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This patch eliminates a pointless test from appearing twice

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in vm_map_simplify_entry.  Basically, once you've verified that
    the objects in the adjacent vm_map_entry's are the same, either
    NULL or the same vm_object, there's no point in checking that the
    objects have the same behavior.

Obtained from:  Alan Cox <alc@cs.rice.edu>
This commit is contained in:
Matthew Dillon 1999-02-01 08:49:30 +00:00
parent 06fd697d15
commit b406c0f55c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=43493
1 changed files with 1 additions and 5 deletions
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6
sys/vm/vm_map.c
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@ -61,7 +61,7 @@
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*
* $Id: vm_map.c,v 1.144 1999/01/28 00:57:57 dillon Exp $
* $Id: vm_map.c,v 1.145 1999/01/31 14:09:25 julian Exp $
*/
/*
@ -908,8 +908,6 @@ vm_map_simplify_entry(map, entry)
prevsize = prev->end - prev->start;
if ( (prev->end == entry->start) &&
(prev->object.vm_object == entry->object.vm_object) &&
(!prev->object.vm_object ||
(prev->object.vm_object->behavior == entry->object.vm_object->behavior)) &&
(!prev->object.vm_object ||
(prev->offset + prevsize == entry->offset)) &&
(prev->eflags == entry->eflags) &&
@ -935,8 +933,6 @@ vm_map_simplify_entry(map, entry)
esize = entry->end - entry->start;
if ((entry->end == next->start) &&
(next->object.vm_object == entry->object.vm_object) &&
(!next->object.vm_object ||
(next->object.vm_object->behavior == entry->object.vm_object->behavior)) &&
(!entry->object.vm_object ||
(entry->offset + esize == next->offset)) &&
(next->eflags == entry->eflags) &&