From: "Andrea Parri (Microsoft)" <parri.andrea@gmail.com>
To: "K . Y . Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>,
Michael Kelley <mikelley@microsoft.com>
Cc: linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org,
"Andrea Parri (Microsoft)" <parri.andrea@gmail.com>
Subject: [PATCH 3/8] Drivers: hv: vmbus: Replace cpumask_test_cpu(, cpu_online_mask) with cpu_online()
Date: Wed, 17 Jun 2020 18:46:37 +0200 [thread overview]
Message-ID: <20200617164642.37393-4-parri.andrea@gmail.com> (raw)
In-Reply-To: <20200617164642.37393-1-parri.andrea@gmail.com>
A slight improvement in readability, and this does also remove one
memory access when NR_CPUS == 1! ;-)
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
---
drivers/hv/vmbus_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index c3205f40d1415..452c14c656e2a 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1702,7 +1702,7 @@ static ssize_t target_cpu_store(struct vmbus_channel *channel,
/* No CPUs should come up or down during this. */
cpus_read_lock();
- if (!cpumask_test_cpu(target_cpu, cpu_online_mask)) {
+ if (!cpu_online(target_cpu)) {
cpus_read_unlock();
return -EINVAL;
}
--
2.25.1
next prev parent reply other threads:[~2020-06-17 16:49 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-17 16:46 [PATCH 0/8] Drivers: hv: vmbus: Miscellaneous cleanups Andrea Parri (Microsoft)
2020-06-17 16:46 ` [PATCH 1/8] Drivers: hv: vmbus: Remove the target_vp field from the vmbus_channel struct Andrea Parri (Microsoft)
2020-06-18 15:24 ` Michael Kelley
2020-06-17 16:46 ` [PATCH 2/8] Drivers: hv: vmbus: Remove the numa_node " Andrea Parri (Microsoft)
2020-06-18 15:26 ` Michael Kelley
2020-06-17 16:46 ` Andrea Parri (Microsoft) [this message]
2020-06-18 15:27 ` [PATCH 3/8] Drivers: hv: vmbus: Replace cpumask_test_cpu(, cpu_online_mask) with cpu_online() Michael Kelley
2020-06-17 16:46 ` [PATCH 4/8] Drivers: hv: vmbus: Remove unnecessary channel->lock critical sections (sc_list readers) Andrea Parri (Microsoft)
2020-06-18 15:29 ` Michael Kelley
2020-06-17 16:46 ` [PATCH 5/8] Drivers: hv: vmbus: Use channel_mutex in channel_vp_mapping_show() Andrea Parri (Microsoft)
2020-06-18 18:31 ` Michael Kelley
2020-06-17 16:46 ` [PATCH 6/8] Drivers: hv: vmbus: Remove unnecessary channel->lock critical sections (sc_list updaters) Andrea Parri (Microsoft)
2020-06-18 18:32 ` Michael Kelley
2020-06-17 16:46 ` [PATCH 7/8] scsi: storvsc: Introduce the per-storvsc_device spinlock Andrea Parri (Microsoft)
2020-06-18 18:34 ` Michael Kelley
2020-06-19 16:01 ` Wei Liu
2020-06-19 16:18 ` Andrea Parri
2020-06-20 2:58 ` Martin K. Petersen
2020-06-20 9:15 ` Wei Liu
2020-06-17 16:46 ` [PATCH 8/8] Drivers: hv: vmbus: Remove the lock field from the vmbus_channel struct Andrea Parri (Microsoft)
2020-06-18 18:35 ` Michael Kelley
2020-06-19 15:39 ` [PATCH 0/8] Drivers: hv: vmbus: Miscellaneous cleanups Wei Liu
2020-06-19 15:56 ` Wei Liu
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