extend --sync to allow {sync,dsync,0,1}, to support O_DSYNC

[fio.git] / options.c

diff --git a/options.c b/options.c
index b497d973eb03b12852d9ce499ab108ec24457f8f..1e91b3e9e23a79eb780b35c22e9cd7681e82ab58 100644 (file)
--- a/options.c
+++ b/options.c
@@ -3733,14 +3733,32 @@ struct fio_option fio_options[FIO_MAX_OPTS] = {
        {
                .name   = "sync",
                .lname  = "Synchronous I/O",
-               .type   = FIO_OPT_BOOL,
+               .type   = FIO_OPT_STR,
                .off1   = offsetof(struct thread_options, sync_io),
-               .help   = "Use O_SYNC for buffered writes",
-               .def    = "0",
-               .parent = "buffered",
+               .help   = "Use synchronous write IO",
+               .def    = "none",
                .hide   = 1,
                .category = FIO_OPT_C_IO,
                .group  = FIO_OPT_G_IO_TYPE,
+               .posval = {
+                         { .ival = "none",
+                           .oval = 0,
+                         },
+                         { .ival = "0",
+                           .oval = 0,
+                         },
+                         { .ival = "sync",
+                           .oval = O_SYNC,
+                         },
+                         { .ival = "1",
+                           .oval = O_SYNC,
+                         },
+#ifdef O_DSYNC
+                         { .ival = "dsync",
+                           .oval = O_DSYNC,
+                         },
+#endif
+               },
        },
 #ifdef FIO_HAVE_WRITE_HINT
        {