/*
* Enter it in the pmap as a read and/or execute access.
@@ -1221,7 +1220,6 @@ vm_fault_copy_entry(dst_map, src_map, ds
/*
* Mark it no longer busy, and put it on the active list.
*/
- VM_OBJECT_LOCK(dst_object);
vm_page_lock_queues();
vm_page_activate(dst_m);
vm_page_unlock_queues();
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