#include <errno.h>
#include <assert.h>
#include <sys/mman.h>
-#include "fio.h"
-#include "os.h"
+
+#include "../fio.h"
+#include "../os.h"
struct mmapio_data {
struct io_u *last_io_u;
if (io_u->ddir == DDIR_READ)
memcpy(io_u->buf, f->mmap + real_off, io_u->buflen);
- else
+ else if (io_u->ddir == DDIR_WRITE)
memcpy(f->mmap + real_off, io_u->buf, io_u->buflen);
+ else if (io_u->ddir == DDIR_SYNC) {
+ if (msync(f->mmap, f->file_size, MS_SYNC))
+ io_u->error = errno;
+ }
/*
* not really direct, but should drop the pages from the cache
*/
- if (td->odirect) {
+ if (td->odirect && io_u->ddir != DDIR_SYNC) {
if (msync(f->mmap + real_off, io_u->buflen, MS_SYNC) < 0)
io_u->error = errno;
if (madvise(f->mmap + real_off, io_u->buflen, MADV_DONTNEED) < 0)
return io_u->error;
}
-static int fio_mmapio_sync(struct thread_data fio_unused *td,
- struct fio_file *f)
-{
- return msync(f->mmap, f->file_size, MS_SYNC);
-}
-
static void fio_mmapio_cleanup(struct thread_data *td)
{
if (td->io_ops->data) {
return 0;
}
-struct ioengine_ops ioengine = {
+static struct ioengine_ops ioengine = {
.name = "mmap",
.version = FIO_IOOPS_VERSION,
.init = fio_mmapio_init,
.getevents = fio_mmapio_getevents,
.event = fio_mmapio_event,
.cleanup = fio_mmapio_cleanup,
- .sync = fio_mmapio_sync,
.flags = FIO_SYNCIO | FIO_MMAPIO,
};
+
+static void fio_init fio_mmapio_register(void)
+{
+ register_ioengine(&ioengine);
+}
+
+static void fio_exit fio_mmapio_unregister(void)
+{
+ unregister_ioengine(&ioengine);
+}