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[PATCH v4 1/6] block: Support passing NULL ops to blk_set_dev_ops()
From: |
Xie Yongji |
Subject: |
[PATCH v4 1/6] block: Support passing NULL ops to blk_set_dev_ops() |
Date: |
Wed, 6 Apr 2022 15:59:16 +0800 |
This supports passing NULL ops to blk_set_dev_ops()
so that we can remove stale ops in some cases.
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
---
block/block-backend.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/block/block-backend.c b/block/block-backend.c
index e0e1aff4b1..35457a6a1d 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1062,7 +1062,7 @@ void blk_set_dev_ops(BlockBackend *blk, const BlockDevOps
*ops,
blk->dev_opaque = opaque;
/* Are we currently quiesced? Should we enforce this right now? */
- if (blk->quiesce_counter && ops->drained_begin) {
+ if (blk->quiesce_counter && ops && ops->drained_begin) {
ops->drained_begin(opaque);
}
}
--
2.20.1
[PATCH v4 3/6] libvduse: Add VDUSE (vDPA Device in Userspace) library, Xie Yongji, 2022/04/06
[PATCH v4 5/6] vduse-blk: Add vduse-blk resize support, Xie Yongji, 2022/04/06
[PATCH v4 6/6] libvduse: Add support for reconnecting, Xie Yongji, 2022/04/06