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From: Klaus Jensen <its@irrelevant.dk>
To: qemu-devel@nongnu.org
Cc: Fam Zheng <fam@euphon.net>, Kevin Wolf <kwolf@redhat.com>,
	qemu-block@nongnu.org, Klaus Jensen <k.jensen@samsung.com>,
	Maxim Levitsky <mlevitsk@redhat.com>,
	Klaus Jensen <its@irrelevant.dk>,
	Andrzej Jakowski <andrzej.jakowski@linux.intel.com>,
	Minwoo Im <minwoo.im.dev@gmail.com>,
	Keith Busch <kbusch@kernel.org>, Max Reitz <mreitz@redhat.com>
Subject: [PATCH v2 01/16] hw/block/nvme: memset preallocated requests structures
Date: Thu, 30 Jul 2020 00:06:23 +0200	[thread overview]
Message-ID: <20200729220638.344477-2-its@irrelevant.dk> (raw)
In-Reply-To: <20200729220638.344477-1-its@irrelevant.dk>

From: Klaus Jensen <k.jensen@samsung.com>

This is preparatory to subsequent patches that change how QSGs/IOVs are
handled. It is important that the qsg and iov members of the NvmeRequest
are initially zeroed.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
---
 hw/block/nvme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index a1fd1fe14ba7..25b87486ea5a 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -653,7 +653,7 @@ static void nvme_init_sq(NvmeSQueue *sq, NvmeCtrl *n, uint64_t dma_addr,
     sq->size = size;
     sq->cqid = cqid;
     sq->head = sq->tail = 0;
-    sq->io_req = g_new(NvmeRequest, sq->size);
+    sq->io_req = g_new0(NvmeRequest, sq->size);
 
     QTAILQ_INIT(&sq->req_list);
     QTAILQ_INIT(&sq->out_req_list);
-- 
2.27.0



  reply	other threads:[~2020-07-29 22:07 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-29 22:06 [PATCH v2 00/16] hw/block/nvme: dma handling and address mapping cleanup Klaus Jensen
2020-07-29 22:06 ` Klaus Jensen [this message]
2020-07-30 10:14   ` [PATCH v2 01/16] hw/block/nvme: memset preallocated requests structures Minwoo Im
2020-07-29 22:06 ` [PATCH v2 02/16] hw/block/nvme: add mapping helpers Klaus Jensen
2020-07-29 22:06 ` [PATCH v2 03/16] hw/block/nvme: replace dma_acct with blk_acct equivalent Klaus Jensen
2020-07-29 22:06 ` [PATCH v2 04/16] hw/block/nvme: remove redundant has_sg member Klaus Jensen
2020-07-30 10:15   ` Minwoo Im
2020-07-30 10:43   ` Maxim Levitsky
2020-07-29 22:06 ` [PATCH v2 05/16] hw/block/nvme: destroy request iov before reuse Klaus Jensen
2020-07-30 10:16   ` Minwoo Im
2020-07-30 10:43   ` Maxim Levitsky
2020-07-29 22:06 ` [PATCH v2 06/16] hw/block/nvme: refactor dma read/write Klaus Jensen
2020-07-29 22:06 ` [PATCH v2 07/16] hw/block/nvme: add tracing to nvme_map_prp Klaus Jensen
2020-07-30 10:17   ` Minwoo Im
2020-07-30 10:45   ` Maxim Levitsky
2020-07-29 22:06 ` [PATCH v2 08/16] hw/block/nvme: add request mapping helper Klaus Jensen
2020-07-30 10:19   ` Minwoo Im
2020-07-29 22:06 ` [PATCH v2 09/16] hw/block/nvme: verify validity of prp lists in the cmb Klaus Jensen
2020-07-29 22:06 ` [PATCH v2 10/16] hw/block/nvme: refactor request bounds checking Klaus Jensen
2020-07-29 22:06 ` [PATCH v2 11/16] hw/block/nvme: add check for mdts Klaus Jensen
2020-07-29 22:06 ` [PATCH v2 12/16] hw/block/nvme: be consistent about zeros vs zeroes Klaus Jensen
2020-07-29 22:06 ` [PATCH v2 13/16] hw/block/nvme: add ns/cmd references in NvmeRequest Klaus Jensen
2020-07-29 22:06 ` [PATCH v2 14/16] hw/block/nvme: consolidate qsg/iov clearing Klaus Jensen
2020-07-30 10:31   ` Minwoo Im
2020-07-30 11:02     ` Maxim Levitsky
2020-07-30 11:09     ` Klaus Jensen
2020-07-30 12:26       ` Minwoo Im
2020-07-29 22:06 ` [PATCH v2 15/16] hw/block/nvme: use preallocated qsg/iov in nvme_dma_prp Klaus Jensen
2020-07-30 10:29   ` Minwoo Im
2020-07-29 22:06 ` [PATCH v2 16/16] hw/block/nvme: remove explicit qsg/iov parameters Klaus Jensen
2020-07-30 10:30   ` Minwoo Im
2020-07-30 11:03   ` Maxim Levitsky
2020-08-17  6:45 ` [PATCH v2 00/16] hw/block/nvme: dma handling and address mapping cleanup Klaus Jensen

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