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hw/block/nvme: consider metadata read aio return value in compare 

Currently in compare command metadata aio read blk_aio_preadv return
value ignored. Consider it and complete the block accounting.

Signed-off-by: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Fixes: 0a384f923f ("hw/block/nvme: add compare command")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Gollu Appalanaidu 2021-04-16 12:52:33 +05:30 committed by Klaus Jensen
parent 9a31c61583
commit b4a9832393
1 changed files with 11 additions and 0 deletions
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11
hw/block/nvme.c
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@ -2369,10 +2369,19 @@ static void nvme_compare_mdata_cb(void *opaque, int ret)
uint32_t reftag = le32_to_cpu(rw->reftag);
struct nvme_compare_ctx *ctx = req->opaque;
g_autofree uint8_t *buf = NULL;
BlockBackend *blk = ns->blkconf.blk;
BlockAcctCookie *acct = &req->acct;
BlockAcctStats *stats = blk_get_stats(blk);
uint16_t status = NVME_SUCCESS;
trace_pci_nvme_compare_mdata_cb(nvme_cid(req));
if (ret) {
block_acct_failed(stats, acct);
nvme_aio_err(req, ret);
goto out;
}
buf = g_malloc(ctx->mdata.iov.size);
status = nvme_bounce_mdata(n, buf, ctx->mdata.iov.size,
@ -2421,6 +2430,8 @@ static void nvme_compare_mdata_cb(void *opaque, int ret)
goto out;
}
block_acct_done(stats, acct);
out:
qemu_iovec_destroy(&ctx->data.iov);
g_free(ctx->data.bounce);