#include "trim.h"
#include "lib/rand.h"
#include "lib/hweight.h"
+#include "lib/pattern.h"
#include "crc/md5.h"
#include "crc/crc64.h"
#include "crc/sha512.h"
#include "crc/sha1.h"
#include "crc/xxhash.h"
+#include "crc/sha3.h"
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 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_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;
- }
- }
+ (void)cpy_pattern(td->o.buffer_pattern, td->o.buffer_pattern_bytes, p, len);
}
-void fill_buffer_pattern(struct thread_data *td, void *p, unsigned int len)
+static 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);
+}
+
+static 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) {
+ /* Skip if we were here and we do not need to patch pattern
+ * with format */
+ if (!td->o.verify_fmt_sz && 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);
-
+ (void)paste_format(td->o.verify_pattern, td->o.verify_pattern_bytes,
+ td->o.verify_fmt, td->o.verify_fmt_sz,
+ p, len, io_u);
io_u->buf_filled_len = len;
}
{
unsigned int hdr_inc;
+ /*
+ * If we use bs_unaligned, buflen can be larger than the verify
+ * interval (which just defaults to the smallest blocksize possible).
+ */
hdr_inc = io_u->buflen;
- if (td->o.verify_interval && td->o.verify_interval <= io_u->buflen)
+ if (td->o.verify_interval && td->o.verify_interval <= io_u->buflen &&
+ !td->o.bs_unaligned)
hdr_inc = td->o.verify_interval;
return hdr_inc;
switch (verify_type) {
case VERIFY_NONE:
+ case VERIFY_HDR_ONLY:
case VERIFY_NULL:
+ case VERIFY_PATTERN:
len = 0;
break;
case VERIFY_MD5:
case VERIFY_SHA512:
len = sizeof(struct vhdr_sha512);
break;
+ case VERIFY_SHA3_224:
+ len = sizeof(struct vhdr_sha3_224);
+ break;
+ case VERIFY_SHA3_256:
+ len = sizeof(struct vhdr_sha3_256);
+ break;
+ case VERIFY_SHA3_384:
+ len = sizeof(struct vhdr_sha3_384);
+ break;
+ case VERIFY_SHA3_512:
+ len = sizeof(struct vhdr_sha3_512);
+ break;
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;
- case VERIFY_PATTERN:
- len = 0;
- break;
+ case VERIFY_PATTERN_NO_HDR:
+ return 0;
default:
log_err("fio: unknown verify header!\n");
assert(0);
return len + sizeof(struct verify_header);
}
-static inline unsigned int hdr_size(struct verify_header *hdr)
+static inline unsigned int hdr_size(struct thread_data *td,
+ struct verify_header *hdr)
{
+ if (td->o.verify == VERIFY_PATTERN_NO_HDR)
+ return 0;
+
return __hdr_size(hdr->verify_type);
}
};
#define DUMP_BUF_SZ 255
-static int dump_buf_warned;
static void dump_buf(char *buf, unsigned int len, unsigned long long offset,
const char *type, struct fio_file *f)
ptr = strdup(f->file_name);
- fname[DUMP_BUF_SZ - 1] = '\0';
- strncpy(fname, basename(ptr), DUMP_BUF_SZ - 1);
+ memset(fname, 0, sizeof(fname));
+ if (aux_path)
+ sprintf(fname, "%s%c", aux_path, FIO_OS_PATH_SEPARATOR);
+
+ strncpy(fname + strlen(fname), basename(ptr), buf_left - 1);
buf_left -= strlen(fname);
if (buf_left <= 0) {
- if (!dump_buf_warned) {
+ if (!fio_did_warn(FIO_WARN_VERIFY_BUF))
log_err("fio: verify failure dump buffer too small\n");
- dump_buf_warned = 1;
- }
free(ptr);
return;
}
fd = open(fname, O_CREAT | O_TRUNC | O_WRONLY, 0644);
if (fd < 0) {
perror("open verify buf file");
+ free(ptr);
return;
}
* Dump the contents of the read block and re-generate the correct data
* and dump that too.
*/
-static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
+static void __dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
{
struct thread_data *td = vc->td;
struct io_u *io_u = vc->io_u;
free(buf);
}
+static void dump_verify_buffers(struct verify_header *hdr, struct vcont *vc)
+{
+ struct thread_data *td = vc->td;
+ struct verify_header shdr;
+
+ if (td->o.verify == VERIFY_PATTERN_NO_HDR) {
+ __fill_hdr(td, vc->io_u, &shdr, 0, vc->io_u->buflen, 0);
+ hdr = &shdr;
+ }
+
+ __dump_verify_buffers(hdr, vc);
+}
+
static void log_verify_failure(struct verify_header *hdr, struct vcont *vc)
{
unsigned long long offset;
*/
static inline void *io_u_verify_off(struct verify_header *hdr, struct vcont *vc)
{
- return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(hdr);
+ return vc->io_u->buf + vc->hdr_num * hdr->len + hdr_size(vc->td, hdr);
}
static int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc)
struct io_u *io_u = vc->io_u;
char *buf, *pattern;
unsigned int header_size = __hdr_size(td->o.verify);
- unsigned int len, mod, i, size, pattern_size;
+ unsigned int len, mod, i, pattern_size;
+ int rc;
pattern = td->o.verify_pattern;
pattern_size = td->o.verify_pattern_bytes;
- if (pattern_size <= 1)
- pattern_size = MAX_PATTERN_SIZE;
- buf = (void *) hdr + header_size;
+ assert(pattern_size != 0);
+
+ (void)paste_format_inplace(pattern, pattern_size,
+ td->o.verify_fmt, td->o.verify_fmt_sz, io_u);
+
+ buf = (char *) hdr + header_size;
len = get_hdr_inc(td, io_u) - header_size;
- mod = header_size % pattern_size;
-
- for (i = 0; i < len; i += size) {
- size = pattern_size - mod;
- if (size > (len - i))
- size = len - i;
- if (memcmp(buf + i, pattern + mod, size))
- /* Let the slow compare find the first mismatch byte. */
- break;
- mod = 0;
- }
+ mod = (get_hdr_inc(td, io_u) * vc->hdr_num + header_size) % pattern_size;
- for (; i < len; i++) {
+ rc = cmp_pattern(pattern, pattern_size, mod, buf, len);
+ if (!rc)
+ return 0;
+
+ /* Slow path, compare each byte */
+ for (i = 0; i < len; i++) {
if (buf[i] != pattern[mod]) {
unsigned int bits;
bits = hweight8(buf[i] ^ pattern[mod]);
- log_err("fio: got pattern %x, wanted %x. Bad bits %d\n",
- buf[i], pattern[mod], bits);
+ log_err("fio: got pattern '%02x', wanted '%02x'. Bad bits %d\n",
+ (unsigned char)buf[i],
+ (unsigned char)pattern[mod],
+ bits);
log_err("fio: bad pattern block offset %u\n", i);
- dump_verify_buffers(hdr, vc);
+ vc->name = "pattern";
+ log_verify_failure(hdr, vc);
return EILSEQ;
}
mod++;
mod = 0;
}
- return 0;
-}
-
-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))
- 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;
+ /* Unreachable line */
+ assert(0);
+ return EILSEQ;
}
static int verify_io_u_xxhash(struct verify_header *hdr, struct vcont *vc)
dprint(FD_VERIFY, "xxhash verify io_u %p, len %u\n", vc->io_u, hdr->len);
state = XXH32_init(1);
- XXH32_update(state, p, hdr->len - hdr_size(hdr));
+ XXH32_update(state, p, hdr->len - hdr_size(vc->td, hdr));
hash = XXH32_digest(state);
if (vh->hash == hash)
return EILSEQ;
}
+static int verify_io_u_sha3(struct verify_header *hdr, struct vcont *vc,
+ struct fio_sha3_ctx *sha3_ctx, uint8_t *sha,
+ unsigned int sha_size, const char *name)
+{
+ void *p = io_u_verify_off(hdr, vc);
