drivers/dma-buf/udmabuf.c

17 #include <linux/memfd.h>
30 	int memfd, ret;
36 	memfd = memfd_create("udmabuf-test", flags);
37 	if (memfd < 0) {
38 		ksft_print_msg("%s: [skip,no-memfd]\n", TEST_PREFIX);
42 	ret = fcntl(memfd, F_ADD_SEALS, F_SEAL_SHRINK);
48 	ret = ftruncate(memfd, size);
50 		ksft_print_msg("%s: [FAIL,memfd-truncate]\n", TEST_PREFIX);
54 	return memfd;
57 static int create_udmabuf_list(int devfd, int memfd, off64_t memfd_size)
70 		list->list[i].memfd  = memfd;
136 	int devfd, memfd, buf, ret;
151 	memfd = memfd_create("udmabuf-test", MFD_ALLOW_SEALING);
152 	if (memfd < 0) {
153 		ksft_print_msg("%s: [skip,no-memfd]\n", TEST_PREFIX);
157 	ret = fcntl(memfd, F_ADD_SEALS, F_SEAL_SHRINK);
164 	ret = ftruncate(memfd, size);
166 		ksft_print_msg("%s: [FAIL,memfd-truncate]\n", TEST_PREFIX);
173 	create.memfd  = memfd;
183 	create.memfd  = memfd;
192 	/* should fail (not memfd) */
193 	create.memfd  = 0; /* stdin */
204 	addr1 = mmap_fd(memfd, size);
206 	create.memfd  = memfd;
217 	close(memfd);
221 	memfd = create_memfd_with_seals(size, false);
222 	addr1 = mmap_fd(memfd, size);
224 	buf = create_udmabuf_list(devfd, memfd, size);
234 	close(memfd);
239 	memfd = create_memfd_with_seals(size, true);
240 	addr1 = mmap_fd(memfd, size);
242 	buf = create_udmabuf_list(devfd, memfd, size);
252 	close(memfd);
254 	/* same test as above but we pin first before writing to memfd */
257 	memfd = create_memfd_with_seals(size, true);
258 	buf = create_udmabuf_list(devfd, memfd, size);
260 	addr1 = mmap_fd(memfd, size);
270 	close(memfd);