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[PATCH 03/16] hw/block/nvme: replace dma_acct with blk_acct equivalent
From: |
Klaus Jensen |
Subject: |
[PATCH 03/16] hw/block/nvme: replace dma_acct with blk_acct equivalent |
Date: |
Mon, 20 Jul 2020 13:37:35 +0200 |
From: Klaus Jensen <k.jensen@samsung.com>
The QSG isn't always initialized, so accounting could be wrong. Issue a
call to blk_acct_start instead with the size taken from the QSG or IOV
depending on the kind of I/O.
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
---
hw/block/nvme.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 9b1a080cdc70..cb236d1c8c46 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -620,9 +620,10 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns,
NvmeCmd *cmd,
return NVME_INVALID_FIELD | NVME_DNR;
}
- dma_acct_start(n->conf.blk, &req->acct, &req->qsg, acct);
if (req->qsg.nsg > 0) {
req->has_sg = true;
+ block_acct_start(blk_get_stats(n->conf.blk), &req->acct, req->qsg.size,
+ acct);
req->aiocb = is_write ?
dma_blk_write(n->conf.blk, &req->qsg, data_offset,
BDRV_SECTOR_SIZE,
nvme_rw_cb, req) :
@@ -630,6 +631,8 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace *ns,
NvmeCmd *cmd,
nvme_rw_cb, req);
} else {
req->has_sg = false;
+ block_acct_start(blk_get_stats(n->conf.blk), &req->acct, req->iov.size,
+ acct);
req->aiocb = is_write ?
blk_aio_pwritev(n->conf.blk, data_offset, &req->iov, 0, nvme_rw_cb,
req) :
--
2.27.0