+
+ dprint(FD_VERIFY, "%s verify io_u %p, len %u\n", name, vc->io_u, hdr->len);
+
+ fio_sha3_update(sha3_ctx, p, hdr->len - hdr_size(vc->td, hdr));
+ fio_sha3_final(sha3_ctx);
+
+ if (!memcmp(sha, sha3_ctx->sha, sha_size))
+ return 0;
+
+ vc->name = name;
+ vc->good_crc = sha;
+ vc->bad_crc = sha3_ctx->sha;
+ vc->crc_len = sha_size;
+ log_verify_failure(hdr, vc);
+ return EILSEQ;
+}
+
+static int verify_io_u_sha3_224(struct verify_header *hdr, struct vcont *vc)
+{
+ struct vhdr_sha3_224 *vh = hdr_priv(hdr);
+ uint8_t sha[SHA3_224_DIGEST_SIZE];
+ struct fio_sha3_ctx sha3_ctx = {
+ .sha = sha,
+ };
+
+ fio_sha3_224_init(&sha3_ctx);
+
+ return verify_io_u_sha3(hdr, vc, &sha3_ctx, vh->sha,
+ SHA3_224_DIGEST_SIZE, "sha3-224");
+}
+
+static int verify_io_u_sha3_256(struct verify_header *hdr, struct vcont *vc)
+{
+ struct vhdr_sha3_256 *vh = hdr_priv(hdr);
+ uint8_t sha[SHA3_256_DIGEST_SIZE];
+ struct fio_sha3_ctx sha3_ctx = {
+ .sha = sha,
+ };
+
+ fio_sha3_256_init(&sha3_ctx);
+
+ return verify_io_u_sha3(hdr, vc, &sha3_ctx, vh->sha,
+ SHA3_256_DIGEST_SIZE, "sha3-256");
+}
+
+static int verify_io_u_sha3_384(struct verify_header *hdr, struct vcont *vc)
+{
+ struct vhdr_sha3_384 *vh = hdr_priv(hdr);
+ uint8_t sha[SHA3_384_DIGEST_SIZE];
+ struct fio_sha3_ctx sha3_ctx = {
+ .sha = sha,
+ };
+
+ fio_sha3_384_init(&sha3_ctx);
+
+ return verify_io_u_sha3(hdr, vc, &sha3_ctx, vh->sha,
+ SHA3_384_DIGEST_SIZE, "sha3-384");
+}
+
+static int verify_io_u_sha3_512(struct verify_header *hdr, struct vcont *vc)
+{
+ struct vhdr_sha3_512 *vh = hdr_priv(hdr);
+ uint8_t sha[SHA3_512_DIGEST_SIZE];
+ struct fio_sha3_ctx sha3_ctx = {
+ .sha = sha,
+ };
+
+ fio_sha3_512_init(&sha3_ctx);
+
+ return verify_io_u_sha3(hdr, vc, &sha3_ctx, vh->sha,
+ SHA3_512_DIGEST_SIZE, "sha3-512");
+}
+
static int verify_io_u_sha512(struct verify_header *hdr, struct vcont *vc)
{
void *p = io_u_verify_off(hdr, vc);
dprint(FD_VERIFY, "sha512 verify io_u %p, len %u\n", vc->io_u, hdr->len);
fio_sha512_init(&sha512_ctx);
- fio_sha512_update(&sha512_ctx, p, hdr->len - hdr_size(hdr));
+ fio_sha512_update(&sha512_ctx, p, hdr->len - hdr_size(vc->td, hdr));
if (!memcmp(vh->sha512, sha512_ctx.buf, sizeof(sha512)))
return 0;
dprint(FD_VERIFY, "sha256 verify io_u %p, len %u\n", vc->io_u, hdr->len);
fio_sha256_init(&sha256_ctx);
- fio_sha256_update(&sha256_ctx, p, hdr->len - hdr_size(hdr));
+ fio_sha256_update(&sha256_ctx, p, hdr->len - hdr_size(vc->td, hdr));
+ fio_sha256_final(&sha256_ctx);
if (!memcmp(vh->sha256, sha256_ctx.buf, sizeof(sha256)))
return 0;
dprint(FD_VERIFY, "sha1 verify io_u %p, len %u\n", vc->io_u, hdr->len);
fio_sha1_init(&sha1_ctx);
- fio_sha1_update(&sha1_ctx, p, hdr->len - hdr_size(hdr));
+ fio_sha1_update(&sha1_ctx, p, hdr->len - hdr_size(vc->td, hdr));
+ fio_sha1_final(&sha1_ctx);
if (!memcmp(vh->sha1, sha1_ctx.H, sizeof(sha1)))
return 0;
dprint(FD_VERIFY, "crc7 verify io_u %p, len %u\n", vc->io_u, hdr->len);
- c = fio_crc7(p, hdr->len - hdr_size(hdr));
+ c = fio_crc7(p, hdr->len - hdr_size(vc->td, hdr));
if (c == vh->crc7)
return 0;
dprint(FD_VERIFY, "crc16 verify io_u %p, len %u\n", vc->io_u, hdr->len);
- c = fio_crc16(p, hdr->len - hdr_size(hdr));
+ c = fio_crc16(p, hdr->len - hdr_size(vc->td, hdr));
if (c == vh->crc16)
return 0;
