static
void
rmdir_file(void)
{
int rv;
if (create_testfile()<0) {
return;
}
rv = rmdir(TESTFILE);
report_test(rv, errno, ENOTDIR, "rmdir a file");
remove(TESTFILE);
}
static
void
rmdir_file(void)
{
int rv;
report_begin("rmdir a file");
if (create_testfile()<0) {
report_aborted();
return;
}
rv = rmdir(TESTFILE);
report_check(rv, errno, ENOTDIR);
remove(TESTFILE);
}
static void setup(void)
{
tst_require_root(NULL);
tst_tmpdir();
TEST_PAUSE;
has_file(drop_caches_fname, 1);
has_file(meminfo_fname, 1);
/* check if readahead is supported */
ltp_syscall(__NR_readahead, 0, 0, 0);
pagesize = getpagesize();
create_testfile();
}
/* Test llapi_hsm_current_action */
void test52(void)
{
int rc;
int fd;
struct hsm_current_action hca;
/* No fd equivalent, so close it. */
fd = create_testfile(100);
close(fd);
rc = llapi_hsm_current_action(testfile, &hca);
ASSERTF(rc == 0, "llapi_hsm_current_action failed: %s", strerror(-rc));
ASSERTF(hca.hca_state, "hca_state=%u", hca.hca_state);
ASSERTF(hca.hca_action, "hca_state=%u", hca.hca_action);
rc = llapi_hsm_current_action(testfile, NULL);
ASSERTF(rc == -EFAULT, "llapi_hsm_current_action failed: %s",
strerror(-rc));
}
static
void
common_badpath(int (*func)(const char *path), int mk, int rm, const char *path,
const char *call, const char *pathdesc)
{
char mydesc[128];
int rv;
if (mk) {
if (create_testfile()<0) {
return;
}
}
snprintf(mydesc, sizeof(mydesc), "%s with %s path", call, pathdesc);
rv = func(path);
report_test(rv, errno, EFAULT, mydesc);
if (mk || rm) {
remove(TESTFILE);
}
}
/* Test llapi_hsm_state_get. */
void test50(void)
{
struct hsm_user_state hus;
int rc;
int fd;
fd = create_testfile(100);
/* With fd variant */
rc = llapi_hsm_state_get_fd(fd, &hus);
ASSERTF(rc == 0, "llapi_hsm_state_get_fd failed: %s", strerror(-rc));
ASSERTF(hus.hus_states == 0, "state=%u", hus.hus_states);
rc = llapi_hsm_state_get_fd(fd, NULL);
ASSERTF(rc == -EFAULT, "llapi_hsm_state_get_fd error: %s",
strerror(-rc));
rc = close(fd);
ASSERTF(rc == 0, "close failed: %s", strerror(errno));
/* Without fd */
rc = llapi_hsm_state_get(testfile, &hus);
ASSERTF(rc == 0, "llapi_hsm_state_get failed: %s", strerror(-rc));
ASSERTF(hus.hus_states == 0, "state=%u", hus.hus_states);
rc = llapi_hsm_state_get(testfile, NULL);
ASSERTF(rc == -EFAULT, "llapi_hsm_state_get error: %s",
strerror(-rc));
memset(&hus, 0xaa, sizeof(hus));
rc = llapi_hsm_state_get(testfile, &hus);
ASSERTF(rc == 0, "llapi_hsm_state_get failed: %s", strerror(-rc));
ASSERTF(hus.hus_states == 0, "state=%u", hus.hus_states);
ASSERTF(hus.hus_archive_id == 0, "archive_id=%u", hus.hus_archive_id);
ASSERTF(hus.hus_in_progress_state == 0, "hus_in_progress_state=%u",
hus.hus_in_progress_state);
ASSERTF(hus.hus_in_progress_action == 0, "hus_in_progress_action=%u",
