vmm: dealwithrequest returns an errno rather than a bool

src/include/kernel/vmm.h

@@ -57,7 +57,7 @@ typedef struct {
 void 		vmm_init();
 void 		vmm_destroy(vmm_context* ctx);
 void*		vmm_tophysical(void* addr);
-bool 		vmm_dealwithrequest(void* addr, long error, bool user);
+int 		vmm_dealwithrequest(void* addr, long error, bool user);
 bool 		vmm_setused(void* addr, size_t pagec, size_t mmuflags);
 bool		vmm_unmap(void* addr, size_t pagec);
 bool		vmm_map(void* paddr, void* vaddr, size_t pagec, size_t mmuflags);

src/sys/mm/vmm.c

@@ -638,27 +638,27 @@ bool vmm_allocnowat(void* addr, size_t mmuflags, size_t size){
 
 // called by the page fault handler
 
-bool vmm_dealwithrequest(void* addr, long error, bool user){
+int vmm_dealwithrequest(void* addr, long error, bool user){
 	
 	if(user && addr > USER_SPACE_END)
-		return false;
+		return EFAULT;
 
 	int* lock;
 	vmm_mapping** start = NULL;
 	
 	getcontextinfo(addr, &lock, &start);
 	
-	if(!start) return false;
+	if(!start) return EFAULT;
 
 	spinlock_acquire(lock);
 
 
-	bool status;
+	int status;
 	vmm_mapping* map = findmappingfromaddr(*start, addr);
 	void* paddr;
 
 	if((!map) || map->type == VMM_TYPE_FREE){
-		status = false;
+		status = EFAULT;
 		goto done;
 	}
 
@@ -675,7 +675,7 @@ bool vmm_dealwithrequest(void* addr, long error, bool user){
 
 
 	if(goodmmuflags != (map->mmuflags & goodmmuflags)){
-		status = false;
+		status = EFAULT;
 		goto done;
 	}
 	
@@ -697,7 +697,7 @@ bool vmm_dealwithrequest(void* addr, long error, bool user){
 
 
 	if(addr == NULL || arch_mmu_map(cls->context->context, paddr, addr, map->mmuflags) == false){
-		status = false;	
+		status = ENOMEM;	
 		goto done;
 	}
 	
@@ -709,7 +709,7 @@ bool vmm_dealwithrequest(void* addr, long error, bool user){
 		vfs_read(&err, map->data, addr, PAGE_SIZE, map->offset + offset, NULL);
 	}
 	
-	status = true;
+	status = 0;
 	
 	done: