struct verify_header *hdr, unsigned int header_num,
unsigned int header_len);
-static void fill_pattern(struct thread_data *td, void *p, unsigned int len,
- char *pattern, unsigned int pattern_bytes)
+void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len)
{
- switch (pattern_bytes) {
- case 0:
- assert(0);
- break;
- case 1:
- dprint(FD_VERIFY, "fill verify pattern b=0 len=%u\n", len);
- memset(p, pattern[0], len);
- break;
- default: {
- unsigned int i = 0, size = 0;
- unsigned char *b = p;
-
- dprint(FD_VERIFY, "fill verify pattern b=%d len=%u\n",
- pattern_bytes, len);
-
- while (i < len) {
- size = pattern_bytes;
- if (size > (len - i))
- size = len - i;
- memcpy(b+i, pattern, size);
- i += size;
- }
- break;
- }
- }
+ fill_pattern(p, len, td->o.buffer_pattern, td->o.buffer_pattern_bytes);
}
-void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len)
+void __fill_buffer(struct thread_options *o, unsigned long seed, void *p,
+ unsigned int len)
{
- fill_pattern(td, p, len, td->o.buffer_pattern, td->o.buffer_pattern_bytes);
+ __fill_random_buf_percentage(seed, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
+}
+
+unsigned long fill_buffer(struct thread_data *td, void *p, unsigned int len)
+{
+ struct frand_state *fs = &td->verify_state;
+ struct thread_options *o = &td->o;
+
+ return fill_random_buf_percentage(fs, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
}
void fill_verify_pattern(struct thread_data *td, void *p, unsigned int len,
struct io_u *io_u, unsigned long seed, int use_seed)
{
- if (!td->o.verify_pattern_bytes) {
+ struct thread_options *o = &td->o;
+
+ if (!o->verify_pattern_bytes) {
dprint(FD_VERIFY, "fill random bytes len=%u\n", len);
if (use_seed)
- __fill_random_buf(p, len, seed);
+ __fill_buffer(o, seed, p, len);
else
- io_u->rand_seed = fill_random_buf(&td->__verify_state, p, len);
+ io_u->rand_seed = fill_buffer(td, p, len);
return;
}
if (io_u->buf_filled_len >= len) {
dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
- td->o.verify_pattern_bytes, len);
+ o->verify_pattern_bytes, len);
return;
}
- fill_pattern(td, p, len, td->o.verify_pattern, td->o.verify_pattern_bytes);
-
+ fill_pattern(p, len, o->verify_pattern, o->verify_pattern_bytes);
io_u->buf_filled_len = len;
}
* state of numberio, that would have been written to each block
* in a previous run of fio, has been reached.
*/
- if ((td_write(td) || td_rw(td)) && (td_min_bs(td) == td_max_bs(td)))
+ if ((td_write(td) || td_rw(td)) && (td_min_bs(td) == td_max_bs(td)) &&
+ !td->o.time_based)
if (!td->o.verify_only || td->o.loops == 0)
if (vh->numberio != io_u->numberio)
ret = EILSEQ;
dprint(FD_VERIFY, "get_next_verify: ret io_u %p\n", io_u);
if (!td->o.verify_pattern_bytes) {
- io_u->rand_seed = __rand(&td->__verify_state);
+ io_u->rand_seed = __rand(&td->verify_state);
if (sizeof(int) != sizeof(long *))
- io_u->rand_seed *= __rand(&td->__verify_state);
+ io_u->rand_seed *= __rand(&td->verify_state);
}
return 0;
}
struct io_u *io_u;
int ret = 0;
- if (td->o.verify_cpumask_set &&
+ if (fio_option_is_set(&td->o, verify_cpumask) &&
fio_setaffinity(td->pid, td->o.verify_cpumask)) {
log_err("fio: failed setting verify thread affinity\n");
goto done;
free(td->verify_threads);
td->verify_threads = NULL;
}
+
+struct all_io_list *get_all_io_list(int save_mask, size_t *sz)
+{
+ struct all_io_list *rep;
+ struct thread_data *td;
+ size_t depth;
+ void *next;
+ int i, nr;
+
+ compiletime_assert(sizeof(struct all_io_list) == 8, "all_io_list");
+
+ /*
+ * Calculate reply space needed. We need one 'io_state' per thread,
+ * and the size will vary depending on depth.
