Allow user to map rbd images with journaling enabled, but
there is a warning in demsg:
WARNING: kernel journaling is EXPERIMENTAL!
Signed-off-by: Dongsheng Yang <dongsheng.yang@xxxxxxxxxxxx>
---
drivers/block/rbd.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 6f31734..db6ca79 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -118,12 +118,14 @@ static int atomic_dec_return_safe(atomic_t *v)
#define RBD_FEATURE_LAYERING (1ULL<<0)
#define RBD_FEATURE_STRIPINGV2 (1ULL<<1)
#define RBD_FEATURE_EXCLUSIVE_LOCK (1ULL<<2)
+#define RBD_FEATURE_JOURNALING (1ULL<<6)
#define RBD_FEATURE_DATA_POOL (1ULL<<7)
#define RBD_FEATURE_OPERATIONS (1ULL<<8)
#define RBD_FEATURES_ALL (RBD_FEATURE_LAYERING | \
RBD_FEATURE_STRIPINGV2 | \
RBD_FEATURE_EXCLUSIVE_LOCK | \
+ RBD_FEATURE_JOURNALING | \
RBD_FEATURE_DATA_POOL | \
RBD_FEATURE_OPERATIONS)
@@ -6437,6 +6439,11 @@ static int rbd_dev_image_probe(struct rbd_device *rbd_dev, int depth)
"WARNING: kernel layering is EXPERIMENTAL!");
}
+ if (rbd_dev->header.features & RBD_FEATURE_JOURNALING) {
+ rbd_warn(rbd_dev,
+ "WARNING: kernel journaling is EXPERIMENTAL!");
+ }
+
ret = rbd_dev_probe_parent(rbd_dev, depth);
if (ret)
goto err_out_probe;
--
1.8.3.1
