static void populate_hdr(struct thread_data *td, struct io_u *io_u,
struct verify_header *hdr, unsigned int header_num,
unsigned int header_len);
-static void fill_hdr(struct verify_header *hdr, int verify_type, uint32_t len,
- uint64_t rand_seed);
-static void __fill_hdr(struct verify_header *hdr, int verify_type, uint32_t len,
- uint64_t rand_seed);
+static void fill_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len, uint64_t rand_seed);
+static void __fill_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len, uint64_t rand_seed);
void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len)
{
switch (verify_type) {
case VERIFY_NONE:
+ case VERIFY_HDR_ONLY:
case VERIFY_NULL:
case VERIFY_PATTERN:
len = 0;
case VERIFY_XXHASH:
len = sizeof(struct vhdr_xxhash);
break;
- case VERIFY_META:
- len = sizeof(struct vhdr_meta);
- break;
case VERIFY_SHA1:
len = sizeof(struct vhdr_sha1);
break;
struct verify_header shdr;
if (td->o.verify == VERIFY_PATTERN_NO_HDR) {
- __fill_hdr(&shdr, td->o.verify, vc->io_u->buflen, 0);
+ __fill_hdr(td, vc->io_u, &shdr, 0, vc->io_u->buflen, 0);
hdr = &shdr;
}
return EILSEQ;
}
-static int verify_io_u_meta(struct verify_header *hdr, struct vcont *vc)
-{
- struct thread_data *td = vc->td;
- struct vhdr_meta *vh = hdr_priv(hdr);
- struct io_u *io_u = vc->io_u;
- int ret = EILSEQ;
-
- dprint(FD_VERIFY, "meta verify io_u %p, len %u\n", io_u, hdr->len);
-
- if (vh->offset == io_u->offset + vc->hdr_num * td->o.verify_interval)
- ret = 0;
-
- if (td->o.verify_pattern_bytes)
- ret |= verify_io_u_pattern(hdr, vc);
-
- /*
- * For read-only workloads, the program cannot be certain of the
- * last numberio written to a block. Checking of numberio will be
- * done only for workloads that write data. For verify_only,
- * numberio will be checked in the last iteration when the correct
- * 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)) &&
- !td->o.time_based)
- if (!td->o.verify_only || td->o.loops == 0)
- if (vh->numberio != io_u->numberio)
- ret = EILSEQ;
-
- if (!ret)
- return 0;
-
- vc->name = "meta";
- log_verify_failure(hdr, vc);
- return ret;
-}
-
static int verify_io_u_xxhash(struct verify_header *hdr, struct vcont *vc)
{
void *p = io_u_verify_off(hdr, vc);
return 0;
}
+/*
+ * Thanks Rusty, for spending the time so I don't have to.
+ *
+ * http://rusty.ozlabs.org/?p=560
+ */
+static int mem_is_zero(const void *data, size_t length)
+{
+ const unsigned char *p = data;
+ size_t len;
+
+ /* Check first 16 bytes manually */
+ for (len = 0; len < 16; len++) {
+ if (!length)
+ return 1;
+ if (*p)
+ return 0;
+ p++;
+ length--;
+ }
+
+ /* Now we know that's zero, memcmp with self. */
+ return memcmp(data, p, length) == 0;
+}
+
+static int mem_is_zero_slow(const void *data, size_t length, size_t *offset)
+{
+ const unsigned char *p = data;
+
+ *offset = 0;
+ while (length) {
+ if (*p)
+ break;
+ (*offset)++;
+ length--;
+ p++;
+ }
+
+ return !length;
+}
+
static int verify_trimmed_io_u(struct thread_data *td, struct io_u *io_u)
{
- static char zero_buf[1024];
- unsigned int this_len, len;
- int ret = 0;
- void *p;
+ size_t offset;
if (!td->o.trim_zero)
return 0;
- len = io_u->buflen;
- p = io_u->buf;
- do {
- this_len = sizeof(zero_buf);
- if (this_len > len)
- this_len = len;
- if (memcmp(p, zero_buf, this_len)) {
- ret = EILSEQ;
- break;
- }
- len -= this_len;
- p += this_len;
- } while (len);
-
- if (!ret)
+ if (mem_is_zero(io_u->buf, io_u->buflen))
return 0;
+ mem_is_zero_slow(io_u->buf, io_u->buflen, &offset);
+
log_err("trim: verify failed at file %s offset %llu, length %lu"
", block offset %lu\n",
io_u->file->file_name, io_u->offset, io_u->buflen,
- (unsigned long) (p - io_u->buf));
- return ret;
+ (unsigned long) offset);
+ return EILSEQ;
}
-static int verify_header(struct io_u *io_u, struct verify_header *hdr,
- unsigned int hdr_num, unsigned int hdr_len)
+static int verify_header(struct io_u *io_u, struct thread_data *td,
+ struct verify_header *hdr, unsigned int hdr_num,
+ unsigned int hdr_len)
{
