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qapi: add nbd-server-remove

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Add command for removing an export. It is needed for cases when we
don't want to keep the export after the operation on it was completed.
The other example is a temporary node, created with blockdev-add.
If we want to delete it we should firstly remove any corresponding
NBD export.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20180119135719.24745-3-vsementsov@virtuozzo.com>
[eblake: drop dead nb_clients code]
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy
2018-01-19 16:57:16 +03:00
committed by Eric Blake
parent dba49323ea
commit a3b0dc7582
4 changed files with 79 additions and 0 deletions
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24
blockdev-nbd.c
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@ -189,6 +189,30 @@ void qmp_nbd_server_add(const char *device, bool has_name, const char *name,
nbd_export_put(exp);
}
void qmp_nbd_server_remove(const char *name,
bool has_mode, NbdServerRemoveMode mode,
Error **errp)
{
NBDExport *exp;
if (!nbd_server) {
error_setg(errp, "NBD server not running");
return;
}
exp = nbd_export_find(name);
if (exp == NULL) {
error_setg(errp, "Export '%s' is not found", name);
return;
}
if (!has_mode) {
mode = NBD_SERVER_REMOVE_MODE_SAFE;
}
nbd_export_remove(exp, mode, errp);
}
void qmp_nbd_server_stop(Error **errp)
{
nbd_export_close_all();