---
block.c | 15 +++++++++++++++
include/block/block.h | 1 +
2 files changed, 16 insertions(+)
diff --git a/block.c b/block.c
index a245653..aee33e0 100644
--- a/block.c
+++ b/block.c
@@ -4327,6 +4327,21 @@ void bdrv_lock_medium(BlockDriverState *bs, bool locked)
}
}
+/* Return true if the device has deduplication */
+bool bdrv_has_dedup(BlockDriverState *bs)
+{
+ BlockDriverInfo bdi;
+ int ret = 0;
+
+ ret = bdrv_get_info((BlockDriverState *) bs, &bdi);
+
+ if (ret < 0) {
+ return false;
+ }
+
+ return bdi.has_dedup;
+}
+
/* needed for generic scsi interface */
int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf)
diff --git a/include/block/block.h b/include/block/block.h
index 2043560..e6f86ac 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -306,6 +306,7 @@ void bdrv_set_enable_write_cache(BlockDriverState *bs, bool
wce);
int bdrv_is_inserted(BlockDriverState *bs);
int bdrv_media_changed(BlockDriverState *bs);
void bdrv_lock_medium(BlockDriverState *bs, bool locked);
+bool bdrv_has_dedup(BlockDriverState *bs);
void bdrv_eject(BlockDriverState *bs, bool eject_flag);
const char *bdrv_get_format_name(BlockDriverState *bs);
BlockDriverState *bdrv_find(const char *name);
--
1.7.10.4
