void
cpu_dumpconf(void)
{
int nblks;
/*
* XXX include the final RAM page which is not included in physmem.
*/
if (dumpdev == NODEV)
return;
nblks = bdev_size(dumpdev);
if (nblks > 0) {
if (dumpsize > btoc(dbtob(nblks - dumplo)))
dumpsize = btoc(dbtob(nblks - dumplo));
else if (dumplo == 0)
dumplo = nblks - btodb(ctob(dumpsize));
}
/*
* Don't dump on the first PAGE_SIZE (why PAGE_SIZE?) in case the dump
* device includes a disk label.
*/
if (dumplo < btodb(PAGE_SIZE))
dumplo = btodb(PAGE_SIZE);
/*
* If we have nothing to dump (XXX implement crash dumps),
* make it clear for savecore that there is no dump.
*/
if (dumpsize <= 0)
dumplo = 0;
}
static int get_file_size(struct thread_data *td, struct fio_file *f)
{
int ret = 0;
if (fio_file_size_known(f))
return 0;
if (f->filetype == FIO_TYPE_FILE)
ret = file_size(td, f);
else if (f->filetype == FIO_TYPE_BD)
ret = bdev_size(td, f);
else if (f->filetype == FIO_TYPE_CHAR)
ret = char_size(td, f);
else
f->real_file_size = -1;
if (ret)
return ret;
if (f->file_offset > f->real_file_size) {
log_err("%s: offset extends end (%llu > %llu)\n", td->o.name,
(unsigned long long) f->file_offset,
(unsigned long long) f->real_file_size);
return 1;
}
fio_file_set_size_known(f);
return 0;
}
/*
* lookup device size in blocks,
* and return available space in bytes
*/
size_t
cpr_get_devsize(dev_t dev)
{
size_t bytes = 0;
int64_t Nblocks;
int nblocks;
if ((Nblocks = bdev_Size(dev)) != -1)
bytes = dbtob(Nblocks);
else if ((nblocks = bdev_size(dev)) != -1)
bytes = dbtob(nblocks);
if (bytes > CPR_SPEC_OFFSET)
bytes -= CPR_SPEC_OFFSET;
else
bytes = 0;
return (bytes);
}
