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RPI kernel 4.19 support

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Ycarus 2019-04-22 17:10:09 +02:00
parent e79d4c1771
commit e253715ce5
432 changed files with 335303 additions and 0 deletions
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75
root/target/linux/brcm2708/patches-4.19/0106-cgroup-Disable-cgroup-memory-by-default.patch Normal file
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@ -0,0 +1,75 @@
From 500f00bf8f24cd40e40578bb4e1c1aa17f6a6261 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Mon, 27 Nov 2017 17:14:54 +0000
Subject: [PATCH 106/432] cgroup: Disable cgroup "memory" by default
Some Raspberry Pis have limited RAM and most users won't use the
cgroup memory support so it is disabled by default. Enable with:
cgroup_enable=memory
See: https://github.com/raspberrypi/linux/issues/1950
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
kernel/cgroup/cgroup.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 63dae7e0ccae..3beaab75b081 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -5290,6 +5290,8 @@ int __init cgroup_init_early(void)
}
static u16 cgroup_disable_mask __initdata;
+static u16 cgroup_enable_mask __initdata;
+static int __init cgroup_disable(char *str);
/**
* cgroup_init - cgroup initialization
@@ -5330,6 +5332,12 @@ int __init cgroup_init(void)
mutex_unlock(&cgroup_mutex);
+ /* Apply an implicit disable... */
+ cgroup_disable("memory");
+
+ /* ...knowing that an explicit enable will override it. */
+ cgroup_disable_mask &= ~cgroup_enable_mask;
+
for_each_subsys(ss, ssid) {
if (ss->early_init) {
struct cgroup_subsys_state *css =
@@ -5713,6 +5721,28 @@ static int __init cgroup_disable(char *str)
}
__setup("cgroup_disable=", cgroup_disable);
+static int __init cgroup_enable(char *str)
+{
+ struct cgroup_subsys *ss;
+ char *token;
+ int i;
+
+ while ((token = strsep(&str, ",")) != NULL) {
+ if (!*token)
+ continue;
+
+ for_each_subsys(ss, i) {
+ if (strcmp(token, ss->name) &&
+ strcmp(token, ss->legacy_name))
+ continue;
+
+ cgroup_enable_mask |= 1 << i;
+ }
+ }
+ return 1;
+}
+__setup("cgroup_enable=", cgroup_enable);
+
/**
* css_tryget_online_from_dir - get corresponding css from a cgroup dentry
* @dentry: directory dentry of interest
--
2.19.1