+ */
+ depth = 0;
+ nr = 0;
+ for_each_td(td, i) {
+ if (save_mask != IO_LIST_ALL && (i + 1) != save_mask)
+ continue;
+ td->stop_io = 1;
+ td->flags |= TD_F_VSTATE_SAVED;
+ depth += td->o.iodepth;
+ nr++;
+ }
+
+ if (!nr)
+ return NULL;
+
+ *sz = sizeof(*rep);
+ *sz += nr * sizeof(struct thread_io_list);
+ *sz += depth * sizeof(uint64_t);
+ rep = malloc(*sz);
+
+ rep->threads = cpu_to_le64((uint64_t) nr);
+
+ next = &rep->state[0];
+ for_each_td(td, i) {
+ struct thread_io_list *s = next;
+ unsigned int comps;
+
+ if (save_mask != IO_LIST_ALL && (i + 1) != save_mask)
+ continue;
+
+ if (td->last_write_comp) {
+ int j, k;
+
+ if (td->io_blocks[DDIR_WRITE] < td->o.iodepth)
+ comps = td->io_blocks[DDIR_WRITE];
+ else
+ comps = td->o.iodepth;
+
+ k = td->last_write_idx - 1;
+ for (j = 0; j < comps; j++) {
+ if (k == -1)
+ k = td->o.iodepth - 1;
+ s->offsets[j] = cpu_to_le64(td->last_write_comp[k]);
+ k--;
+ }
+ } else
+ comps = 0;
+
+ s->no_comps = cpu_to_le64((uint64_t) comps);
+ s->depth = cpu_to_le64((uint64_t) td->o.iodepth);
+ s->numberio = cpu_to_le64((uint64_t) td->io_issues[DDIR_WRITE]);
+ s->index = cpu_to_le64((uint64_t) i);
+ s->rand.s[0] = cpu_to_le32(td->random_state.s1);
+ s->rand.s[1] = cpu_to_le32(td->random_state.s2);
+ s->rand.s[2] = cpu_to_le32(td->random_state.s3);
+ s->rand.s[3] = 0;
+ strncpy((char *) s->name, td->o.name, sizeof(s->name));
+ next = io_list_next(s);
+ }
+
+ return rep;
+}
+
+static int open_state_file(const char *name, const char *prefix, int num,
+ int for_write)
+{
+ char out[64];
+ int flags;
+ int fd;
+
+ if (for_write)
+ flags = O_CREAT | O_TRUNC | O_WRONLY | O_SYNC;
+ else
+ flags = O_RDONLY;
+
+ verify_state_gen_name(out, sizeof(out), name, prefix, num);
+
+ fd = open(out, flags, 0644);
+ if (fd == -1) {
+ perror("fio: open state file");
+ return -1;
+ }
+
+ return fd;
+}
+
+static int write_thread_list_state(struct thread_io_list *s,
+ const char *prefix)
+{
+ struct verify_state_hdr hdr;
+ uint64_t crc;
+ ssize_t ret;
+ int fd;
+
+ fd = open_state_file((const char *) s->name, prefix, s->index, 1);
+ if (fd == -1)
+ return 1;
+
+ crc = fio_crc32c((void *)s, thread_io_list_sz(s));
+
+ hdr.version = cpu_to_le64((uint64_t) VSTATE_HDR_VERSION);
+ hdr.size = cpu_to_le64((uint64_t) thread_io_list_sz(s));
+ hdr.crc = cpu_to_le64(crc);
+ ret = write(fd, &hdr, sizeof(hdr));
+ if (ret != sizeof(hdr))
+ goto write_fail;
+
+ ret = write(fd, s, thread_io_list_sz(s));
+ if (ret != thread_io_list_sz(s)) {
+write_fail:
+ if (ret < 0)
+ perror("fio: write state file");
+ log_err("fio: failed to write state file\n");
+ ret = 1;
+ } else
+ ret = 0;
+
+ close(fd);
+ return ret;
+}
+
+void __verify_save_state(struct all_io_list *state, const char *prefix)
+{
+ struct thread_io_list *s = &state->state[0];
+ unsigned int i;
+
+ for (i = 0; i < le64_to_cpu(state->threads); i++) {
+ write_thread_list_state(s, prefix);
+ s = io_list_next(s);
+ }
+}
+
+void verify_save_state(void)
+{
+ struct all_io_list *state;
+ size_t sz;
+
+ state = get_all_io_list(IO_LIST_ALL, &sz);
+ if (state) {
+ __verify_save_state(state, "local");
+ free(state);
+ }
+}
+
+void verify_free_state(struct thread_data *td)
+{
+ if (td->vstate)
+ free(td->vstate);
+}
+
+void verify_convert_assign_state(struct thread_data *td,
+ struct thread_io_list *s)
+{
+ int i;
+
+ s->no_comps = le64_to_cpu(s->no_comps);
+ s->depth = le64_to_cpu(s->depth);
+ s->numberio = le64_to_cpu(s->numberio);
+ for (i = 0; i < 4; i++)
+ s->rand.s[i] = le32_to_cpu(s->rand.s[i]);
+ for (i = 0; i < s->no_comps; i++)
+ s->offsets[i] = le64_to_cpu(s->offsets[i]);
+
+ td->vstate = s;
+}
+
+int verify_state_hdr(struct verify_state_hdr *hdr, struct thread_io_list *s)
+{
+ uint64_t crc;
+
+ hdr->version = le64_to_cpu(hdr->version);
+ hdr->size = le64_to_cpu(hdr->size);
+ hdr->crc = le64_to_cpu(hdr->crc);
+
+ if (hdr->version != VSTATE_HDR_VERSION)
+ return 1;
+
+ crc = fio_crc32c((void *)s, hdr->size);
+ if (crc != hdr->crc)
+ return 1;
+
+ return 0;
+}
+
+int verify_load_state(struct thread_data *td, const char *prefix)
+{
+ struct thread_io_list *s = NULL;
+ struct verify_state_hdr hdr;
+ uint64_t crc;
+ ssize_t ret;
+ int fd;
+
+ if (!td->o.verify_state)
+ return 0;
+
+ fd = open_state_file(td->o.name, prefix, td->thread_number - 1, 0);
+ if (fd == -1)
+ return 1;
+
+ ret = read(fd, &hdr, sizeof(hdr));
+ if (ret != sizeof(hdr)) {
+ if (ret < 0)
+ td_verror(td, errno, "read verify state hdr");
+ log_err("fio: failed reading verify state header\n");
+ goto err;
+ }
+
+ hdr.version = le64_to_cpu(hdr.version);
+ hdr.size = le64_to_cpu(hdr.size);
+ hdr.crc = le64_to_cpu(hdr.crc);
+
+ if (hdr.version != VSTATE_HDR_VERSION) {
+ log_err("fio: bad version in verify state header\n");
+ goto err;
+ }
+
+ s = malloc(hdr.size);
+ ret = read(fd, s, hdr.size);
+ if (ret != hdr.size) {
+ if (ret < 0)
+ td_verror(td, errno, "read verify state");
+ log_err("fio: failed reading verity state\n");
+ goto err;
+ }
+
+ crc = fio_crc32c((void *)s, hdr.size);
+ if (crc != hdr.crc) {
+ log_err("fio: verify state is corrupt\n");
+ goto err;
+ }
+
+ close(fd);
+
+ verify_convert_assign_state(td, s);
+ return 0;
+err:
+ if (s)
+ free(s);
+ close(fd);
+ return 1;
+}
+
+/*
+ * Use the loaded verify state to know when to stop doing verification
+ */
+int verify_state_should_stop(struct thread_data *td, struct io_u *io_u)
+{
+ struct thread_io_list *s = td->vstate;
+ int i;
+
+ if (!s)
+ return 0;
+
+ /*
+ * If we're not into the window of issues - depth yet, continue
+ */
+ if (td->io_blocks[DDIR_READ] < s->depth ||
+ s->numberio - td->io_blocks[DDIR_READ] > s->depth)
+ return 0;
+
+ /*
+ * We're in the window of having to check if this io was
+ * completed or not. If the IO was seen as completed, then
+ * lets verify it.
+ */
+ for (i = 0; i < s->no_comps; i++)
+ if (io_u->offset == s->offsets[i])
+ return 0;
+
+ /*
+ * Not found, we have to stop
+ */
+ return 1;
+}
projects / fio.git / blobdiff