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block: Mark preadv_snapshot/snapshot_block_status GRAPH_RDLOCK

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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230203152202.49054-16-kwolf@redhat.com>
Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2023-02-03 16:21:54 +01:00
parent 742bf09b20
commit 7b9e8b22bc
5 changed files with 17 additions and 15 deletions
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6
block/copy-before-write.c
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@ -256,7 +256,7 @@ cbw_snapshot_read_unlock(BlockDriverState *bs, BlockReq *req)
g_free(req);
}
static coroutine_fn int
static int coroutine_fn GRAPH_RDLOCK
cbw_co_preadv_snapshot(BlockDriverState *bs, int64_t offset, int64_t bytes,
QEMUIOVector *qiov, size_t qiov_offset)
{
@ -264,8 +264,6 @@ cbw_co_preadv_snapshot(BlockDriverState *bs, int64_t offset, int64_t bytes,
BdrvChild *file;
int ret;
assume_graph_lock(); /* FIXME */
/* TODO: upgrade to async loop using AioTask */
while (bytes) {
int64_t cur_bytes;
@ -290,7 +288,7 @@ cbw_co_preadv_snapshot(BlockDriverState *bs, int64_t offset, int64_t bytes,
return 0;
}
static int coroutine_fn
static int coroutine_fn GRAPH_RDLOCK
cbw_co_snapshot_block_status(BlockDriverState *bs,
bool want_zero, int64_t offset, int64_t bytes,
int64_t *pnum, int64_t *map,