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authorAndrea Parri (Microsoft) <parri.andrea@gmail.com>2020-04-06 03:15:11 +0300
committerWei Liu <wei.liu@kernel.org>2020-04-23 16:17:12 +0300
commit8ef4c4abbbcdcd9d4bc0fd9454df03e6dac24b73 (patch)
treeae6ca1adf3b081c09354b785148447504a7cca32 /include/linux
parent240ad77cb50d9f0a961fcb0f21e67939cf7a9c04 (diff)
downloadlinux-8ef4c4abbbcdcd9d4bc0fd9454df03e6dac24b73.tar.xz
Drivers: hv: vmbus: Remove the unused HV_LOCALIZED channel affinity logic
The logic is unused since commit 509879bdb30b8 ("Drivers: hv: Introduce a policy for controlling channel affinity"). This logic assumes that a channel target_cpu doesn't change during the lifetime of a channel, but this assumption is incompatible with the new functionality that allows changing the vCPU a channel will interrupt. Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Link: https://lore.kernel.org/r/20200406001514.19876-9-parri.andrea@gmail.com Reviewed-by: Michael Kelley <mikelley@microsoft.com> Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/hyperv.h27
1 files changed, 0 insertions, 27 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 62b2c11d0875..247356dbd742 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -689,11 +689,6 @@ union hv_connection_id {
} u;
};
-enum hv_numa_policy {
- HV_BALANCED = 0,
- HV_LOCALIZED,
-};
-
enum vmbus_device_type {
HV_IDE = 0,
HV_SCSI,
@@ -808,10 +803,6 @@ struct vmbus_channel {
u32 target_vp;
/* The corresponding CPUID in the guest */
u32 target_cpu;
- /*
- * State to manage the CPU affiliation of channels.
- */
- struct cpumask alloced_cpus_in_node;
int numa_node;
/*
* Support for sub-channels. For high performance devices,
@@ -898,18 +889,6 @@ struct vmbus_channel {
*/
bool low_latency;
- /*
- * NUMA distribution policy:
- * We support two policies:
- * 1) Balanced: Here all performance critical channels are
- * distributed evenly amongst all the NUMA nodes.
- * This policy will be the default policy.
- * 2) Localized: All channels of a given instance of a
- * performance critical service will be assigned CPUs
- * within a selected NUMA node.
- */
- enum hv_numa_policy affinity_policy;
-
bool probe_done;
/*
@@ -965,12 +944,6 @@ static inline bool is_sub_channel(const struct vmbus_channel *c)
return c->offermsg.offer.sub_channel_index != 0;
}
-static inline void set_channel_affinity_state(struct vmbus_channel *c,
- enum hv_numa_policy policy)
-{
- c->affinity_policy = policy;
-}
-
static inline void set_channel_read_mode(struct vmbus_channel *c,
enum hv_callback_mode mode)
{