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| author | Markus Armbruster <armbru@redhat.com> | 2023-09-21 14:13:06 +0200 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2023-09-29 08:13:57 +0200 |
| commit | bbde656263d80429b51017b077d9b4064ba13b01 (patch) | |
| tree | a6720b6713124da5b7716fbf3f5628a56fb04264 /migration | |
| parent | 36e9aab3c569d4c9ad780473596e18479838d1aa (diff) | |
| download | qemu-bbde656263d80429b51017b077d9b4064ba13b01.zip qemu-bbde656263d80429b51017b077d9b4064ba13b01.tar.gz qemu-bbde656263d80429b51017b077d9b4064ba13b01.tar.bz2 | |
migration/rdma: Fix save_page method to fail on polling error
qemu_rdma_save_page() reports polling error with error_report(), then
succeeds anyway. This is because the variable holding the polling
status *shadows* the variable the function returns. The latter
remains zero.
Broken since day one, and duplicated more recently.
Fixes: 2da776db4846 (rdma: core logic)
Fixes: b390afd8c50b (migration/rdma: Fix out of order wrid)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Message-ID: <20230921121312.1301864-2-armbru@redhat.com>
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/rdma.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/migration/rdma.c b/migration/rdma.c index a2a3db3..3915d1d 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -3282,7 +3282,8 @@ static size_t qemu_rdma_save_page(QEMUFile *f, */ while (1) { uint64_t wr_id, wr_id_in; - int ret = qemu_rdma_poll(rdma, rdma->recv_cq, &wr_id_in, NULL); + ret = qemu_rdma_poll(rdma, rdma->recv_cq, &wr_id_in, NULL); + if (ret < 0) { error_report("rdma migration: polling error! %d", ret); goto err; @@ -3297,7 +3298,8 @@ static size_t qemu_rdma_save_page(QEMUFile *f, while (1) { uint64_t wr_id, wr_id_in; - int ret = qemu_rdma_poll(rdma, rdma->send_cq, &wr_id_in, NULL); + ret = qemu_rdma_poll(rdma, rdma->send_cq, &wr_id_in, NULL); + if (ret < 0) { error_report("rdma migration: polling error! %d", ret); goto err; |