From: Xie Yongji <xieyongji@bytedance.com>
To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com,
sgarzare@redhat.com, kwolf@redhat.com, mreitz@redhat.com,
mlureau@redhat.com
Cc: qemu-devel@nongnu.org, qemu-block@nongnu.org
Subject: [PATCH v2 1/6] block: Support passing NULL ops to blk_set_dev_ops()
Date: Tue, 15 Feb 2022 18:59:38 +0800 [thread overview]
Message-ID: <20220215105943.90-2-xieyongji@bytedance.com> (raw)
In-Reply-To: <20220215105943.90-1-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>
---
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
next prev parent reply other threads:[~2022-02-15 11:05 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-15 10:59 [PATCH v2 0/6] Support exporting BDSs via VDUSE Xie Yongji
2022-02-15 10:59 ` Xie Yongji [this message]
2022-03-14 17:23 ` [PATCH v2 1/6] block: Support passing NULL ops to blk_set_dev_ops() Stefan Hajnoczi
2022-03-14 19:09 ` John Snow
2022-03-15 8:47 ` Stefan Hajnoczi
2022-03-15 19:30 ` John Snow
2022-03-16 12:18 ` Stefan Hajnoczi
2022-03-17 8:57 ` Kevin Wolf
2022-02-15 10:59 ` [PATCH v2 2/6] linux-headers: Add vduse.h Xie Yongji
2022-02-15 10:59 ` [PATCH v2 3/6] libvduse: Add VDUSE (vDPA Device in Userspace) library Xie Yongji
2022-03-15 9:48 ` Stefan Hajnoczi
2022-03-15 11:38 ` Yongji Xie
2022-03-16 13:28 ` Stefan Hajnoczi
2022-03-16 13:49 ` Yongji Xie
2022-03-16 15:51 ` Stefan Hajnoczi
2022-03-17 2:15 ` Yongji Xie
2022-02-15 10:59 ` [PATCH v2 4/6] vduse-blk: implements vduse-blk export Xie Yongji
2022-03-15 11:08 ` Stefan Hajnoczi
2022-03-15 11:52 ` Yongji Xie
2022-03-16 12:16 ` Stefan Hajnoczi
2022-03-16 13:24 ` Yongji Xie
2022-02-15 10:59 ` [PATCH v2 5/6] vduse-blk: Add vduse-blk resize support Xie Yongji
2022-03-15 13:36 ` Stefan Hajnoczi
2022-02-15 10:59 ` [PATCH v2 6/6] libvduse: Add support for reconnecting Xie Yongji
2022-03-15 13:48 ` Stefan Hajnoczi
2022-03-16 2:33 ` Yongji Xie
2022-03-09 15:37 ` [PATCH v2 0/6] Support exporting BDSs via VDUSE Stefan Hajnoczi
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