dprint(FD_VERIFY, "crc64 verify io_u %p, len %u\n", vc->io_u, hdr->len);
- c = fio_crc64(p, hdr->len - hdr_size(hdr));
+ c = fio_crc64(p, hdr->len - hdr_size(vc->td, hdr));
if (c == vh->crc64)
return 0;
dprint(FD_VERIFY, "crc32 verify io_u %p, len %u\n", vc->io_u, hdr->len);
- c = fio_crc32(p, hdr->len - hdr_size(hdr));
+ c = fio_crc32(p, hdr->len - hdr_size(vc->td, hdr));
if (c == vh->crc32)
return 0;
dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", vc->io_u, hdr->len);
- c = fio_crc32c(p, hdr->len - hdr_size(hdr));
+ c = fio_crc32c(p, hdr->len - hdr_size(vc->td, hdr));
if (c == vh->crc32)
return 0;
dprint(FD_VERIFY, "md5 verify io_u %p, len %u\n", vc->io_u, hdr->len);
fio_md5_init(&md5_ctx);
- fio_md5_update(&md5_ctx, p, hdr->len - hdr_size(hdr));
+ fio_md5_update(&md5_ctx, p, hdr->len - hdr_size(vc->td, hdr));
+ fio_md5_final(&md5_ctx);
if (!memcmp(vh->md5_digest, md5_ctx.hash, sizeof(hash)))
return 0;
/*
* Push IO verification to a separate thread
*/
-int verify_io_u_async(struct thread_data *td, struct io_u *io_u)
+int verify_io_u_async(struct thread_data *td, struct io_u **io_u_ptr)
{
- if (io_u->file)
- put_file_log(td, io_u->file);
+ struct io_u *io_u = *io_u_ptr;
pthread_mutex_lock(&td->io_u_lock);
+ if (io_u->file)
+ put_file_log(td, io_u->file);
+
if (io_u->flags & IO_U_F_IN_CUR_DEPTH) {
td->cur_depth--;
- io_u->flags &= ~IO_U_F_IN_CUR_DEPTH;
+ io_u_clear(td, io_u, IO_U_F_IN_CUR_DEPTH);
}
flist_add_tail(&io_u->verify_list, &td->verify_list);
- io_u->flags |= IO_U_F_FREE_DEF;
+ *io_u_ptr = NULL;
pthread_mutex_unlock(&td->io_u_lock);
pthread_cond_signal(&td->verify_cond);
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)
+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;
- if (hdr->magic != FIO_HDR_MAGIC)
- return 1;
- if (hdr->len > io_u->buflen)
- return 2;
- if (hdr->rand_seed != io_u->rand_seed)
- return 3;
+ if (hdr->magic != FIO_HDR_MAGIC) {
+ log_err("verify: bad magic header %x, wanted %x",
+ hdr->magic, FIO_HDR_MAGIC);
+ goto err;
+ }
+ if (hdr->len != hdr_len) {
+ log_err("verify: bad header length %u, wanted %u",
+ hdr->len, hdr_len);
+ goto err;
+ }
+ if (hdr->rand_seed != io_u->rand_seed) {
+ log_err("verify: bad header rand_seed %"PRIu64
+ ", wanted %"PRIu64,
+ 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_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)
- return 0;
- log_err("fio: verify header crc %x, calculated %x\n", hdr->crc32, crc);
- return 4;
+ if (crc != hdr->crc32) {
+ log_err("verify: bad header crc %x, calculated %x",
+ hdr->crc32, crc);
+ goto err;
+ }
+ return 0;
+
+err:
+ log_err(" at file %s offset %llu, length %u\n",
+ io_u->file->file_name,
+ io_u->offset + hdr_num * hdr_len, hdr_len);
+
+ if (td->o.verify_dump)
+ dump_buf(p, hdr_len, io_u->offset + hdr_num * hdr_len,
+ "hdr_fail", io_u->file);
+
+ return EILSEQ;
}
-int verify_io_u(struct thread_data *td, struct io_u *io_u)
+int verify_io_u(struct thread_data *td, struct io_u **io_u_ptr)
{
struct verify_header *hdr;
+ struct io_u *io_u = *io_u_ptr;
unsigned int header_size, hdr_inc, hdr_num = 0;
void *p;
int ret;
if (td->o.verify == VERIFY_NULL || io_u->ddir != DDIR_READ)
return 0;
+ /*
+ * If the IO engine is faking IO (like null), then just pretend
+ * we verified everything.