hus.hus_in_progress_action);
}
void create_large_testfile(const char* name)
{
create_testfile(name, 1e6);
}
void create_small_testfile(const char* name)
{
create_testfile(name, 10);
}
static int client(apr_pool_t *p, client_socket_mode_t socket_mode,
const char *host, int start_server)
{
apr_status_t rv, tmprv;
apr_socket_t *sock;
char buf[120];
apr_file_t *f = NULL;
apr_size_t len;
apr_size_t expected_len;
apr_off_t current_file_offset;
apr_hdtr_t hdtr;
struct iovec headers[3];
struct iovec trailers[3];
apr_size_t bytes_read;
apr_pollset_t *pset;
apr_int32_t nsocks;
int connect_tries = 1;
int i;
int family;
apr_sockaddr_t *destsa;
apr_proc_t server;
apr_interval_time_t connect_retry_interval = apr_time_from_msec(50);
if (start_server) {
spawn_server(p, &server);
connect_tries = 5; /* give it a chance to start up */
}
create_testfile(p, TESTFILE);
rv = apr_file_open(&f, TESTFILE, APR_FOPEN_READ, 0, p);
if (rv != APR_SUCCESS) {
aprerr("apr_file_open()", rv);
}
if (!host) {
host = "127.0.0.1";
}
family = APR_INET;
rv = apr_sockaddr_info_get(&destsa, host, family, TESTSF_PORT, 0, p);
if (rv != APR_SUCCESS) {
aprerr("apr_sockaddr_info_get()", rv);
}
while (connect_tries--) {
apr_setup(p, &sock, &family);
rv = apr_socket_connect(sock, destsa);
if (connect_tries && APR_STATUS_IS_ECONNREFUSED(rv)) {
apr_status_t tmprv = apr_socket_close(sock);
if (tmprv != APR_SUCCESS) {
aprerr("apr_socket_close()", tmprv);
}
apr_sleep(connect_retry_interval);
connect_retry_interval *= 2;
}
else {
break;
}
}
if (rv != APR_SUCCESS) {
aprerr("apr_socket_connect()", rv);
}
switch(socket_mode) {
case BLK:
/* leave it blocking */
break;
case NONBLK:
/* set it non-blocking */
rv = apr_socket_opt_set(sock, APR_SO_NONBLOCK, 1);
if (rv != APR_SUCCESS) {
aprerr("apr_socket_opt_set(APR_SO_NONBLOCK)", rv);
}
break;
case TIMEOUT:
/* set a timeout */
rv = apr_socket_timeout_set(sock, 100 * APR_USEC_PER_SEC);
if (rv != APR_SUCCESS) {
aprerr("apr_socket_opt_set(APR_SO_NONBLOCK)", rv);
exit(1);
}
break;
default:
assert(1 != 1);
}
printf("Sending the file...\n");
hdtr.headers = headers;
hdtr.numheaders = 3;
hdtr.headers[0].iov_base = HDR1;
hdtr.headers[0].iov_len = strlen(hdtr.headers[0].iov_base);
hdtr.headers[1].iov_base = HDR2;
hdtr.headers[1].iov_len = strlen(hdtr.headers[1].iov_base);
hdtr.headers[2].iov_base = malloc(HDR3_LEN);
assert(hdtr.headers[2].iov_base);
memset(hdtr.headers[2].iov_base, HDR3_CHAR, HDR3_LEN);
hdtr.headers[2].iov_len = HDR3_LEN;
hdtr.trailers = trailers;
hdtr.numtrailers = 3;
hdtr.trailers[0].iov_base = TRL1;
hdtr.trailers[0].iov_len = strlen(hdtr.trailers[0].iov_base);
hdtr.trailers[1].iov_base = TRL2;
hdtr.trailers[1].iov_len = strlen(hdtr.trailers[1].iov_base);
hdtr.trailers[2].iov_base = malloc(TRL3_LEN);
