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5ecc0cfd6f
Changelog since 5.4.24 mentions CVE-2019-19769, CVE-2020-8648, CVE-2020-8649 and CVE-2020-8647. Removed upstreamed: generic: 507-v5.6-iio-chemical-sps30-fix-missing-triggered-buffer-depe.patch generic: 600-ipv6-addrconf-call-ipv6_mc_up-for-non-Ethernet-inter.patch bcm27xx: 950-0435-ASoC-pcm512x-Fix-unbalanced-regulator-enable-call-in.patch ipq806x: 701-stmmac-fix-notifier-registration.patch lantiq: 002-pinctrl-falcon-fix-syntax-error.patch octeontx: 0002-net-thunderx-workaround-BGX-TX-Underflow-issue.patch Run tested: apu2, qemu-x86-64, apalis, a64-olinuxino, nbg6617 Build tested: sunxi/a53, imx6, x86/64, ipq40xx Tested-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk> [apu2] Signed-off-by: Petr Štetiar <ynezz@true.cz>
71 lines
1.8 KiB
Diff
71 lines
1.8 KiB
Diff
From 0f95a2f2688ff44dc7080beaa2076741a0bdf510 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Mon, 27 Nov 2017 17:14:54 +0000
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Subject: [PATCH] cgroup: Disable cgroup "memory" by default
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Some Raspberry Pis have limited RAM and most users won't use the
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cgroup memory support so it is disabled by default. Enable with:
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cgroup_enable=memory
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See: https://github.com/raspberrypi/linux/issues/1950
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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kernel/cgroup/cgroup.c | 30 ++++++++++++++++++++++++++++++
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1 file changed, 30 insertions(+)
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--- a/kernel/cgroup/cgroup.c
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+++ b/kernel/cgroup/cgroup.c
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@@ -5720,6 +5720,8 @@ int __init cgroup_init_early(void)
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}
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static u16 cgroup_disable_mask __initdata;
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+static u16 cgroup_enable_mask __initdata;
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+static int __init cgroup_disable(char *str);
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/**
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* cgroup_init - cgroup initialization
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@@ -5759,6 +5761,12 @@ int __init cgroup_init(void)
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mutex_unlock(&cgroup_mutex);
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+ /* Apply an implicit disable... */
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+ cgroup_disable("memory");
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+
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+ /* ...knowing that an explicit enable will override it. */
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+ cgroup_disable_mask &= ~cgroup_enable_mask;
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+
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for_each_subsys(ss, ssid) {
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if (ss->early_init) {
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struct cgroup_subsys_state *css =
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@@ -6178,6 +6186,28 @@ static int __init cgroup_disable(char *s
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}
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__setup("cgroup_disable=", cgroup_disable);
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+static int __init cgroup_enable(char *str)
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+{
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+ struct cgroup_subsys *ss;
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+ char *token;
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+ int i;
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+
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+ while ((token = strsep(&str, ",")) != NULL) {
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+ if (!*token)
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+ continue;
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+
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+ for_each_subsys(ss, i) {
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+ if (strcmp(token, ss->name) &&
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+ strcmp(token, ss->legacy_name))
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+ continue;
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+
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+ cgroup_enable_mask |= 1 << i;
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+ }
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+ }
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+ return 1;
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+}
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+__setup("cgroup_enable=", cgroup_enable);
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+
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void __init __weak enable_debug_cgroup(void) { }
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static int __init enable_cgroup_debug(char *str)
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