+ */
+ if (td_ioengine_flagged(td, FIO_FAKEIO))
+ return 0;
+
if (io_u->flags & IO_U_F_TRIMMED) {
ret = verify_trimmed_io_u(td, io_u);
goto done;
if (td->o.verifysort || (td->flags & TD_F_VER_BACKLOG))
io_u->rand_seed = hdr->rand_seed;
- ret = verify_header(io_u, hdr);
- switch (ret) {
- case 0:
- break;
- case 1:
- log_err("verify: bad magic header %x, wanted %x at "
- "file %s offset %llu, length %u\n",
- hdr->magic, FIO_HDR_MAGIC,
- io_u->file->file_name,
- io_u->offset + hdr_num * hdr->len, hdr->len);
- return EILSEQ;
- break;
- case 2:
- log_err("fio: verify header exceeds buffer length (%u "
- "> %lu)\n", hdr->len, io_u->buflen);
- return EILSEQ;
- break;
- case 3:
- log_err("verify: bad header rand_seed %"PRIu64
- ", wanted %"PRIu64" at file %s offset %llu, "
- "length %u\n",
- hdr->rand_seed, io_u->rand_seed,
- io_u->file->file_name,
- io_u->offset + hdr_num * hdr->len, hdr->len);
- return EILSEQ;
- break;
- case 4:
- return EILSEQ;
- break;
- default:
- log_err("verify: unknown header error at file %s "
- "offset %llu, length %u\n",
- io_u->file->file_name,
- io_u->offset + hdr_num * hdr->len, hdr->len);
- return EILSEQ;
+ if (td->o.verify != VERIFY_PATTERN_NO_HDR) {
+ ret = verify_header(io_u, td, hdr, hdr_num, hdr_inc);
+ if (ret)
+ return ret;
}
if (td->o.verify != VERIFY_NONE)
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_SHA512:
ret = verify_io_u_sha512(hdr, &vc);
break;
+ case VERIFY_SHA3_224:
+ ret = verify_io_u_sha3_224(hdr, &vc);
+ break;
+ case VERIFY_SHA3_256:
+ ret = verify_io_u_sha3_256(hdr, &vc);
+ break;
+ case VERIFY_SHA3_384:
+ ret = verify_io_u_sha3_384(hdr, &vc);
+ break;
+ case VERIFY_SHA3_512:
+ ret = verify_io_u_sha3_512(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;
case VERIFY_PATTERN:
+ case VERIFY_PATTERN_NO_HDR:
ret = verify_io_u_pattern(hdr, &vc);
break;
default:
done:
if (ret && td->o.verify_fatal)
- td->terminate = 1;
+ fio_mark_td_terminate(td);
return ret;
}
-static void fill_meta(struct verify_header *hdr, struct thread_data *td,
- struct io_u *io_u, unsigned int header_num)
+static void fill_xxhash(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_xxhash *vh = hdr_priv(hdr);
+ void *state;
+
+ state = XXH32_init(1);
+ XXH32_update(state, p, len);
+ vh->hash = XXH32_digest(state);
+}
+
+static void fill_sha3(struct fio_sha3_ctx *sha3_ctx, void *p, unsigned int len)
{
- struct vhdr_meta *vh = hdr_priv(hdr);
+ fio_sha3_update(sha3_ctx, p, len);
+ fio_sha3_final(sha3_ctx);
+}
- vh->thread = td->thread_number;
+static void fill_sha3_224(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_sha3_224 *vh = hdr_priv(hdr);
+ struct fio_sha3_ctx sha3_ctx = {
+ .sha = vh->sha,
+ };
- vh->time_sec = io_u->start_time.tv_sec;
- vh->time_usec = io_u->start_time.tv_usec;
+ fio_sha3_224_init(&sha3_ctx);
+ fill_sha3(&sha3_ctx, p, len);
+}
- vh->numberio = io_u->numberio;
+static void fill_sha3_256(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_sha3_256 *vh = hdr_priv(hdr);
+ struct fio_sha3_ctx sha3_ctx = {
+ .sha = vh->sha,
+ };
- vh->offset = io_u->offset + header_num * td->o.verify_interval;
+ fio_sha3_256_init(&sha3_ctx);
+ fill_sha3(&sha3_ctx, p, len);
}
-static void fill_xxhash(struct verify_header *hdr, void *p, unsigned int len)
