#include <sys/mman.h>
#include "../fio.h"
-#include "../os.h"
static int fio_mmapio_queue(struct thread_data *td, struct io_u *io_u)
{
else if (io_u->ddir == DDIR_WRITE)
memcpy(f->mmap + real_off, io_u->xfer_buf, io_u->xfer_buflen);
else if (io_u->ddir == DDIR_SYNC) {
- size_t len = (f->file_size + page_size - 1) & ~page_mask;
+ size_t len = (f->io_size + page_size - 1) & ~page_mask;
if (msync(f->mmap, len, MS_SYNC)) {
io_u->error = errno;
/*
* not really direct, but should drop the pages from the cache
*/
- if (td->odirect && io_u->ddir != DDIR_SYNC) {
+ if (td->o.odirect && io_u->ddir != DDIR_SYNC) {
size_t len = (io_u->xfer_buflen + page_size - 1) & ~page_mask;
unsigned long long off = real_off & ~page_mask;
if (ret)
return ret;
+ /*
+ * for size checkup, don't mmap anything.
+ */
+ if (!f->io_size)
+ return 0;
+
if (td_rw(td))
flags = PROT_READ | PROT_WRITE;
else if (td_write(td)) {
flags = PROT_WRITE;
- if (td->verify != VERIFY_NONE)
+ if (td->o.verify != VERIFY_NONE)
flags |= PROT_READ;
} else
flags = PROT_READ;
- f->mmap = mmap(NULL, f->file_size, flags, MAP_SHARED, f->fd, f->file_offset);
+ f->mmap = mmap(NULL, f->io_size, flags, MAP_SHARED, f->fd, f->file_offset);
if (f->mmap == MAP_FAILED) {
f->mmap = NULL;
td_verror(td, errno, "mmap");
goto err;
if (!td_random(td)) {
- if (madvise(f->mmap, f->file_size, MADV_SEQUENTIAL) < 0) {
+ if (madvise(f->mmap, f->io_size, MADV_SEQUENTIAL) < 0) {
td_verror(td, errno, "madvise");
goto err;
}
} else {
- if (madvise(f->mmap, f->file_size, MADV_RANDOM) < 0) {
+ if (madvise(f->mmap, f->io_size, MADV_RANDOM) < 0) {
td_verror(td, errno, "madvise");
goto err;
}
struct fio_file *f)
{
if (f->mmap) {
- munmap(f->mmap, f->file_size);
+ munmap(f->mmap, f->io_size);
f->mmap = NULL;
}
generic_close_file(td, f);