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[PULL 06/18] block: Support passing NULL ops to blk_set_dev_ops()
From: |
Kevin Wolf |
Subject: |
[PULL 06/18] block: Support passing NULL ops to blk_set_dev_ops() |
Date: |
Thu, 9 Jun 2022 19:21:37 +0200 |
From: Xie Yongji <xieyongji@bytedance.com>
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>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220523084611.91-2-xieyongji@bytedance.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.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 d4abdf8faa..f425b00793 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1058,7 +1058,7 @@ 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);
}
}
--
2.35.3
- [PULL 00/18] Block layer patches, Kevin Wolf, 2022/06/09
- [PULL 09/18] linux-headers: Add vduse.h, Kevin Wolf, 2022/06/09
- [PULL 04/18] block: improve block_dirty_bitmap_merge(): don't allocate extra bitmap, Kevin Wolf, 2022/06/09
- [PULL 12/18] vduse-blk: Add vduse-blk resize support, Kevin Wolf, 2022/06/09
- [PULL 06/18] block: Support passing NULL ops to blk_set_dev_ops(),
Kevin Wolf <=
- [PULL 17/18] aio_wait_kick: add missing memory barrier, Kevin Wolf, 2022/06/09
- [PULL 05/18] block: simplify handling of try to merge different sized bitmaps, Kevin Wolf, 2022/06/09
- [PULL 11/18] vduse-blk: Implement vduse-blk export, Kevin Wolf, 2022/06/09
- [PULL 16/18] block/gluster: correctly set max_pdiscard, Kevin Wolf, 2022/06/09
- [PULL 01/18] block: drop unused bdrv_co_drain() API, Kevin Wolf, 2022/06/09
- [PULL 10/18] libvduse: Add VDUSE (vDPA Device in Userspace) library, Kevin Wolf, 2022/06/09
- [PULL 14/18] qsd: document vduse-blk exports, Kevin Wolf, 2022/06/09
- [PULL 15/18] block/rbd: report a better error when namespace does not exist, Kevin Wolf, 2022/06/09
- [PULL 08/18] block/export: Abstract out the logic of virtio-blk I/O process, Kevin Wolf, 2022/06/09
- [PULL 13/18] libvduse: Add support for reconnecting, Kevin Wolf, 2022/06/09