From: "Richard W.M. Jones" <rjo...@redhat.com>
Signed-off-by: Richard W.M. Jones <rjo...@redhat.com>
Signed-off-by: Fam Zheng <f...@redhat.com>
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
block/curl.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/block/curl.c b/block/curl.c
index 4dc3b4b..0fba451 100644
--- a/block/curl.c
+++ b/block/curl.c
@@ -406,6 +406,12 @@ static int curl_open(BlockDriverState *bs, QDict *options,
int flags)
static int inited = 0;
+ if (flags & BDRV_O_RDWR) {
+ qerror_report(ERROR_CLASS_GENERIC_ERROR,
+ "curl block device does not support writes");
+ return -EROFS;
+ }
+
opts = qemu_opts_create_nofail(&runtime_opts);
qemu_opts_absorb_qdict(opts, options, &local_err);
if (error_is_set(&local_err)) {
--
1.8.1.4
