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qcow2: mark more functions as coroutine_fns and GRAPH_RDLOCK

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Mark functions as coroutine_fn when they are only called by other coroutine_fns
and they can suspend.  Change calls to co_wrappers to use the non-wrapped
functions, which in turn requires adding GRAPH_RDLOCK annotations.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20230601115145.196465-11-pbonzini@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Paolo Bonzini 2023-06-01 13:51:43 +02:00 • committed by Kevin Wolf
parent f6b0899493
commit 70bacc4453
5 changed files with 105 additions and 98 deletions
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12
block/qcow2-cluster.c
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@ -823,10 +823,9 @@ static int get_cluster_table(BlockDriverState *bs, uint64_t offset,
*
* Return 0 on success and -errno in error cases
*/
int coroutine_fn qcow2_alloc_compressed_cluster_offset(BlockDriverState *bs,
uint64_t offset,
int compressed_size,
uint64_t *host_offset)
int coroutine_fn GRAPH_RDLOCK
qcow2_alloc_compressed_cluster_offset(BlockDriverState *bs, uint64_t offset,
int compressed_size, uint64_t *host_offset)
{
BDRVQcow2State *s = bs->opaque;
int l2_index, ret;
@ -2038,8 +2037,9 @@ fail:
* all clusters in the same L2 slice) and returns the number of zeroed
* clusters.
*/
static int zero_in_l2_slice(BlockDriverState *bs, uint64_t offset,
uint64_t nb_clusters, int flags)
static int coroutine_fn
zero_in_l2_slice(BlockDriverState *bs, uint64_t offset,
uint64_t nb_clusters, int flags)
{
BDRVQcow2State *s = bs->opaque;
uint64_t *l2_slice;