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[PULL v2 06/20] block: Support passing NULL ops to blk_set_dev_ops()
From: |
Kevin Wolf |
Subject: |
[PULL v2 06/20] block: Support passing NULL ops to blk_set_dev_ops() |
Date: |
Fri, 24 Jun 2022 17:40:49 +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 v2 00/20] Block layer patches, Kevin Wolf, 2022/06/24
- [PULL v2 02/20] block: get rid of blk->guest_block_size, Kevin Wolf, 2022/06/24
- [PULL v2 01/20] block: drop unused bdrv_co_drain() API, Kevin Wolf, 2022/06/24
- [PULL v2 03/20] block: block_dirty_bitmap_merge(): fix error path, Kevin Wolf, 2022/06/24
- [PULL v2 04/20] block: improve block_dirty_bitmap_merge(): don't allocate extra bitmap, Kevin Wolf, 2022/06/24
- [PULL v2 06/20] block: Support passing NULL ops to blk_set_dev_ops(),
Kevin Wolf <=
- [PULL v2 07/20] block/export: Fix incorrect length passed to vu_queue_push(), Kevin Wolf, 2022/06/24
- [PULL v2 13/20] libvduse: Add support for reconnecting, Kevin Wolf, 2022/06/24
- [PULL v2 05/20] block: simplify handling of try to merge different sized bitmaps, Kevin Wolf, 2022/06/24
- [PULL v2 09/20] linux-headers: Add vduse.h, Kevin Wolf, 2022/06/24
- [PULL v2 11/20] vduse-blk: Implement vduse-blk export, Kevin Wolf, 2022/06/24
- [PULL v2 10/20] libvduse: Add VDUSE (vDPA Device in Userspace) library, Kevin Wolf, 2022/06/24
- [PULL v2 08/20] block/export: Abstract out the logic of virtio-blk I/O process, Kevin Wolf, 2022/06/24
- [PULL v2 14/20] qsd: document vduse-blk exports, Kevin Wolf, 2022/06/24