memset(hdtr.trailers[2].iov_base, TRL3_CHAR, TRL3_LEN);
assert(hdtr.trailers[2].iov_base);
hdtr.trailers[2].iov_len = TRL3_LEN;
expected_len =
strlen(HDR1) + strlen(HDR2) + HDR3_LEN +
strlen(TRL1) + strlen(TRL2) + TRL3_LEN +
FILE_LENGTH;
if (socket_mode == BLK) {
current_file_offset = 0;
len = FILE_LENGTH;
rv = apr_socket_sendfile(sock, f, &hdtr, ¤t_file_offset, &len, 0);
if (rv != APR_SUCCESS) {
aprerr("apr_socket_sendfile()", rv);
}
printf("apr_socket_sendfile() updated offset with %ld\n",
(long int)current_file_offset);
printf("apr_socket_sendfile() updated len with %ld\n",
(long int)len);
printf("bytes really sent: %" APR_SIZE_T_FMT "\n",
expected_len);
if (len != expected_len) {
fprintf(stderr, "apr_socket_sendfile() didn't report the correct "
"number of bytes sent!\n");
exit(1);
}
}
else {
/* non-blocking... wooooooo */
apr_size_t total_bytes_sent;
apr_pollfd_t pfd;
pset = NULL;
rv = apr_pollset_create(&pset, 1, p, 0);
assert(!rv);
pfd.p = p;
pfd.desc_type = APR_POLL_SOCKET;
pfd.reqevents = APR_POLLOUT;
pfd.rtnevents = 0;
pfd.desc.s = sock;
pfd.client_data = NULL;
rv = apr_pollset_add(pset, &pfd);
assert(!rv);
total_bytes_sent = 0;
current_file_offset = 0;
len = FILE_LENGTH;
do {
apr_size_t tmplen;
tmplen = len; /* bytes remaining to send from the file */
printf("Calling apr_socket_sendfile()...\n");
printf("Headers (%d):\n", hdtr.numheaders);
for (i = 0; i < hdtr.numheaders; i++) {
printf("\t%ld bytes (%c)\n",
(long)hdtr.headers[i].iov_len,
*(char *)hdtr.headers[i].iov_base);
}
printf("File: %ld bytes from offset %ld\n",
(long)tmplen, (long)current_file_offset);
printf("Trailers (%d):\n", hdtr.numtrailers);
for (i = 0; i < hdtr.numtrailers; i++) {
printf("\t%ld bytes\n",
(long)hdtr.trailers[i].iov_len);
}
rv = apr_socket_sendfile(sock, f, &hdtr, ¤t_file_offset, &tmplen, 0);
printf("apr_socket_sendfile()->%d, sent %ld bytes\n", rv, (long)tmplen);
if (rv) {
if (APR_STATUS_IS_EAGAIN(rv)) {
assert(tmplen == 0);
nsocks = 1;
tmprv = apr_pollset_poll(pset, -1, &nsocks, NULL);
assert(!tmprv);
assert(nsocks == 1);
/* continue; */
}
}
total_bytes_sent += tmplen;
/* Adjust hdtr to compensate for partially-written
* data.
*/
/* First, skip over any header data which might have
* been written.
*/
while (tmplen && hdtr.numheaders) {
if (tmplen >= hdtr.headers[0].iov_len) {
tmplen -= hdtr.headers[0].iov_len;
--hdtr.numheaders;
++hdtr.headers;
}
else {
hdtr.headers[0].iov_len -= tmplen;
hdtr.headers[0].iov_base =
(char*) hdtr.headers[0].iov_base + tmplen;
tmplen = 0;
}
}
/* Now, skip over any file data which might have been
* written.
*/
if (tmplen <= len) {
current_file_offset += tmplen;
len -= tmplen;
tmplen = 0;
}
else {
tmplen -= len;
len = 0;
current_file_offset = 0;
}
/* Last, skip over any trailer data which might have
* been written.
