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block: Mark bdrv_co_get_info() and callers GRAPH_RDLOCK

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This adds GRAPH_RDLOCK annotations to declare that callers of
bdrv_co_get_info() need to hold a reader lock for the graph.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20230504115750.54437-15-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Emanuele Giuseppe Esposito 2023-05-04 13:57:44 +02:00 • committed by Kevin Wolf
parent de335638a3
commit a00e70c012
7 changed files with 22 additions and 14 deletions
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11
block/io.c
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@ -727,10 +727,9 @@ BdrvTrackedRequest *coroutine_fn bdrv_co_get_self_request(BlockDriverState *bs)
/**
* Round a region to cluster boundaries
*/
void coroutine_fn bdrv_round_to_clusters(BlockDriverState *bs,
int64_t offset, int64_t bytes,
int64_t *cluster_offset,
int64_t *cluster_bytes)
void coroutine_fn GRAPH_RDLOCK
bdrv_round_to_clusters(BlockDriverState *bs, int64_t offset, int64_t bytes,
int64_t *cluster_offset, int64_t *cluster_bytes)
{
BlockDriverInfo bdi;
IO_CODE();
@ -744,7 +743,7 @@ void coroutine_fn bdrv_round_to_clusters(BlockDriverState *bs,
}
}
static coroutine_fn int bdrv_get_cluster_size(BlockDriverState *bs)
static int coroutine_fn GRAPH_RDLOCK bdrv_get_cluster_size(BlockDriverState *bs)
{
BlockDriverInfo bdi;
int ret;
@ -1800,7 +1799,7 @@ fail:
return ret;
}
static inline int coroutine_fn
static inline int coroutine_fn GRAPH_RDLOCK
bdrv_co_write_req_prepare(BdrvChild *child, int64_t offset, int64_t bytes,
BdrvTrackedRequest *req, int flags)
{