diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0089-cgroup-Disable-cgroup-memory-by-default.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0089-cgroup-Disable-cgroup-memory-by-default.patch | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0089-cgroup-Disable-cgroup-memory-by-default.patch b/target/linux/bcm27xx/patches-5.4/950-0089-cgroup-Disable-cgroup-memory-by-default.patch deleted file mode 100644 index d4818b2239..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0089-cgroup-Disable-cgroup-memory-by-default.patch +++ /dev/null @@ -1,85 +0,0 @@ -From 2b13c54592135b6fab269517ed687fa9f80bf8e5 Mon Sep 17 00:00:00 2001 -From: Phil Elwell <phil@raspberrypi.org> -Date: Mon, 27 Nov 2017 17:14:54 +0000 -Subject: [PATCH] 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 | 38 ++++++++++++++++++++++++++++++++++++++ - 1 file changed, 38 insertions(+) - ---- a/kernel/cgroup/cgroup.c -+++ b/kernel/cgroup/cgroup.c -@@ -5721,6 +5721,9 @@ int __init cgroup_init_early(void) - return 0; - } - -+static u16 cgroup_enable_mask __initdata; -+static int __init cgroup_disable(char *str); -+ - /** - * cgroup_init - cgroup initialization - * -@@ -5759,6 +5762,12 @@ int __init cgroup_init(void) - - mutex_unlock(&cgroup_mutex); - -+ /* -+ * Apply an implicit disable, knowing that an explicit enable will -+ * prevent if from doing anything. -+ */ -+ cgroup_disable("memory"); -+ - for_each_subsys(ss, ssid) { - if (ss->early_init) { - struct cgroup_subsys_state *css = -@@ -6168,6 +6177,10 @@ static int __init cgroup_disable(char *s - strcmp(token, ss->legacy_name)) - continue; - -+ /* An explicit cgroup_enable overrides a disable */ -+ if (cgroup_enable_mask & (1 << i)) -+ continue; -+ - static_branch_disable(cgroup_subsys_enabled_key[i]); - pr_info("Disabling %s control group subsystem\n", - ss->name); -@@ -6177,6 +6190,31 @@ static int __init cgroup_disable(char *s - } - __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; -+ static_branch_enable(cgroup_subsys_enabled_key[i]); -+ pr_info("Enabling %s control group subsystem\n", -+ ss->name); -+ } -+ } -+ return 1; -+} -+__setup("cgroup_enable=", cgroup_enable); -+ - void __init __weak enable_debug_cgroup(void) { } - - static int __init enable_cgroup_debug(char *str) |