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| author | Kevin Wolf <kwolf@redhat.com> | 2023-09-11 11:46:18 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-09-20 17:46:01 +0200 |
| commit | ede01e4635050a395eacd57b7d7fbea8ea208704 (patch) | |
| tree | 92113b8f904153f9ab38134a921b8993240c0946 /include/block | |
| parent | 7f831d29e3d005e499b22c0591a26a33eb5c406d (diff) | |
| download | qemu-ede01e4635050a395eacd57b7d7fbea8ea208704.zip qemu-ede01e4635050a395eacd57b7d7fbea8ea208704.tar.gz qemu-ede01e4635050a395eacd57b7d7fbea8ea208704.tar.bz2 | |
block: Mark bdrv_root_unref_child() GRAPH_WRLOCK
Instead of taking the writer lock internally, require callers to already
hold it when calling bdrv_root_unref_child(). These callers will
typically already hold the graph lock once the locking work is
completed, which means that they can't call functions that take it
internally.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230911094620.45040-20-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/block_int-global-state.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/block/block_int-global-state.h b/include/block/block_int-global-state.h index e2304db..074b677 100644 --- a/include/block/block_int-global-state.h +++ b/include/block/block_int-global-state.h @@ -202,7 +202,7 @@ BdrvChild *bdrv_root_attach_child(BlockDriverState *child_bs, BdrvChildRole child_role, uint64_t perm, uint64_t shared_perm, void *opaque, Error **errp); -void bdrv_root_unref_child(BdrvChild *child); +void GRAPH_WRLOCK bdrv_root_unref_child(BdrvChild *child); void GRAPH_RDLOCK bdrv_get_cumulative_perm(BlockDriverState *bs, uint64_t *perm, uint64_t *shared_perm); |