在 2019/1/2 上午10:36, David Gibson 写道:
On Tue, Dec 25, 2018 at 10:04:43PM +0800, Fei Li wrote:
Add a local_err to hold the error, and return the corresponding
error code to replace the temporary &error_abort.

Cc: Markus Armbruster <arm...@redhat.com>
Cc: David Gibson <da...@gibson.dropbear.id.au>
Signed-off-by: Fei Li <f...@suse.com>
This looks like a good change, but it no longer applies due to a
change in the qemu_thread_create() signature.
Sorry that I am not sure whether I understand. Do you mean using
&error_abort is more suitable for this handling, rather than report
the &local_err & return a failure reason?

---
  hw/ppc/spapr_hcall.c | 12 ++++++++----
  1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index 5bc2cf4540..7c16ade04a 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -478,6 +478,7 @@ static target_ulong h_resize_hpt_prepare(PowerPCCPU *cpu,
      sPAPRPendingHPT *pending = spapr->pending_hpt;
      uint64_t current_ram_size;
      int rc;
+    Error *local_err = NULL;
if (spapr->resize_hpt == SPAPR_RESIZE_HPT_DISABLED) {
          return H_AUTHORITY;
@@ -538,10 +539,13 @@ static target_ulong h_resize_hpt_prepare(PowerPCCPU *cpu,
      pending->shift = shift;
      pending->ret = H_HARDWARE;
- /* TODO: let the further caller handle the error instead of abort() here */
-    qemu_thread_create(&pending->thread, "sPAPR HPT prepare",
-                       hpt_prepare_thread, pending,
-                       QEMU_THREAD_DETACHED, &error_abort);
+    if (!qemu_thread_create(&pending->thread, "sPAPR HPT prepare",
+                            hpt_prepare_thread, pending,
+                            QEMU_THREAD_DETACHED, &local_err)) {
+        error_reportf_err(local_err, "failed to create hpt_prepare_thread: ");
+        g_free(pending);
+        return H_RESOURCE;
I also think H_HARDWARE would be a better choice here.  Although the
failure is due to a resource constraint, it's not because the guest
asked for too much, just because the host is in dire straits.  From
the guest's point of view it's basically a hardware failure.

Ok, thanks. Will use H_HARDWARE instead.

Have a nice day, thanks for the review. :)
Fei

+    }
spapr->pending_hpt = pending;


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