void *p = hdr;
uint32_t crc;
hdr->rand_seed, io_u->rand_seed);
goto err;
}
+ if (hdr->offset != io_u->offset + hdr_num * td->o.verify_interval) {
+ log_err("verify: bad header offset %"PRIu64
+ ", wanted %llu",
+ hdr->offset, io_u->offset);
+ goto err;
+ }
+
+ /*
+ * For read-only workloads, the program cannot be certain of the
+ * last numberio written to a block. Checking of numberio will be
+ * done only for workloads that write data. For verify_only,
+ * numberio will be checked in the last iteration when the correct
+ * 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)) &&
+ !td->o.time_based)
+ if (!td->o.verify_only || td->o.loops == 0)
+ if (hdr->numberio != io_u->numberio) {
+ log_err("verify: bad header numberio %"PRIu16
+ ", wanted %"PRIu16,
+ hdr->numberio, io_u->numberio);
+ goto err;
+ }
crc = fio_crc32c(p, offsetof(struct verify_header, crc32));
if (crc != hdr->crc32) {
io_u->rand_seed = hdr->rand_seed;
if (td->o.verify != VERIFY_PATTERN_NO_HDR) {
- ret = verify_header(io_u, hdr, hdr_num, hdr_inc);
+ ret = verify_header(io_u, td, hdr, hdr_num, hdr_inc);
if (ret)
return ret;
}
verify_type = hdr->verify_type;
switch (verify_type) {
+ case VERIFY_HDR_ONLY:
+ /* Header is always verified, check if pattern is left
+ * for verification. */
+ if (td->o.verify_pattern_bytes)
+ ret = verify_io_u_pattern(hdr, &vc);
+ break;
case VERIFY_MD5:
ret = verify_io_u_md5(hdr, &vc);
break;
case VERIFY_XXHASH:
ret = verify_io_u_xxhash(hdr, &vc);
break;
- case VERIFY_META:
- ret = verify_io_u_meta(hdr, &vc);
- break;
case VERIFY_SHA1:
ret = verify_io_u_sha1(hdr, &vc);
break;
return ret;
}
-static void fill_meta(struct verify_header *hdr, struct thread_data *td,
- struct io_u *io_u, unsigned int header_num)
-{
- struct vhdr_meta *vh = hdr_priv(hdr);
-
- vh->thread = td->thread_number;
-
- vh->time_sec = io_u->start_time.tv_sec;
- vh->time_usec = io_u->start_time.tv_usec;
-
- vh->numberio = io_u->numberio;
-
- vh->offset = io_u->offset + header_num * td->o.verify_interval;
-}
-
static void fill_xxhash(struct verify_header *hdr, void *p, unsigned int len)
{
struct vhdr_xxhash *vh = hdr_priv(hdr);
fio_md5_final(&md5_ctx);
}
-static void __fill_hdr(struct verify_header *hdr, int verify_type,
- uint32_t len, uint64_t rand_seed)
+static void __fill_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len, uint64_t rand_seed)
{
void *p = hdr;
hdr->magic = FIO_HDR_MAGIC;
- hdr->verify_type = verify_type;
- hdr->len = len;
+ hdr->verify_type = td->o.verify;
+ hdr->len = header_len;
hdr->rand_seed = rand_seed;
+ hdr->offset = io_u->offset + header_num * td->o.verify_interval;
+ hdr->time_sec = io_u->start_time.tv_sec;
+ hdr->time_usec = io_u->start_time.tv_usec;
+ hdr->thread = td->thread_number;
+ hdr->numberio = io_u->numberio;
hdr->crc32 = fio_crc32c(p, offsetof(struct verify_header, crc32));
}
-static void fill_hdr(struct verify_header *hdr, int verify_type, uint32_t len,
- uint64_t rand_seed)
+static void fill_hdr(struct thread_data *td, struct io_u *io_u,
+ struct verify_header *hdr, unsigned int header_num,
+ unsigned int header_len, uint64_t rand_seed)
{
- if (verify_type != VERIFY_PATTERN_NO_HDR)
- __fill_hdr(hdr, verify_type, len, rand_seed);
+
+ if (td->o.verify != VERIFY_PATTERN_NO_HDR)
+ __fill_hdr(td, io_u, hdr, header_num, header_len, rand_seed);
}
static void populate_hdr(struct thread_data *td, struct io_u *io_u,
p = (void *) hdr;
- fill_hdr(hdr, td->o.verify, header_len, io_u->rand_seed);
+ fill_hdr(td, io_u, hdr, header_num, header_len, io_u->rand_seed);
data_len = header_len - hdr_size(td, hdr);
io_u, hdr->len);
fill_xxhash(hdr, data, data_len);
break;
- case VERIFY_META:
- dprint(FD_VERIFY, "fill meta io_u %p, len %u\n",
- io_u, hdr->len);
- fill_meta(hdr, td, io_u, header_num);
- break;
case VERIFY_SHA1:
dprint(FD_VERIFY, "fill sha1 io_u %p, len %u\n",
io_u, hdr->len);
fill_sha1(hdr, data, data_len);
break;
+ case VERIFY_HDR_ONLY:
case VERIFY_PATTERN:
case VERIFY_PATTERN_NO_HDR:
/* nothing to do here */
projects / fio.git / blobdiff