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| author | Andrea Parri (Microsoft) <parri.andrea@gmail.com> | 2020-06-17 18:46:36 +0200 |
|---|---|---|
| committer | Wei Liu <wei.liu@kernel.org> | 2020-06-19 15:38:15 +0000 |
| commit | 458d090fbad59d1f849ee15e78d0471784d428b6 (patch) | |
| tree | 186a8ead7ce1ce2554b084d841afd0bc1aefb549 | |
| parent | 5bf74682118b3003c8f9b0b0ec596e473fc6eb82 (diff) | |
| download | linux-458d090fbad59d1f849ee15e78d0471784d428b6.tar.bz2 | |
Drivers: hv: vmbus: Remove the numa_node field from the vmbus_channel struct
The field is read only in numa_node_show() and it is already stored twice
(after a call to cpu_to_node()) in target_cpu_store() and init_vp_index();
there is no need to "cache" its value in the channel data structure.
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Link: https://lore.kernel.org/r/20200617164642.37393-3-parri.andrea@gmail.com
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>
| -rw-r--r-- | drivers/hv/channel_mgmt.c | 2 | ||||
| -rw-r--r-- | drivers/hv/vmbus_drv.c | 3 | ||||
| -rw-r--r-- | include/linux/hyperv.h | 1 |
3 files changed, 1 insertions, 5 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 278e39221807..36dd8b6c544a 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -702,7 +702,6 @@ static void init_vp_index(struct vmbus_channel *channel) * In case alloc_cpumask_var() fails, bind it to * VMBUS_CONNECT_CPU. */ - channel->numa_node = cpu_to_node(VMBUS_CONNECT_CPU); channel->target_cpu = VMBUS_CONNECT_CPU; if (perf_chn) hv_set_alloced_cpu(VMBUS_CONNECT_CPU); @@ -719,7 +718,6 @@ static void init_vp_index(struct vmbus_channel *channel) continue; break; } - channel->numa_node = numa_node; alloced_mask = &hv_context.hv_numa_map[numa_node]; if (cpumask_weight(alloced_mask) == diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index d2ddb46f1359..de44d76c8ace 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -226,7 +226,7 @@ static ssize_t numa_node_show(struct device *dev, if (!hv_dev->channel) return -ENODEV; - return sprintf(buf, "%d\n", hv_dev->channel->numa_node); + return sprintf(buf, "%d\n", cpu_to_node(hv_dev->channel->target_cpu)); } static DEVICE_ATTR_RO(numa_node); #endif @@ -1778,7 +1778,6 @@ static ssize_t target_cpu_store(struct vmbus_channel *channel, */ channel->target_cpu = target_cpu; - channel->numa_node = cpu_to_node(target_cpu); /* See init_vp_index(). */ if (hv_is_perf_channel(channel)) diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 738efdb194b0..690394b79d72 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -812,7 +812,6 @@ struct vmbus_channel { * the earlier behavior. */ u32 target_cpu; - int numa_node; /* * Support for sub-channels. For high performance devices, * it will be useful to have multiple sub-channels to support |