From: minwoo.im.dev@gmail.com (Minwoo Im)
Subject: [PATCH 1/2] nvme: pci: Return -EINVAL if given nr_queue larger than nr_cpu
Date: Fri, 12 Apr 2019 00:52:38 +0900 [thread overview]
Message-ID: <20190411155239.1094-2-minwoo.im.dev@gmail.com> (raw)
In-Reply-To: <20190411155239.1094-1-minwoo.im.dev@gmail.com>
"write_queues" and "poll_queues" can be configured by module parameters
with callback queue_count_set().
This function shall return a error if given number of queue is larger
than nr_possible_cpus due to blk-mq.
Signed-off-by: Minwoo Im <minwoo.im.dev at gmail.com>
---
drivers/nvme/host/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index a90cf5d63aac..1a7f44924e0f 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -152,7 +152,7 @@ static int queue_count_set(const char *val, const struct kernel_param *kp)
if (ret)
return ret;
if (n > num_possible_cpus())
- n = num_possible_cpus();
+ return -EINVAL;
return param_set_int(val, kp);
}
--
2.17.1
next prev parent reply other threads:[~2019-04-11 15:52 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20190411155300epcas5p49adfec0820281f7c3fd918ba59d9cf7d@epcms2p1>
2019-04-11 15:52 ` [PATCH 0/2] nvme: pci: Fix queue_count parameter Minwoo Im
2019-04-11 15:52 ` Minwoo Im [this message]
2019-04-24 16:31 ` [PATCH 1/2] nvme: pci: Return -EINVAL if given nr_queue larger than nr_cpu Sagi Grimberg
2019-04-25 0:57 ` Minwoo Im
2019-04-11 15:52 ` [PATCH 2/2] nvme: pci: Do not initialize local_var Minwoo Im
2019-04-24 16:32 ` Sagi Grimberg
2019-04-24 18:05 ` Minwoo Im
2019-04-25 1:05 ` Minwoo Im
2019-04-30 15:31 ` Christoph Hellwig
2019-04-15 22:30 ` [PATCH 0/2] nvme: pci: Fix queue_count parameter Minwoo Im
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