X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=engines%2Fsync.c;h=65fd210cf108293e84f45057726c30e81881a751;hp=b3e1c9db8ba3eeb9d87567dc53b69de5759be715;hb=bb707dffbc345af79474a592991b61dee92831ef;hpb=4a87b5840d35584fd872571d37c69d7544b1b00f

diff --git a/engines/sync.c b/engines/sync.c
index b3e1c9db..65fd210c 100644
--- a/engines/sync.c
+++ b/engines/sync.c
@@ -39,6 +39,7 @@ struct psyncv2_options {
 	void *pad;
 	unsigned int hipri;
 	unsigned int hipri_percentage;
+	unsigned int uncached;
 };
 
 static struct fio_option options[] = {
@@ -63,6 +64,15 @@ static struct fio_option options[] = {
 		.category = FIO_OPT_C_ENGINE,
 		.group	= FIO_OPT_G_INVALID,
 	},
+	{
+		.name	= "uncached",
+		.lname	= "Uncached",
+		.type	= FIO_OPT_INT,
+		.off1	= offsetof(struct psyncv2_options, uncached),
+		.help	= "Use RWF_UNCACHED for buffered read/writes",
+		.category = FIO_OPT_C_ENGINE,
+		.group	= FIO_OPT_G_INVALID,
+	},
 	{
 		.name	= NULL,
 	},
@@ -152,6 +162,8 @@ static enum fio_q_status fio_pvsyncio2_queue(struct thread_data *td,
 	if (o->hipri &&
 	    (rand_between(&sd->rand_state, 1, 100) <= o->hipri_percentage))
 		flags |= RWF_HIPRI;
+	if (!td->o.odirect && o->uncached)
+		flags |= RWF_UNCACHED;
 
 	iov->iov_base = io_u->xfer_buf;
 	iov->iov_len = io_u->xfer_buflen;