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mirror: Store MirrorOp.co for debuggability

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If a coroutine is launched, but the coroutine pointer isn't stored
anywhere, debugging any problems inside the coroutine is quite hard.
Let's store the coroutine pointer of a mirror operation in MirrorOp to
have it available in the debugger.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Kevin Wolf 2020-01-28 16:06:41 +01:00
parent 6c599282f8
commit eed325b92c
1 changed files with 2 additions and 0 deletions
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2
block/mirror.c
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@ -103,6 +103,7 @@ struct MirrorOp {
bool is_pseudo_op;
bool is_active_write;
CoQueue waiting_requests;
Coroutine *co;
QTAILQ_ENTRY(MirrorOp) next;
};
@ -429,6 +430,7 @@ static unsigned mirror_perform(MirrorBlockJob *s, int64_t offset,
default:
abort();
}
op->co = co;
QTAILQ_INSERT_TAIL(&s->ops_in_flight, op, next);
qemu_coroutine_enter(co);