ba44a1e8e1
for temporary memory anymore, it's the store's responsibility to do that correctly now, and that functionality is reached via the vm_cache using vm_cache_set_minimal_commitment(). Therefore, the vm_store commit() function now returns a status instead of the size that could be commited. Replaced the max_commit mechanism with one that cares about the available memory, stores can reserve and unreserve such memory. The anonymous_commit() will now fail in case it could not reserve the needed amount of memory. git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9777 a95241bf-73f2-0310-859d-f6bbb57e9c96
37 lines
1.1 KiB
C
Executable File
37 lines
1.1 KiB
C
Executable File
/*
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** Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
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** Distributed under the terms of the NewOS License.
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*/
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#ifndef _KERNEL_VM_CACHE_H
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#define _KERNEL_VM_CACHE_H
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#include <kernel.h>
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#include <vm.h>
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struct kernel_args;
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#ifdef __cplusplus
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extern "C" {
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#endif
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status_t vm_cache_init(struct kernel_args *ka);
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vm_cache *vm_cache_create(vm_store *store);
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vm_cache_ref *vm_cache_ref_create(vm_cache *cache);
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void vm_cache_acquire_ref(vm_cache_ref *cache_ref, bool acquire_store_ref);
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void vm_cache_release_ref(vm_cache_ref *cache_ref);
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vm_page *vm_cache_lookup_page(vm_cache_ref *cacheRef, off_t page);
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void vm_cache_insert_page(vm_cache_ref *cacheRef, vm_page *page, off_t offset);
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void vm_cache_remove_page(vm_cache_ref *cacheRef, vm_page *page);
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status_t vm_cache_set_minimal_commitment(vm_cache_ref *ref, off_t commitment);
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status_t vm_cache_resize(vm_cache_ref *cacheRef, size_t newSize);
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status_t vm_cache_insert_region(vm_cache_ref *cacheRef, vm_region *region);
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status_t vm_cache_remove_region(vm_cache_ref *cacheRef, vm_region *region);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _KERNEL_VM_CACHE_H */
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