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From 95062009c1d55ecefa976c81e9cee941eae600fe Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Sat, 25 Jul 2015 02:21:33 +0200
Subject: [PATCH gnumach 08/10] vm/object: use a general lock to protect the
object cache
* vm/vm_object.c: Use a general lock to protect the object cache.
---
vm/vm_object.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/vm/vm_object.c b/vm/vm_object.c
index deac0c2..b403d30 100644
--- a/vm/vm_object.c
+++ b/vm/vm_object.c
@@ -178,14 +178,16 @@ queue_head_t vm_object_cached_list;
int vm_object_cached_count;
int vm_object_cached_max = 4000; /* may be patched*/
-decl_simple_lock_data(,vm_object_cached_lock_data)
+struct lock vm_object_cache_lock_data;
+#define vm_object_cache_lock_init() \
+ lock_init(&vm_object_cache_lock_data, FALSE)
#define vm_object_cache_lock() \
- simple_lock(&vm_object_cached_lock_data)
+ lock_write(&vm_object_cache_lock_data)
#define vm_object_cache_lock_try() \
- simple_lock_try(&vm_object_cached_lock_data)
+ lock_try_write(&vm_object_cache_lock_data)
#define vm_object_cache_unlock() \
- simple_unlock(&vm_object_cached_lock_data)
+ lock_write_done(&vm_object_cache_lock_data)
/*
* Number of physical pages referenced by cached objects.
@@ -261,7 +263,7 @@ void vm_object_bootstrap(void)
sizeof(struct vm_object), 0, NULL, NULL, NULL, 0);
queue_init(&vm_object_cached_list);
- simple_lock_init(&vm_object_cached_lock_data);
+ vm_object_cache_lock_init();
/*
* Fill in a template object, for quick initialization
--
2.1.4
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