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Merge pull request #1199 from ijc25/cpuacct-online-offline

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Revert "sched/cpuacct: Show all possible CPUs in cpuacct output" in 4.9 kernel
This commit is contained in:
Justin Cormack 2017-02-17 13:43:15 +00:00 committed by GitHub
commit 295f352bf2
9 changed files with 73 additions and 8 deletions
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2
kernel/patches-4.9/0001-VSOCK-Only-allow-host-network-namespace-to-use-AF_VS.patch
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@ -1,7 +1,7 @@
From 3d6fce5663241a06b78e10c2b5ae298abd7a72ba Mon Sep 17 00:00:00 2001
From: Ian Campbell <ian.campbell@docker.com>
Date: Mon, 4 Apr 2016 14:50:10 +0100
Subject: [PATCH 1/8] VSOCK: Only allow host network namespace to use AF_VSOCK.
Subject: [PATCH 1/9] VSOCK: Only allow host network namespace to use AF_VSOCK.
The VSOCK addressing schema does not really lend itself to simply creating an
alternative end point address within a namespace.

2
kernel/patches-4.9/0002-hv_sock-introduce-Hyper-V-Sockets.patch
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@ -1,7 +1,7 @@
From c76fa3c421e8d424cab8a048f186fe61e0415f82 Mon Sep 17 00:00:00 2001
From: Dexuan Cui <decui@microsoft.com>
Date: Sat, 23 Jul 2016 01:35:51 +0000
Subject: [PATCH 2/8] hv_sock: introduce Hyper-V Sockets
Subject: [PATCH 2/9] hv_sock: introduce Hyper-V Sockets
Hyper-V Sockets (hv_sock) supplies a byte-stream based communication
mechanism between the host and the guest. It's somewhat like TCP over

2
kernel/patches-4.9/0003-vmbus-Don-t-spam-the-logs-with-unknown-GUIDs.patch
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@ -1,7 +1,7 @@
From 7ffe2cc44e33996ad39c2cdbf37f958691489e81 Mon Sep 17 00:00:00 2001
From: Rolf Neugebauer <rolf.neugebauer@gmail.com>
Date: Mon, 23 May 2016 18:55:45 +0100
Subject: [PATCH 3/8] vmbus: Don't spam the logs with unknown GUIDs
Subject: [PATCH 3/9] vmbus: Don't spam the logs with unknown GUIDs
With Hyper-V sockets device types are introduced on the fly. The pr_info()
then prints a message on every connection, which is way too verbose. Since

2
kernel/patches-4.9/0004-Drivers-hv-utils-Fix-the-mapping-between-host-versio.patch
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@ -1,7 +1,7 @@
From 3bc5a0bf749b3d7758c2dec93f5044480b506e5a Mon Sep 17 00:00:00 2001
From: Alex Ng <alexng@messages.microsoft.com>
Date: Sun, 6 Nov 2016 13:14:07 -0800
Subject: [PATCH 4/8] Drivers: hv: utils: Fix the mapping between host version
Subject: [PATCH 4/9] Drivers: hv: utils: Fix the mapping between host version
and protocol to use
We should intentionally declare the protocols to use for every known host

2
kernel/patches-4.9/0005-Drivers-hv-vss-Improve-log-messages.patch
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@ -1,7 +1,7 @@
From e351f71f036780c5764b81874b417da5b361473b Mon Sep 17 00:00:00 2001
From: Alex Ng <alexng@messages.microsoft.com>
Date: Sun, 6 Nov 2016 13:14:10 -0800
Subject: [PATCH 5/8] Drivers: hv: vss: Improve log messages.
Subject: [PATCH 5/9] Drivers: hv: vss: Improve log messages.
Adding log messages to help troubleshoot error cases and transaction
handling.

