[dm-devel] calling dm_io
Kasatkin, Dmitry
dmitry.kasatkin at intel.com
Thu Nov 8 16:04:44 UTC 2012
Hello,
dm_io() does following:
if (!io_req->notify.fn)
So it expects caller to initialize notify.fn, but in couple of places
it is not done when allocating on stack...
dm-bufio.c:dm_bufio_issue_flush()
dm-raid1.c:mirror_flush()
chunk_io() does it correctly...
struct dm_io_request io_req = {
....,
.notify.fn = NULL,
};
I wonder how raid and buf io then works. By chance...
- Dmitry
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