brcm2708: add linux 4.9 support

Patches from Raspberry Pi repo:
https://github.com/raspberrypi/linux/commits/rpi-4.9.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 50 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.9/0060-config-Enable-CONFIG_MEMCG-but-leave-it-disabled-due.patch b/target/linux/brcm2708/patches-4.9/0060-config-Enable-CONFIG_MEMCG-but-leave-it-disabled-due.patch
new file mode 100644
index 0000000000..2fb9aca792
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/0060-config-Enable-CONFIG_MEMCG-but-leave-it-disabled-due.patch
@@ -0,0 +1,50 @@
+From d8fe940fffef38e498beaa5bd182647452d98de9 Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 18 Dec 2013 22:16:19 +0000
+Subject: [PATCH] config: Enable CONFIG_MEMCG, but leave it disabled (due to
+ memory cost). Enable with cgroup_enable=memory.
+
+---
+ kernel/cgroup.c | 24 +++++++++++++++++++++++-
+ 1 file changed, 23 insertions(+), 1 deletion(-)
+
+--- a/kernel/cgroup.c
++++ b/kernel/cgroup.c
+@@ -5629,7 +5629,7 @@ int __init cgroup_init_early(void)
+ 	return 0;
+ }
+ 
+-static u16 cgroup_disable_mask __initdata;
++static u16 cgroup_disable_mask __initdata = 1<<0;
+ 
+ /**
+  * cgroup_init - cgroup initialization
+@@ -6166,6 +6166,28 @@ static int __init cgroup_no_v1(char *str
+ }
+ __setup("cgroup_no_v1=", cgroup_no_v1);
+ 
++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_disable_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