diff options
| author | John Snow <jsnow@redhat.com> | 2019-03-12 12:05:48 -0400 |
|---|---|---|
| committer | John Snow <jsnow@redhat.com> | 2019-03-12 12:05:48 -0400 |
| commit | 3b78a92776bf1199b6864f2f38d9d341fb741f36 (patch) | |
| tree | 50d7ec82fc652efa93dc9bc51e1b1c9db6d63c57 | |
| parent | 8b2e20f64f25a5bf9a7cd45b4babdf2d7416f7ad (diff) | |
nbd: change error checking order for bitmaps
Check that the bitmap is not in use prior to it checking if it is
not enabled/recording guest writes. The bitmap being busy was likely
at the behest of the user, so this error has a greater chance of being
understood by the user.
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20190223000614.13894-6-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
| -rw-r--r-- | nbd/server.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/nbd/server.c b/nbd/server.c index 8ddfd3e319..6c6cade12b 100644 --- a/nbd/server.c +++ b/nbd/server.c @@ -1510,6 +1510,11 @@ NBDExport *nbd_export_new(BlockDriverState *bs, uint64_t dev_offset, goto fail; } + if (bdrv_dirty_bitmap_user_locked(bm)) { + error_setg(errp, "Bitmap '%s' is in use", bitmap); + goto fail; + } + if ((nbdflags & NBD_FLAG_READ_ONLY) && bdrv_is_writable(bs) && bdrv_dirty_bitmap_enabled(bm)) { error_setg(errp, @@ -1518,11 +1523,6 @@ NBDExport *nbd_export_new(BlockDriverState *bs, uint64_t dev_offset, goto fail; } - if (bdrv_dirty_bitmap_user_locked(bm)) { - error_setg(errp, "Bitmap '%s' is in use", bitmap); - goto fail; - } - bdrv_dirty_bitmap_set_qmp_locked(bm, true); exp->export_bitmap = bm; exp->export_bitmap_context = g_strdup_printf("qemu:dirty-bitmap:%s", |