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Re: [PATCH] migration/rdma: rdma_accept_incoming_migration fix error han
From: |
Dr. David Alan Gilbert |
Subject: |
Re: [PATCH] migration/rdma: rdma_accept_incoming_migration fix error handling |
Date: |
Tue, 11 Feb 2020 11:15:06 +0000 |
User-agent: |
Mutt/1.13.3 (2020-01-12) |
* Juan Quintela (address@hidden) wrote:
> "Dr. David Alan Gilbert (git)" <address@hidden> wrote:
> > From: "Dr. David Alan Gilbert" <address@hidden>
> >
> > rdma_accept_incoming_migration is called from an fd handler and
> > can't return an Error * anywhere.
> > Currently it's leaking Error's in errp/local_err - there's
> > no point putting them in there unless we can report them.
> >
> > Turn most into fprintf's, and the last into an error_reportf_err
> > where it's coming up from another function.
> >
> > Signed-off-by: Dr. David Alan Gilbert <address@hidden>
> > ---
> > migration/rdma.c | 11 +++++++----
> > 1 file changed, 7 insertions(+), 4 deletions(-)
> >
> > diff --git a/migration/rdma.c b/migration/rdma.c
> > index 2379b8345b..f67161c98f 100644
> > --- a/migration/rdma.c
> > +++ b/migration/rdma.c
> > @@ -3980,13 +3980,13 @@ static void rdma_accept_incoming_migration(void
> > *opaque)
> > RDMAContext *rdma = opaque;
> > int ret;
> > QEMUFile *f;
> > - Error *local_err = NULL, **errp = &local_err;
> > + Error *local_err = NULL;
> >
> > trace_qemu_rdma_accept_incoming_migration();
> > ret = qemu_rdma_accept(rdma);
> >
> > if (ret) {
> > - ERROR(errp, "RDMA Migration initialization failed!");
> > + fprintf(stderr, "RDMA ERROR: Migration initialization failed");
> > return;
>
> this should end in "\n" right?
Oops thanks; and in the one below.
> Appart from that.
>
> Reviewed-by: Juan Quintela <address@hidden>
>
> BTW, I can include the \n when I queue the patch, no need to resend
Thanks
Dave
>
> > }
> >
> > @@ -3998,13 +3998,16 @@ static void rdma_accept_incoming_migration(void
> > *opaque)
> >
> > f = qemu_fopen_rdma(rdma, "rb");
> > if (f == NULL) {
> > - ERROR(errp, "could not qemu_fopen_rdma!");
> > + fprintf(stderr, "RDMA ERROR: could not qemu_fopen_rdma");
> > qemu_rdma_cleanup(rdma);
> > return;
> > }
> >
> > rdma->migration_started_on_destination = 1;
> > - migration_fd_process_incoming(f, errp);
> > + migration_fd_process_incoming(f, &local_err);
> > + if (local_err) {
> > + error_reportf_err(local_err, "RDMA ERROR:");
> > + }
> > }
> >
> > void rdma_start_incoming_migration(const char *host_port, Error **errp)
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK