[PATCH] Link in known io engines

[fio.git] / engines / fio-engine-mmap.c

diff --git a/engines/fio-engine-mmap.c b/engines/fio-engine-mmap.c
index c85f6617309da24d4fca7bcc79dc3c443708f69c..20dcfd2264cb3afc981e371c9c89aa2c28c1a447 100644 (file)
--- a/engines/fio-engine-mmap.c
+++ b/engines/fio-engine-mmap.c
@@ -8,8 +8,9 @@
 #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;
@@ -50,13 +51,15 @@ static int fio_mmapio_queue(struct thread_data *td, struct io_u *io_u)
                memcpy(io_u->buf, f->mmap + real_off, io_u->buflen);
        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)
-               return msync(f->mmap, f->file_size, MS_SYNC);
+       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)
@@ -86,7 +89,7 @@ static int fio_mmapio_init(struct thread_data *td)
        return 0;
 }
 
-struct ioengine_ops ioengine = {
+static struct ioengine_ops ioengine = {
        .name           = "mmap",
        .version        = FIO_IOOPS_VERSION,
        .init           = fio_mmapio_init,
@@ -96,3 +99,13 @@ struct ioengine_ops ioengine = {
        .cleanup        = fio_mmapio_cleanup,
        .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);
+}