void fill_verify_pattern(struct thread_data *td, void *p, unsigned int len,
struct io_u *io_u, unsigned long seed, int use_seed)
{
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_percentage(seed, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
else {
struct frand_state *fs = &td->verify_state;
io_u->rand_seed = fill_random_buf_percentage(fs, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
}
return;
}
if (io_u->buf_filled_len >= len) {
dprint(FD_VERIFY, "using already filled verify pattern b=%d len=%u\n",
o->verify_pattern_bytes, len);
return;
}
fill_pattern(p, len, o->verify_pattern, o->verify_pattern_bytes);
io_u->buf_filled_len = len;
}
unsigned long fill_random_buf_percentage(struct frand_state *fs, void *buf,
unsigned int percentage,
unsigned int segment, unsigned int len,
char *pattern, unsigned int pbytes)
{
unsigned long r = __rand(fs);
if (sizeof(int) != sizeof(long *))
r *= (unsigned long) __rand(fs);
__fill_random_buf_percentage(r, buf, percentage, segment, len,
pattern, pbytes);
return r;
}
void __fill_buffer(struct thread_options *o, unsigned long seed, void *p,
unsigned int len)
{
__fill_random_buf_percentage(seed, p, o->compress_percentage, len, len, o->buffer_pattern, o->buffer_pattern_bytes);
}
