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mirror: Require GRAPH_RDLOCK for accessing a node's parent list

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This adds GRAPH_RDLOCK annotations to declare that functions accessing
the parent list of a node need to hold a reader lock for the graph. As
it happens, they already do.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20230504115750.54437-13-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2023-05-04 13:57:42 +02:00
parent 622d30af99
commit 9c93652da6
1 changed files with 1 additions and 1 deletions
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2
block/mirror.c
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@ -1416,7 +1416,7 @@ static MirrorOp *coroutine_fn active_write_prepare(MirrorBlockJob *s,
return op;
}
static void coroutine_fn active_write_settle(MirrorOp *op)
static void coroutine_fn GRAPH_RDLOCK active_write_settle(MirrorOp *op)
{
uint64_t start_chunk = op->offset / op->s->granularity;
uint64_t end_chunk = DIV_ROUND_UP(op->offset + op->bytes,