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Replaced the sAvailableMemoryLock benaphore with a mutex.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25379 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2008-05-08 15:57:59 +00:00
parent adf376c941
commit 06b580d76f
1 changed files with 6 additions and 7 deletions
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13
src/system/kernel/vm/vm.cpp
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@ -197,7 +197,7 @@ static mutex sMappingLock;
static mutex sAreaCacheLock;
static off_t sAvailableMemory;
static benaphore sAvailableMemoryLock;
static mutex sAvailableMemoryLock;
// function declarations
static void delete_area(vm_address_space *addressSpace, vm_area *area);
@ -3583,7 +3583,6 @@ vm_init(kernel_args *args)
// initialize some globals
sNextAreaID = 1;
sAreaHashLock = -1;
sAvailableMemoryLock.sem = -1;
vm_page_init_num_pages(args);
sAvailableMemory = vm_page_num_pages() * B_PAGE_SIZE;
@ -3690,7 +3689,7 @@ vm_init_post_sem(kernel_args *args)
// since we're still single threaded and only the kernel address space exists,
// it isn't that hard to find all of the ones we need to create
benaphore_init(&sAvailableMemoryLock, "available memory lock");
mutex_init(&sAvailableMemoryLock, "available memory lock");
arch_vm_translation_map_init_post_sem(args);
vm_address_space_init_post_sem();
@ -4484,11 +4483,11 @@ vm_put_physical_page(addr_t vaddr)
void
vm_unreserve_memory(size_t amount)
{
benaphore_lock(&sAvailableMemoryLock);
mutex_lock(&sAvailableMemoryLock);
sAvailableMemory += amount;
benaphore_unlock(&sAvailableMemoryLock);
mutex_unlock(&sAvailableMemoryLock);
}
@ -4496,7 +4495,7 @@ status_t
vm_try_reserve_memory(size_t amount)
{
status_t status;
benaphore_lock(&sAvailableMemoryLock);
mutex_lock(&sAvailableMemoryLock);
//dprintf("try to reserve %lu bytes, %Lu left\n", amount, sAvailableMemory);
@ -4506,7 +4505,7 @@ vm_try_reserve_memory(size_t amount)
} else
status = B_NO_MEMORY;
benaphore_unlock(&sAvailableMemoryLock);
mutex_unlock(&sAvailableMemoryLock);
return status;
}