+static void fill_sha3_384(struct verify_header *hdr, void *p, unsigned int len)
{
- struct vhdr_xxhash *vh = hdr_priv(hdr);
- void *state;
+ struct vhdr_sha3_384 *vh = hdr_priv(hdr);
+ struct fio_sha3_ctx sha3_ctx = {
+ .sha = vh->sha,
+ };
- state = XXH32_init(1);
- XXH32_update(state, p, len);
- vh->hash = XXH32_digest(state);
+ fio_sha3_384_init(&sha3_ctx);
+ fill_sha3(&sha3_ctx, p, len);
+}
+
+static void fill_sha3_512(struct verify_header *hdr, void *p, unsigned int len)
+{
+ struct vhdr_sha3_512 *vh = hdr_priv(hdr);
+ struct fio_sha3_ctx sha3_ctx = {
+ .sha = vh->sha,
+ };
+
+ fio_sha3_512_init(&sha3_ctx);
+ fill_sha3(&sha3_ctx, p, len);
}
static void fill_sha512(struct verify_header *hdr, void *p, unsigned int len)
fio_sha256_init(&sha256_ctx);
fio_sha256_update(&sha256_ctx, p, len);
+ fio_sha256_final(&sha256_ctx);
}
static void fill_sha1(struct verify_header *hdr, void *p, unsigned int len)
fio_sha1_init(&sha1_ctx);
fio_sha1_update(&sha1_ctx, p, len);
+ fio_sha1_final(&sha1_ctx);
}
static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
fio_md5_init(&md5_ctx);
fio_md5_update(&md5_ctx, p, len);
+ fio_md5_final(&md5_ctx);
+}
+
+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 = 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_nsec = io_u->start_time.tv_nsec;
+ 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 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 (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,
unsigned int header_len)
{
unsigned int data_len;
- void *data, *p;
+ void *data;
+ char *p;
- p = (void *) hdr;
+ p = (char *) hdr;
- hdr->magic = FIO_HDR_MAGIC;
- hdr->verify_type = td->o.verify;
- hdr->len = header_len;
- hdr->rand_seed = io_u->rand_seed;
- hdr->crc32 = fio_crc32c(p, offsetof(struct verify_header, crc32));
+ fill_hdr(td, io_u, hdr, header_num, header_len, io_u->rand_seed);
- data_len = header_len - hdr_size(hdr);
+ data_len = header_len - hdr_size(td, hdr);
- data = p + hdr_size(hdr);
+ data = p + hdr_size(td, hdr);
switch (td->o.verify) {
case VERIFY_MD5:
dprint(FD_VERIFY, "fill md5 io_u %p, len %u\n",
io_u, hdr->len);
fill_sha512(hdr, data, data_len);
break;
+ case VERIFY_SHA3_224:
+ dprint(FD_VERIFY, "fill sha3-224 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_sha3_224(hdr, data, data_len);
+ break;
+ case VERIFY_SHA3_256:
+ dprint(FD_VERIFY, "fill sha3-256 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_sha3_256(hdr, data, data_len);
+ break;
+ case VERIFY_SHA3_384:
+ dprint(FD_VERIFY, "fill sha3-384 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_sha3_384(hdr, data, data_len);
+ break;
+ case VERIFY_SHA3_512:
+ dprint(FD_VERIFY, "fill sha3-512 io_u %p, len %u\n",
+ io_u, hdr->len);
+ fill_sha3_512(hdr, data, data_len);
+ break;
case VERIFY_XXHASH:
dprint(FD_VERIFY, "fill xxhash io_u %p, len %u\n",
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 */
break;
default:
log_err("fio: bad verify type: %d\n", td->o.verify);
assert(0);
}
- if (td->o.verify_offset)
- memswp(p, p + td->o.verify_offset, hdr_size(hdr));
+
+ if (td->o.verify_offset && hdr_size(td, hdr))
+ memswp(p, p + td->o.verify_offset, hdr_size(td, hdr));
}
/*
assert(ipo->flags & IP_F_ONRB);
ipo->flags &= ~IP_F_ONRB;
} else if (!flist_empty(&td->io_hist_list)) {
