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nbd: force read-only export for read-only devices
author
Paolo Bonzini
<pbonzini@redhat.com>
Sun, 4 Nov 2012 11:43:37 +0000
(12:43 +0100)
committer
Paolo Bonzini
<pbonzini@redhat.com>
Mon, 12 Nov 2012 13:38:29 +0000
(14:38 +0100)
This is the desired behavior for HMP, but it is a better choice for QMP as well.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
blockdev-nbd.c
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diff --git
a/blockdev-nbd.c
b/blockdev-nbd.c
index
274fba6
..
e362572
100644
(file)
--- a/
blockdev-nbd.c
+++ b/
blockdev-nbd.c
@@
-93,6
+93,13
@@
void qmp_nbd_server_add(const char *device, bool has_writable, bool writable,
return;
}
+ if (!has_writable) {
+ writable = true;
+ }
+ if (bdrv_is_read_only(bs)) {
+ writable = false;
+ }
+
exp = nbd_export_new(bs, 0, -1, writable ? 0 : NBD_FLAG_READ_ONLY,
nbd_server_put_ref);