* [RESENT PATCH V2] nvme/core:disable streams when get stream params failed
@ 2020-05-13 8:18 Wu Bo
2020-05-14 15:12 ` Christoph Hellwig
0 siblings, 1 reply; 2+ messages in thread
From: Wu Bo @ 2020-05-13 8:18 UTC (permalink / raw)
To: kbusch, axboe, hch, sagi
Cc: linfeilong, wubo40, linux-kernel, linux-nvme, liuzhiqiang26
After enable nvme streams, then if get stream params failed,
We should disable streams before return error in
nvme_configure_directives() function.
Signed-off-by: Wu Bo <wubo40@huawei.com>
---
drivers/nvme/host/core.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index f3c037f..29bef53 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -553,19 +553,22 @@ static int nvme_configure_directives(struct nvme_ctrl *ctrl)
ret = nvme_get_stream_params(ctrl, &s, NVME_NSID_ALL);
if (ret)
- return ret;
+ goto out_disable_stream;
ctrl->nssa = le16_to_cpu(s.nssa);
if (ctrl->nssa < BLK_MAX_WRITE_HINTS - 1) {
dev_info(ctrl->device, "too few streams (%u) available\n",
ctrl->nssa);
- nvme_disable_streams(ctrl);
- return 0;
+ goto out_disable_stream;
}
ctrl->nr_streams = min_t(unsigned, ctrl->nssa, BLK_MAX_WRITE_HINTS - 1);
dev_info(ctrl->device, "Using %u streams\n", ctrl->nr_streams);
return 0;
+
+out_disable_stream:
+ nvme_disable_streams(ctrl);
+ return ret;
}
/*
--
1.8.3.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [RESENT PATCH V2] nvme/core:disable streams when get stream params failed
2020-05-13 8:18 [RESENT PATCH V2] nvme/core:disable streams when get stream params failed Wu Bo
@ 2020-05-14 15:12 ` Christoph Hellwig
0 siblings, 0 replies; 2+ messages in thread
From: Christoph Hellwig @ 2020-05-14 15:12 UTC (permalink / raw)
To: Wu Bo
Cc: linfeilong, sagi, linux-kernel, linux-nvme, liuzhiqiang26, axboe,
kbusch, hch
Thanks,
applied to nvme-5.8.
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linux-nvme mailing list
linux-nvme@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-nvme
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-05-14 15:12 ` Christoph Hellwig
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