[v4] block: do not drain while holding the graph lock

[PATCH v4 36/48] block: mark bdrv_inactivate_all() as GRAPH_UNLOCKED

Fiona Ebner posted 48 patches 5 months, 2 weeks ago

Diff against v2 v3
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Maintainers: Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, John Snow <jsnow@redhat.com>, Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>, Ari Sundholm <ari@tuxera.com>, Stefan Hajnoczi <stefanha@redhat.com>, Fam Zheng <fam@euphon.net>, Alberto Garcia <berto@igalia.com>, Wen Congyang <wencongyang2@huawei.com>, Xie Changlong <xiechanglong.d@gmail.com>

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[PATCH v4 36/48] block: mark bdrv_inactivate_all() as GRAPH_UNLOCKED

Posted by Fiona Ebner 5 months, 2 weeks ago

The function bdrv_inactivate_all() calls bdrv_drain_all_begin(), which
must be called with the graph unlocked.

Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
 include/block/block-global-state.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/block/block-global-state.h b/include/block/block-global-state.h
index a641beb270..eec92a98da 100644
--- a/include/block/block-global-state.h
+++ b/include/block/block-global-state.h
@@ -187,7 +187,7 @@ int no_coroutine_fn GRAPH_RDLOCK
 bdrv_inactivate(BlockDriverState *bs, Error **errp);
 
 void bdrv_activate_all(Error **errp);
-int bdrv_inactivate_all(void);
+int GRAPH_UNLOCKED bdrv_inactivate_all(void);
 
 int bdrv_flush_all(void);
 void bdrv_close_all(void);
-- 
2.39.5