- ipo = flist_entry(td->io_hist_list.next, struct io_piece, list);
+ ipo = flist_first_entry(&td->io_hist_list, struct io_piece, list);
/*
* Ensure that the associated IO has completed
io_u->buflen = ipo->len;
io_u->numberio = ipo->numberio;
io_u->file = ipo->file;
- io_u->flags |= IO_U_F_VER_LIST;
+ io_u_set(td, io_u, IO_U_F_VER_LIST);
if (ipo->flags & IP_F_TRIMMED)
- io_u->flags |= IO_U_F_TRIMMED;
+ io_u_set(td, io_u, IO_U_F_TRIMMED);
if (!fio_file_open(io_u->file)) {
int r = td_io_open_file(td, io_u->file);
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;
}
{
if (td->o.verify == VERIFY_CRC32C_INTEL ||
td->o.verify == VERIFY_CRC32C) {
+ crc32c_arm64_probe();
crc32c_intel_probe();
}
}
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;
continue;
while (!flist_empty(&list)) {
- io_u = flist_entry(list.next, struct io_u, verify_list);
- flist_del(&io_u->verify_list);
+ io_u = flist_first_entry(&list, struct io_u, verify_list);
+ flist_del_init(&io_u->verify_list);
+
+ io_u_set(td, io_u, IO_U_F_NO_FILE_PUT);
+ ret = verify_io_u(td, &io_u);
- ret = verify_io_u(td, io_u);
put_io_u(td, io_u);
if (!ret)
continue;
if (ret) {
td_verror(td, ret, "async_verify");
if (td->o.verify_fatal)
- td->terminate = 1;
+ fio_mark_td_terminate(td);
}
done:
pthread_attr_t attr;
pthread_attr_init(&attr);
- pthread_attr_setstacksize(&attr, PTHREAD_STACK_MIN);
+ pthread_attr_setstacksize(&attr, 2 * PTHREAD_STACK_MIN);
td->verify_thread_exit = 0;
free(td->verify_threads);
td->verify_threads = NULL;
}
+
+int paste_blockoff(char *buf, unsigned int len, void *priv)
+{
+ struct io_u *io = priv;
+ unsigned long long off;
+
+ typecheck(typeof(off), io->offset);
+ off = cpu_to_le64((uint64_t)io->offset);
+ len = min(len, (unsigned int)sizeof(off));
+ memcpy(buf, &off, len);
+ return 0;
+}
+
+static int __fill_file_completions(struct thread_data *td,
+ struct thread_io_list *s,
+ struct fio_file *f, unsigned int *index)
+{
+ unsigned int comps;
+ int i, j;
+
+ if (!f->last_write_comp)
+ return 0;
+
+ if (td->io_blocks[DDIR_WRITE] < td->o.iodepth)
+ comps = td->io_blocks[DDIR_WRITE];
+ else
+ comps = td->o.iodepth;
+
+ j = f->last_write_idx - 1;
+ for (i = 0; i < comps; i++) {
+ if (j == -1)
+ j = td->o.iodepth - 1;
+ s->comps[*index].fileno = __cpu_to_le64(f->fileno);
+ s->comps[*index].offset = cpu_to_le64(f->last_write_comp[j]);
+ (*index)++;
+ j--;
+ }
+
+ return comps;
+}
+
+static int fill_file_completions(struct thread_data *td,
+ struct thread_io_list *s, unsigned int *index)
+{
+ struct fio_file *f;
+ unsigned int i;
+ int comps = 0;
+
+ for_each_file(td, f, i)
+ comps += __fill_file_completions(td, s, f, index);
+
+ return comps;
+}
+
+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 * td->o.nr_files);
+ nr++;
+ }
+
+ if (!nr)
+ return NULL;
+
+ *sz = sizeof(*rep);
+ *sz += nr * sizeof(struct thread_io_list);
+ *sz += depth * sizeof(struct file_comp);
+ rep = malloc(*sz);
+ memset(rep, 0, *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, index = 0;
+
+ if (save_mask != IO_LIST_ALL && (i + 1) != save_mask)
+ continue;
+
+ comps = fill_file_completions(td, s, &index);
+
+ s->no_comps = cpu_to_le64((uint64_t) comps);
+ s->depth = cpu_to_le64((uint64_t) td->o.iodepth);
+ s->nofiles = cpu_to_le64((uint64_t) td->o.nr_files);
+ s->numberio = cpu_to_le64((uint64_t) td->io_issues[DDIR_WRITE]);
