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block: bdrv/blk_co_unref() for calls in coroutine context

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These functions must not be called in coroutine context, because they
need write access to the graph.

Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230504115750.54437-4-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2023-05-04 13:57:33 +02:00
parent da4afaff07
commit b2ab5f545f
12 changed files with 44 additions and 40 deletions
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5
include/sysemu/block-backend-global-state.h
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@ -42,7 +42,10 @@ blk_co_new_open(const char *filename, const char *reference, QDict *options,
int blk_get_refcnt(BlockBackend *blk);
void blk_ref(BlockBackend *blk);
void blk_unref(BlockBackend *blk);
void no_coroutine_fn blk_unref(BlockBackend *blk);
void coroutine_fn no_co_wrapper blk_co_unref(BlockBackend *blk);
void blk_remove_all_bs(void);
BlockBackend *blk_by_name(const char *name);
BlockBackend *blk_next(BlockBackend *blk);