diff options
Diffstat (limited to 'block/iscsi.c')
| -rw-r--r-- | block/iscsi.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/block/iscsi.c b/block/iscsi.c index 2ced15066a..2aea7e3f13 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -2123,9 +2123,11 @@ static void iscsi_reopen_commit(BDRVReopenState *reopen_state) } static int coroutine_fn iscsi_co_truncate(BlockDriverState *bs, int64_t offset, - PreallocMode prealloc, Error **errp) + bool exact, PreallocMode prealloc, + Error **errp) { IscsiLun *iscsilun = bs->opaque; + int64_t cur_length; Error *local_err = NULL; if (prealloc != PREALLOC_MODE_OFF) { @@ -2145,7 +2147,11 @@ static int coroutine_fn iscsi_co_truncate(BlockDriverState *bs, int64_t offset, return -EIO; } - if (offset > iscsi_getlength(bs)) { + cur_length = iscsi_getlength(bs); + if (offset != cur_length && exact) { + error_setg(errp, "Cannot resize iSCSI devices"); + return -ENOTSUP; + } else if (offset > cur_length) { error_setg(errp, "Cannot grow iSCSI devices"); return -EINVAL; } |