*/
while (tmplen && hdtr.numtrailers) {
if (tmplen >= hdtr.trailers[0].iov_len) {
tmplen -= hdtr.trailers[0].iov_len;
--hdtr.numtrailers;
++hdtr.trailers;
}
else {
hdtr.trailers[0].iov_len -= tmplen;
hdtr.trailers[0].iov_base =
(char *)hdtr.trailers[0].iov_base + tmplen;
tmplen = 0;
}
}
} while (total_bytes_sent < expected_len &&
(rv == APR_SUCCESS ||
(APR_STATUS_IS_EAGAIN(rv) && socket_mode != TIMEOUT)));
if (total_bytes_sent != expected_len) {
fprintf(stderr,
"client problem: sent %ld of %ld bytes\n",
(long)total_bytes_sent, (long)expected_len);
exit(1);
}
if (rv) {
fprintf(stderr,
"client problem: rv %d\n",
rv);
exit(1);
}
}
current_file_offset = 0;
rv = apr_file_seek(f, APR_CUR, ¤t_file_offset);
if (rv != APR_SUCCESS) {
aprerr("apr_file_seek()", rv);
}
printf("After apr_socket_sendfile(), the kernel file pointer is "
"at offset %ld.\n",
(long int)current_file_offset);
rv = apr_socket_shutdown(sock, APR_SHUTDOWN_WRITE);
if (rv != APR_SUCCESS) {
aprerr("apr_socket_shutdown()", rv);
}
/* in case this is the non-blocking test, set socket timeout;
* we're just waiting for EOF */
rv = apr_socket_timeout_set(sock, apr_time_from_sec(3));
if (rv != APR_SUCCESS) {
aprerr("apr_socket_timeout_set()", rv);
}
bytes_read = 1;
rv = apr_socket_recv(sock, buf, &bytes_read);
if (rv != APR_EOF) {
aprerr("apr_socket_recv() (expected APR_EOF)", rv);
}
if (bytes_read != 0) {
fprintf(stderr, "We expected to get 0 bytes read with APR_EOF\n"
"but instead we read %ld bytes.\n",
(long int)bytes_read);
exit(1);
}
printf("client: apr_socket_sendfile() worked as expected!\n");
rv = apr_file_remove(TESTFILE, p);
if (rv != APR_SUCCESS) {
aprerr("apr_file_remove()", rv);
}
if (start_server) {
apr_exit_why_e exitwhy;
apr_size_t nbytes;
char responsebuf[1024];
int exitcode;
rv = apr_file_pipe_timeout_set(server.out, apr_time_from_sec(2));
if (rv != APR_SUCCESS) {
aprerr("apr_file_pipe_timeout_set()", rv);
}
nbytes = sizeof(responsebuf);
rv = apr_file_read(server.out, responsebuf, &nbytes);
if (rv != APR_SUCCESS) {
aprerr("apr_file_read() messages from server", rv);
}
printf("%.*s", (int)nbytes, responsebuf);
rv = apr_proc_wait(&server, &exitcode, &exitwhy, APR_WAIT);
if (rv != APR_CHILD_DONE) {
aprerr("apr_proc_wait() (expected APR_CHILD_DONE)", rv);
}
if (exitcode != 0) {
fprintf(stderr, "sendfile server returned %d\n", exitcode);
exit(1);
}
}
return 0;
}
/* Helper to simulate archiving a file. No actual data movement
* happens. */
void helper_archiving(void (*progress)
(struct hsm_copyaction_private *hcp, size_t length),
const size_t length)
{
int rc;
int fd;
struct hsm_copytool_private *ctdata;
struct hsm_user_request *hur;
struct hsm_action_list *hal;
struct hsm_action_item *hai;
int msgsize;
struct hsm_copyaction_private *hcp;
struct hsm_user_state hus;
fd = create_testfile(length);
rc = llapi_hsm_copytool_register(&ctdata, fsmountdir,
0, NULL, 0);
ASSERTF(rc == 0, "llapi_hsm_copytool_register failed: %s",
strerror(-rc));
/* Create and send the archive request. */