+ s->index = cpu_to_le64((uint64_t) i);
+ if (td->random_state.use64) {
+ s->rand.state64.s[0] = cpu_to_le64(td->random_state.state64.s1);
+ s->rand.state64.s[1] = cpu_to_le64(td->random_state.state64.s2);
+ s->rand.state64.s[2] = cpu_to_le64(td->random_state.state64.s3);
+ s->rand.state64.s[3] = cpu_to_le64(td->random_state.state64.s4);
+ s->rand.state64.s[4] = cpu_to_le64(td->random_state.state64.s5);
+ s->rand.state64.s[5] = 0;
+ s->rand.use64 = cpu_to_le64((uint64_t)1);
+ } else {
+ s->rand.state32.s[0] = cpu_to_le32(td->random_state.state32.s1);
+ s->rand.state32.s[1] = cpu_to_le32(td->random_state.state32.s2);
+ s->rand.state32.s[2] = cpu_to_le32(td->random_state.state32.s3);
+ s->rand.state32.s[3] = 0;
+ s->rand.use64 = 0;
+ }
+ s->name[sizeof(s->name) - 1] = '\0';
+ strncpy((char *) s->name, td->o.name, sizeof(s->name) - 1);
+ 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[PATH_MAX];
+ 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");
+ log_err("fio: state file: %s (for_write=%d)\n", out, for_write);
+ 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(int mask)
+{
+ struct all_io_list *state;
+ size_t sz;
+
+ state = get_all_io_list(mask, &sz);
+ if (state) {
+ char prefix[PATH_MAX];
+
+ if (aux_path)
+ sprintf(prefix, "%s%clocal", aux_path, FIO_OS_PATH_SEPARATOR);
+ else
+ strcpy(prefix, "local");
+
+ __verify_save_state(state, prefix);
+ free(state);
+ }
+}
+
+void verify_free_state(struct thread_data *td)
+{
+ if (td->vstate)
+ free(td->vstate);
+}
+
+void verify_assign_state(struct thread_data *td, void *p)
+{
+ struct thread_io_list *s = p;
+ int i;
+
+ s->no_comps = le64_to_cpu(s->no_comps);
+ s->depth = le32_to_cpu(s->depth);
+ s->nofiles = le32_to_cpu(s->nofiles);
+ s->numberio = le64_to_cpu(s->numberio);
+ s->rand.use64 = le64_to_cpu(s->rand.use64);
+
+ if (s->rand.use64) {
+ for (i = 0; i < 6; i++)
+ s->rand.state64.s[i] = le64_to_cpu(s->rand.state64.s[i]);
+ } else {
+ for (i = 0; i < 4; i++)
+ s->rand.state32.s[i] = le32_to_cpu(s->rand.state32.s[i]);
+ }
+
+ for (i = 0; i < s->no_comps; i++) {
+ s->comps[i].fileno = le64_to_cpu(s->comps[i].fileno);
+ s->comps[i].offset = le64_to_cpu(s->comps[i].offset);
+ }
+
+ td->vstate = p;
+}
+
+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 verify_state_hdr hdr;
+ void *s = NULL;
+ 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: unsupported (%d) version in verify state header\n",
+ (unsigned int) hdr.version);
+ 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(s, hdr.size);
+ if (crc != hdr.crc) {
+ log_err("fio: verify state is corrupt\n");
+ goto err;
+ }
+
+ close(fd);
+
+ verify_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;
+ struct fio_file *f = io_u->file;
+ int i;
+
+ if (!s || !f)
+ return 0;
+
+ /*
+ * If we're not into the window of issues - depth yet, continue. If
+ * issue is shorter than depth, do check.
+ */
+ if ((td->io_blocks[DDIR_READ] < s->depth ||
+ s->numberio - td->io_blocks[DDIR_READ] > s->depth) &&
+ s->numberio > 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 (s->comps[i].fileno != f->fileno)
+ continue;
+ if (io_u->offset == s->comps[i].offset)
+ return 0;
+ }
+
+ /*
+ * Not found, we have to stop
+ */
+ return 1;
+}
projects / fio.git / blobdiff