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[PATCH v2 1/6] block: Support passing NULL ops to blk_set_dev_ops()
From: |
Xie Yongji |
Subject: |
[PATCH v2 1/6] block: Support passing NULL ops to blk_set_dev_ops() |
Date: |
Tue, 15 Feb 2022 18:59:38 +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 4ff6b4d785..08dd0a3093 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1015,7 +1015,7 @@ 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 v2 0/6] Support exporting BDSs via VDUSE, Xie Yongji, 2022/02/15
- [PATCH v2 2/6] linux-headers: Add vduse.h, Xie Yongji, 2022/02/15
- [PATCH v2 1/6] block: Support passing NULL ops to blk_set_dev_ops(),
Xie Yongji <=
- [PATCH v2 3/6] libvduse: Add VDUSE (vDPA Device in Userspace) library, Xie Yongji, 2022/02/15
- [PATCH v2 5/6] vduse-blk: Add vduse-blk resize support, Xie Yongji, 2022/02/15
- [PATCH v2 6/6] libvduse: Add support for reconnecting, Xie Yongji, 2022/02/15
- [PATCH v2 4/6] vduse-blk: implements vduse-blk export, Xie Yongji, 2022/02/15