From: Klaus Jensen <k.jen...@samsung.com> Even if the host is somehow using compare to do compare-and-write, the host should be notified immediately about the compare failure and not have to wait for the driver to potentially retry the command.
Fixes: 0a384f923f51 ("hw/block/nvme: add compare command") Reported-by: Jim Harris <james.r.har...@intel.com> Signed-off-by: Klaus Jensen <k.jen...@samsung.com> --- hw/nvme/ctrl.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index 291009545f03..8b7be1420912 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -2378,7 +2378,7 @@ static void nvme_compare_mdata_cb(void *opaque, int ret) for (bufp = buf; mbufp < end; bufp += ns->lbaf.ms, mbufp += ns->lbaf.ms) { if (memcmp(bufp + pil, mbufp + pil, ns->lbaf.ms - pil)) { - req->status = NVME_CMP_FAILURE; + req->status = NVME_CMP_FAILURE | NVME_DNR; goto out; } } @@ -2387,7 +2387,7 @@ static void nvme_compare_mdata_cb(void *opaque, int ret) } if (memcmp(buf, ctx->mdata.bounce, ctx->mdata.iov.size)) { - req->status = NVME_CMP_FAILURE; + req->status = NVME_CMP_FAILURE | NVME_DNR; goto out; } @@ -2436,7 +2436,7 @@ static void nvme_compare_data_cb(void *opaque, int ret) } if (memcmp(buf, ctx->data.bounce, ctx->data.iov.size)) { - req->status = NVME_CMP_FAILURE; + req->status = NVME_CMP_FAILURE | NVME_DNR; goto out; } -- 2.39.2