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Moved vm_map_lock call to inside the splhigh protection in vm_map_find().

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This closes a probably rare but nonetheless real window that would result
in a process hanging or the system panicing.

Reviewed by:	dyson, davidg
Submitted by:	kato@eclogite.eps.nagoya-u.ac.jp (KATO Takenori)
This commit is contained in:
David Greenman 1995-11-12 08:58:58 +00:00
parent e7ade28530
commit bea41bcf3a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=12226
1 changed files with 2 additions and 2 deletions
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4
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 1.24 1995/08/26 23:18:38 bde Exp $
* $Id: vm_map.c,v 1.25 1995/10/23 05:35:44 dyson Exp $
*/
/*
@ -765,11 +765,11 @@ vm_map_find(map, object, offset, addr, length, find_space)
int result, s = 0;
start = *addr;
vm_map_lock(map);
if (map == kmem_map)
s = splhigh();
vm_map_lock(map);
if (find_space) {
if (vm_map_findspace(map, start, length, addr)) {
vm_map_unlock(map);