}
if (!td_random(td)) {
- if (madvise(f->mmap_ptr, length, MADV_SEQUENTIAL) < 0) {
+ if (posix_madvise(f->mmap_ptr, length, POSIX_MADV_SEQUENTIAL) < 0) {
td_verror(td, errno, "madvise");
goto err;
}
} else {
- if (madvise(f->mmap_ptr, length, MADV_RANDOM) < 0) {
+ if (posix_madvise(f->mmap_ptr, length, POSIX_MADV_RANDOM) < 0) {
td_verror(td, errno, "madvise");
goto err;
}
err:
if (td->error && f->mmap_ptr)
munmap(f->mmap_ptr, length);
-
+
return td->error;
}
return EIO;
}
- if (f->mmap_ptr) {
- if (munmap(f->mmap_ptr, f->mmap_sz) < 0)
- return errno;
- f->mmap_ptr = NULL;
- }
-
f->mmap_sz = mmap_map_size;
if (f->mmap_sz > f->io_size)
f->mmap_sz = f->io_size;
if (fio_file_partial_mmap(f))
return EINVAL;
- if (f->mmap_ptr) {
- if (munmap(f->mmap_ptr, f->mmap_sz) < 0)
- return errno;
- f->mmap_ptr = NULL;
- }
-
f->mmap_sz = f->io_size;
f->mmap_off = 0;
struct fio_file *f = io_u->file;
int ret;
+ /*
+ * It fits within existing mapping, use it
+ */
if (io_u->offset >= f->mmap_off &&
io_u->offset + io_u->buflen < f->mmap_off + f->mmap_sz)
goto done;
+ /*
+ * unmap any existing mapping
+ */
+ if (f->mmap_ptr) {
+ if (munmap(f->mmap_ptr, f->mmap_sz) < 0)
+ return errno;
+ f->mmap_ptr = NULL;
+ }
+
if (fio_mmapio_prep_full(td, io_u)) {
td_clear_error(td);
ret = fio_mmapio_prep_limited(td, io_u);
io_u->error = errno;
td_verror(td, io_u->error, "msync");
}
+ } else if (io_u->ddir == DDIR_TRIM) {
+ int ret = do_io_u_trim(td, io_u);
+
+ if (!ret)
+ td_verror(td, io_u->error, "trim");
}
+
/*
* not really direct, but should drop the pages from the cache
*/
- if (td->o.odirect && !ddir_sync(io_u->ddir)) {
+ if (td->o.odirect && ddir_rw(io_u->ddir)) {
if (msync(io_u->mmap_data, io_u->xfer_buflen, MS_SYNC) < 0) {
io_u->error = errno;
td_verror(td, io_u->error, "msync");
}
- if (madvise(io_u->mmap_data, io_u->xfer_buflen, MADV_DONTNEED) < 0) {
+ if (posix_madvise(io_u->mmap_data, io_u->xfer_buflen, POSIX_MADV_DONTNEED) < 0) {
io_u->error = errno;
td_verror(td, io_u->error, "madvise");
}
static int fio_mmapio_init(struct thread_data *td)
{
+ struct thread_options *o = &td->o;
unsigned long shift, mask;
+ if ((td->o.rw_min_bs & page_mask) &&
+ (o->odirect || o->fsync_blocks || o->fdatasync_blocks)) {
+ log_err("fio: mmap options dictate a minimum block size of "
+ "%lu bytes\n", page_size);
+ return 1;
+ }
+
mmap_map_size = MMAP_TOTAL_SZ / td->o.nr_files;
mask = mmap_map_size;
shift = 0;
break;
shift++;
} while (1);
-
+
mmap_map_mask = 1UL << shift;
return 0;
}