[PATCH v11 08/13] copy-on-read: add support for BDRV_REQ_PREFETCH to COR-filter
Add support for the BDRV_REQ_PREFETCH flag to the supported_write_flags
of the COR-filter.
Signed-off-by: Andrey Shinkevich <andrey.shinkevich(a)virtuozzo.com>
---
block/copy-on-read.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/block/copy-on-read.c b/block/copy-on-read.c
index dfbd6ad..b136895 100644
--- a/block/copy-on-read.c
+++ b/block/copy-on-read.c
@@ -50,6 +50,7 @@ static int cor_open(BlockDriverState *bs, QDict *options, int flags,
return -EINVAL;
}
+ bs->supported_read_flags = BDRV_REQ_PREFETCH;
bs->supported_write_flags = BDRV_REQ_WRITE_UNCHANGED |
(BDRV_REQ_FUA & bs->file->bs->supported_write_flags);
--
1.8.3.1