hur = llapi_hsm_user_request_alloc(1, 0);
ASSERTF(hur != NULL, "llapi_hsm_user_request_alloc returned NULL");
hur->hur_request.hr_action = HUA_ARCHIVE;
hur->hur_request.hr_archive_id = 1;
hur->hur_request.hr_flags = 0;
hur->hur_request.hr_itemcount = 1;
hur->hur_request.hr_data_len = 0;
hur->hur_user_item[0].hui_extent.offset = 0;
hur->hur_user_item[0].hui_extent.length = -1;
rc = llapi_fd2fid(fd, &hur->hur_user_item[0].hui_fid);
ASSERTF(rc == 0, "llapi_fd2fid failed: %s", strerror(-rc));
close(fd);
rc = llapi_hsm_request(testfile, hur);
ASSERTF(rc == 0, "llapi_hsm_request failed: %s", strerror(-rc));
free(hur);
/* Read the request */
rc = llapi_hsm_copytool_recv(ctdata, &hal, &msgsize);
ASSERTF(rc == 0, "llapi_hsm_copytool_recv failed: %s", strerror(-rc));
ASSERTF(hal->hal_count == 1, "hal_count=%d", hal->hal_count);
hai = hai_first(hal);
ASSERTF(hai != NULL, "hai_first returned NULL");
ASSERTF(hai->hai_action == HSMA_ARCHIVE,
"hai_action=%d", hai->hai_action);
/* "Begin" archiving */
hcp = NULL;
rc = llapi_hsm_action_begin(&hcp, ctdata, hai, -1, 0, false);
ASSERTF(rc == 0, "llapi_hsm_action_begin failed: %s", strerror(-rc));
ASSERTF(hcp != NULL, "hcp is NULL");
if (progress)
progress(hcp, length);
/* Done archiving */
rc = llapi_hsm_action_end(&hcp, &hai->hai_extent, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_action_end failed: %s", strerror(-rc));
ASSERTF(hcp == NULL, "hcp is NULL");
/* Close HSM client */
rc = llapi_hsm_copytool_unregister(&ctdata);
ASSERTF(rc == 0, "llapi_hsm_copytool_unregister failed: %s",
strerror(-rc));
/* Final check */
rc = llapi_hsm_state_get(testfile, &hus);
ASSERTF(rc == 0, "llapi_hsm_state_get failed: %s", strerror(-rc));
ASSERTF(hus.hus_states == (HS_EXISTS | HS_ARCHIVED),
"state=%u", hus.hus_states);
}
/* Test llapi_hsm_state_set. */
void test51(void)
{
int rc;
int fd;
int i;
struct hsm_user_state hus;
fd = create_testfile(100);
rc = llapi_hsm_state_set_fd(fd, 0, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
/* Set archive id */
for (i = 0; i <= 32; i++) {
rc = llapi_hsm_state_set_fd(fd, HS_EXISTS, 0, i);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s",
strerror(-rc));
rc = llapi_hsm_state_get_fd(fd, &hus);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s",
strerror(-rc));
ASSERTF(hus.hus_states == HS_EXISTS, "state=%u",
hus.hus_states);
ASSERTF(hus.hus_archive_id == i, "archive_id=%u, i=%d",
hus.hus_archive_id, i);
}
/* Invalid archive numbers */
rc = llapi_hsm_state_set_fd(fd, HS_EXISTS, 0, 33);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_EXISTS, 0, 151);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_EXISTS, 0, -1789);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd: %s", strerror(-rc));
/* Settable flags, with respect of the HSM file state transition rules:
* DIRTY without EXISTS: no dirty if no archive was created
* DIRTY and RELEASED: a dirty file could not be released
* RELEASED without ARCHIVED: do not release a non-archived file
* LOST without ARCHIVED: cannot lost a non-archived file.
