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-rw-r--r--sys-kernel/boest-v5.0.15/raspberrypi/0101-cgroup-Disable-cgroup-memory-by-default.patch72
1 files changed, 72 insertions, 0 deletions
diff --git a/sys-kernel/boest-v5.0.15/raspberrypi/0101-cgroup-Disable-cgroup-memory-by-default.patch b/sys-kernel/boest-v5.0.15/raspberrypi/0101-cgroup-Disable-cgroup-memory-by-default.patch
new file mode 100644
index 00000000..b63ebcab
--- /dev/null
+++ b/sys-kernel/boest-v5.0.15/raspberrypi/0101-cgroup-Disable-cgroup-memory-by-default.patch
@@ -0,0 +1,72 @@
+From 1b40bd99ff08e1b6fa6eb376961f5279867a4d3e Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 27 Nov 2017 17:14:54 +0000
+Subject: [PATCH 101/194] 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 f84bf28f36ba..1c8992ef52ac 100644
+--- a/kernel/cgroup/cgroup.c
++++ b/kernel/cgroup/cgroup.c
+@@ -5366,6 +5366,8 @@ 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
+@@ -5406,6 +5408,12 @@ 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 =
+@@ -5789,6 +5797,28 @@ 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);
++
+ void __init __weak enable_debug_cgroup(void) { }
+
+ static int __init enable_cgroup_debug(char *str)