2
kernel/patches-4.9/0006-Drivers-hv-vss-Operation-timeouts-should-match-host-.patch
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@ -1,7 +1,7 @@
From adb4437c3ee5973a5f84864cdfb06c00b3b3c651 Mon Sep 17 00:00:00 2001
From: Alex Ng <alexng@messages.microsoft.com>
Date: Sun, 6 Nov 2016 13:14:11 -0800
Subject: [PATCH 6/8] Drivers: hv: vss: Operation timeouts should match host
Subject: [PATCH 6/9] Drivers: hv: vss: Operation timeouts should match host
expectation
Increase the timeout of backup operations. When system is under I/O load,

2
kernel/patches-4.9/0007-Drivers-hv-vmbus-Use-all-supported-IC-versions-to-ne.patch
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@ -1,7 +1,7 @@
From 3ffbfea0d7cf206fec3fbd2a090778d882ddcf83 Mon Sep 17 00:00:00 2001
From: Alex Ng <alexng@messages.microsoft.com>
Date: Sat, 28 Jan 2017 12:37:17 -0700
Subject: [PATCH 7/8] Drivers: hv: vmbus: Use all supported IC versions to
Subject: [PATCH 7/9] Drivers: hv: vmbus: Use all supported IC versions to
negotiate
Previously, we were assuming that each IC protocol version was tied to a

2
kernel/patches-4.9/0008-Drivers-hv-Log-the-negotiated-IC-versions.patch
View File

@ -1,7 +1,7 @@
From 2b6c873e6f7bde90f4d60dac6b4d933c4ed2610d Mon Sep 17 00:00:00 2001
From: Alex Ng <alexng@messages.microsoft.com>
Date: Sat, 28 Jan 2017 12:37:18 -0700
Subject: [PATCH 8/8] Drivers: hv: Log the negotiated IC versions.
Subject: [PATCH 8/9] Drivers: hv: Log the negotiated IC versions.
Log the negotiated IC versions.

65
kernel/patches-4.9/0009-Revert-sched-cpuacct-Show-all-possible-CPUs-in-cpuac.patch Normal file
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@ -0,0 +1,65 @@
From e7db8e1ad4a35b5048b803511c1425940cb7002b Mon Sep 17 00:00:00 2001
From: Ian Campbell <ian.campbell@docker.com>
Date: Fri, 17 Feb 2017 11:45:31 +0000
Subject: [PATCH 9/9] Revert "sched/cpuacct: Show all possible CPUs in cpuacct
output"
This reverts commit 5ca3726af7f66a8cc71ce4414cfeb86deb784491.
Signed-off-by: Ian Campbell <ian.campbell@docker.com>
---
kernel/sched/cpuacct.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c
index bc0b309c3f19..64d2115f3564 100644
--- a/kernel/sched/cpuacct.c
+++ b/kernel/sched/cpuacct.c
@@ -169,7 +169,7 @@ static u64 __cpuusage_read(struct cgroup_subsys_state *css,
u64 totalcpuusage = 0;
int i;
- for_each_possible_cpu(i)
+ for_each_present_cpu(i)
totalcpuusage += cpuacct_cpuusage_read(ca, i, index);
return totalcpuusage;
@@ -204,7 +204,7 @@ static int cpuusage_write(struct cgroup_subsys_state *css, struct cftype *cft,
if (val)
return -EINVAL;
- for_each_possible_cpu(cpu)
+ for_each_present_cpu(cpu)
cpuacct_cpuusage_write(ca, cpu, 0);
return 0;
@@ -217,7 +217,7 @@ static int __cpuacct_percpu_seq_show(struct seq_file *m,
u64 percpu;
int i;
- for_each_possible_cpu(i) {
+ for_each_present_cpu(i) {
percpu = cpuacct_cpuusage_read(ca, i, index);
seq_printf(m, "%llu ", (unsigned long long) percpu);
}
@@ -251,7 +251,7 @@ static int cpuacct_all_seq_show(struct seq_file *m, void *V)
seq_printf(m, " %s", cpuacct_stat_desc[index]);
seq_puts(m, "\n");
- for_each_possible_cpu(cpu) {
+ for_each_online_cpu(cpu) {
struct cpuacct_usage *cpuusage = per_cpu_ptr(ca->cpuusage, cpu);
seq_printf(m, "%d", cpu);
@@ -284,7 +284,7 @@ static int cpuacct_stats_show(struct seq_file *sf, void *v)
int stat;
memset(val, 0, sizeof(val));
- for_each_possible_cpu(cpu) {
+ for_each_online_cpu(cpu) {
u64 *cpustat = per_cpu_ptr(ca->cpustat, cpu)->cpustat;
val[CPUACCT_STAT_USER] += cpustat[CPUTIME_USER];
--
2.11.0