*/
rc = llapi_hsm_state_set_fd(fd, HS_DIRTY, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_EXISTS, 0);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd failed: %s",
strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_DIRTY, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_EXISTS, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_DIRTY, 0, 0);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd failed: %s",
strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_RELEASED, 0, 0);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd failed: %s",
strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_LOST, 0, 0);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd failed: %s",
strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_ARCHIVED, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_RELEASED, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_LOST, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_DIRTY|HS_EXISTS, 0, 0);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd failed: %s",
strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_RELEASED, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_DIRTY|HS_EXISTS, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_ARCHIVED, 0);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd failed: %s",
strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_LOST, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_ARCHIVED, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_NORELEASE, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_NORELEASE, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, HS_NOARCHIVE, 0, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0, HS_NOARCHIVE, 0);
ASSERTF(rc == 0, "llapi_hsm_state_set_fd failed: %s", strerror(-rc));
/* Bogus flags for good measure. */
rc = llapi_hsm_state_set_fd(fd, 0x00080000, 0, 0);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd: %s", strerror(-rc));
rc = llapi_hsm_state_set_fd(fd, 0x80000000, 0, 0);
ASSERTF(rc == -EINVAL, "llapi_hsm_state_set_fd: %s", strerror(-rc));
close(fd);
}
static void test_readahead(unsigned int n)
{
unsigned long read_bytes, read_bytes_ra;
long long usec, usec_ra;
unsigned long cached_high, cached_low, cached, cached_ra;
int ret;
struct tcase *tc = &tcases[n];
tst_res(TINFO, "Test #%d: %s", n, tc->tname);
if (tc->use_overlay && !ovl_mounted) {
tst_res(TCONF,
"overlayfs is not configured in this kernel.");
return;
}
create_testfile(tc->use_overlay);
/* find out how much can cache hold if we read whole file */
read_testfile(tc, 0, testfile, testfile_size, &read_bytes, &usec,
&cached);
cached_high = get_cached_size();
sync();
drop_caches();
cached_low = get_cached_size();
cached_max = MAX(cached_max, cached_high - cached_low);
tst_res(TINFO, "read_testfile(0)");
read_testfile(tc, 0, testfile, testfile_size, &read_bytes, &usec,
&cached);
if (cached > cached_low)
cached = cached - cached_low;
else
cached = 0;
sync();
drop_caches();
cached_low = get_cached_size();
tst_res(TINFO, "read_testfile(1)");
ret = read_testfile(tc, 1, testfile, testfile_size, &read_bytes_ra,
&usec_ra, &cached_ra);
if (ret == EINVAL) {
if (tc->use_fadvise &&
(!tc->use_overlay || !fadvise_supported)) {
fadvise_supported = 0;
tst_res(TCONF, "CONFIG_ADVISE_SYSCALLS not configured "
"in kernel?");
return;
}
if (!tc->use_overlay || !readahead_supported) {
readahead_supported = 0;
tst_res(TCONF, "readahead not supported on %s",
tst_device->fs_type);
return;
}
}
if (ret) {
tst_res(TFAIL | TTERRNO, "%s failed on %s",
tc->use_fadvise ? "fadvise" : "readahead",
tc->use_overlay ? "overlayfs" :
tst_device->fs_type);
return;
}
if (cached_ra > cached_low)
cached_ra = cached_ra - cached_low;
else
cached_ra = 0;
tst_res(TINFO, "read_testfile(0) took: %lli usec", usec);
tst_res(TINFO, "read_testfile(1) took: %lli usec", usec_ra);
if (has_file(PROC_IO_FNAME, 0)) {
tst_res(TINFO, "read_testfile(0) read: %ld bytes", read_bytes);
tst_res(TINFO, "read_testfile(1) read: %ld bytes",
read_bytes_ra);
/* actual number of read bytes depends on total RAM */
if (read_bytes_ra < read_bytes)
tst_res(TPASS, "readahead saved some I/O");
else
tst_res(TFAIL, "readahead failed to save any I/O");
} else {
tst_res(TCONF, "Your system doesn't have /proc/self/io,"
" unable to determine read bytes during test");
}
tst_res(TINFO, "cache can hold at least: %ld kB", cached_max);
tst_res(TINFO, "read_testfile(0) used cache: %ld kB", cached);
tst_res(TINFO, "read_testfile(1) used cache: %ld kB", cached_ra);
if (cached_max * 1024 >= testfile_size) {
/*
* if cache can hold ~testfile_size then cache increase
* for readahead should be at least testfile_size/2
*/
if (cached_ra * 1024 > testfile_size / 2)
tst_res(TPASS, "using cache as expected");
else if (!cached_ra)
tst_res(TFAIL, "readahead failed to use any cache");
else
tst_res(TWARN, "using less cache than expected");
} else {
tst_res(TCONF, "Page cache on your system is too small "
"to hold whole testfile.");
}
}
