47 static int anon_allocate_area(void **alloc_area, bool is_src)  in anon_allocate_area()  argument
49 	*alloc_area = mmap(NULL, nr_pages * page_size, PROT_READ | PROT_WRITE,  in anon_allocate_area()
51 	if (*alloc_area == MAP_FAILED) {  in anon_allocate_area()
52 		*alloc_area = NULL;  in anon_allocate_area()
73 static int hugetlb_allocate_area(void **alloc_area, bool is_src)  in hugetlb_allocate_area()  argument
81 	*alloc_area = mmap(NULL, size, PROT_READ | PROT_WRITE,  in hugetlb_allocate_area()
85 	if (*alloc_area == MAP_FAILED) {  in hugetlb_allocate_area()
86 		*alloc_area = NULL;  in hugetlb_allocate_area()
123 static int shmem_allocate_area(void **alloc_area, bool is_src)  in shmem_allocate_area()  argument
140 	*alloc_area = mmap(p, bytes, PROT_READ | PROT_WRITE, MAP_SHARED,  in shmem_allocate_area()
142 	if (*alloc_area == MAP_FAILED) {  in shmem_allocate_area()
143 		*alloc_area = NULL;  in shmem_allocate_area()
146 	if (*alloc_area != p)  in shmem_allocate_area()
152 		munmap(*alloc_area, bytes);  in shmem_allocate_area()
153 		*alloc_area = NULL;  in shmem_allocate_area()