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hw/block/nvme: replace dma_acct with blk_acct equivalent

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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>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
This commit is contained in:
Klaus Jensen 2020-03-30 22:22:38 +02:00
parent a80b2ce682
commit 904248a53f
1 changed files with 4 additions and 1 deletions
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5
hw/block/nvme.c
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@ -637,9 +637,10 @@ 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) :
@ -647,6 +648,8 @@ 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) :