91 	void *mmap_ptr, *tmp_ptr;  in test_ringbuf()  local
105 	mmap_ptr = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, rb_fd, 0);  in test_ringbuf()
106 	ASSERT_OK_PTR(mmap_ptr, "rw_cons_pos");  in test_ringbuf()
107 	tmp_ptr = mremap(mmap_ptr, page_size, 2 * page_size, MREMAP_MAYMOVE);  in test_ringbuf()
110 	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_EXEC), "exec_cons_pos_protect");  in test_ringbuf()
111 	ASSERT_OK(munmap(mmap_ptr, page_size), "unmap_rw");  in test_ringbuf()
114 	mmap_ptr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, rb_fd, page_size);  in test_ringbuf()
116 	ASSERT_ERR_PTR(mmap_ptr, "wr_prod_pos");  in test_ringbuf()
120 	mmap_ptr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, rb_fd, 2 * page_size);  in test_ringbuf()
122 	ASSERT_ERR_PTR(mmap_ptr, "wr_data_page_one");  in test_ringbuf()
124 	mmap_ptr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, rb_fd, 3 * page_size);  in test_ringbuf()
125 	ASSERT_ERR_PTR(mmap_ptr, "wr_data_page_two");  in test_ringbuf()
126 	mmap_ptr = mmap(NULL, 2 * page_size, PROT_WRITE, MAP_SHARED, rb_fd, 2 * page_size);  in test_ringbuf()
127 	ASSERT_ERR_PTR(mmap_ptr, "wr_data_page_all");  in test_ringbuf()
130 	mmap_ptr = mmap(NULL, 4 * page_size, PROT_READ, MAP_SHARED, rb_fd, 0);  in test_ringbuf()
131 	if (!ASSERT_OK_PTR(mmap_ptr, "ro_prod_pos"))  in test_ringbuf()
134 	ASSERT_ERR(mprotect(mmap_ptr, 4 * page_size, PROT_WRITE), "write_protect");  in test_ringbuf()
135 	ASSERT_ERR(mprotect(mmap_ptr, 4 * page_size, PROT_EXEC), "exec_protect");  in test_ringbuf()
136 	ASSERT_ERR_PTR(mremap(mmap_ptr, 0, 4 * page_size, MREMAP_MAYMOVE), "ro_remap");  in test_ringbuf()
137 	ASSERT_OK(munmap(mmap_ptr, 4 * page_size), "unmap_ro");  in test_ringbuf()
140 	mmap_ptr = mmap(NULL, page_size, PROT_READ, MAP_SHARED, rb_fd, page_size);  in test_ringbuf()
141 	if (!ASSERT_OK_PTR(mmap_ptr, "ro_prod_pos"))  in test_ringbuf()
144 	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_WRITE), "write_protect");  in test_ringbuf()
145 	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_EXEC), "exec_protect");  in test_ringbuf()
146 	ASSERT_ERR_PTR(mremap(mmap_ptr, 0, 3 * page_size, MREMAP_MAYMOVE), "ro_remap");  in test_ringbuf()
147 	ASSERT_OK(munmap(mmap_ptr, page_size), "unmap_ro");  in test_ringbuf()