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[Qemu-devel] [PATCH v2 03/12] block/stream: Swap backing file change ord
From: |
Max Reitz |
Subject: |
[Qemu-devel] [PATCH v2 03/12] block/stream: Swap backing file change order |
Date: |
Wed, 3 Jul 2019 19:28:04 +0200 |
bdrv_change_backing_file() can result in yields. Therefore, @base may
no longer be the the backing_bs() of s->bottom afterwards.
Just swap the order of the two calls to fix this.
Signed-off-by: Max Reitz <address@hidden>
---
block/stream.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/stream.c b/block/stream.c
index b27e61625d..6ac1e7bec4 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -78,8 +78,8 @@ static int stream_prepare(Job *job)
base_fmt = base->drv->format_name;
}
}
- ret = bdrv_change_backing_file(bs, base_id, base_fmt);
bdrv_set_backing_hd(bs, base, &local_err);
+ ret = bdrv_change_backing_file(bs, base_id, base_fmt);
if (local_err) {
error_report_err(local_err);
return -EPERM;
--
2.21.0
- [Qemu-devel] [PATCH v2 01/12] block: Add BDS.never_freeze, (continued)
- [Qemu-devel] [PATCH v2 01/12] block: Add BDS.never_freeze, Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 04/12] block: Keep subtree drained in drop_intermediate, Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 11/12] iotests: Add read-only test case to 030, Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 02/12] block/stream: Fix error path, Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 05/12] block: Reduce (un)drains when replacing a child, Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 09/12] iotests: Add @use_log to VM.run_job(), Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 12/12] iotests: Add test for concurrent stream/commit, Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 07/12] iotests: Fix throttling in 030, Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 03/12] block/stream: Swap backing file change order,
Max Reitz <=
- [Qemu-devel] [PATCH v2 08/12] iotests: Compare error messages in 030, Max Reitz, 2019/07/03
- [Qemu-devel] [PATCH v2 06/12] block: Deep-clear inherits_from, Max Reitz, 2019/07/03
[Qemu-devel] [PATCH v2 10/12] iotests: Add new case to 030, Max Reitz, 2019/07/03
Re: [Qemu-devel] [PATCH v2 00/12] block: Fixes for concurrent block jobs, Max Reitz, 2019/07/10
Re: [Qemu-devel] [PATCH v2 00/12] block: Fixes for concurrent block jobs, Max Reitz, 2019/07/15