File hw-block-nvme-consider-metadata-read-aio.patch of Package qemu

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File hw-block-nvme-consider-metadata-read-aio.patch of Package qemu (Revision a1b95cc6fd9976a8eddff0a50a150c89)

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From: Gollu Appalanaidu <anaidu.gollu@samsung.com>
Date: Fri, 16 Apr 2021 12:52:33 +0530
Subject: hw/block/nvme: consider metadata read aio return value in compare

Git-commit: b4a983239343efd0a2d8a6cdf0690d0d707ec4ea

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: 0a384f923f51 ("hw/block/nvme: add compare command")
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Jose R. Ziviani <jziviani@suse.de>
---
 hw/block/nvme.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 5fe082ec34c57471fab0fa7e8a0c..ba90053b63ed4884deb98d62b6d6 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -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);

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File hw-block-nvme-consider-metadata-read-aio.patch of Package qemu (Revision a1b95cc6fd9976a8eddff0a50a150c89)

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