forked from pool/systemd
Dirk Mueller
00bec688d4
Backports a patch from v230 to allow for systemd.unified_cgroup_hierarchy to be supported on 4.4 and later kernels. boo#989276 OBS-URL: https://build.opensuse.org/request/show/411397 OBS-URL: https://build.opensuse.org/package/show/Base:System/systemd?expand=0&rev=941
88 lines
3.8 KiB
Diff
88 lines
3.8 KiB
Diff
commit 099619957a0d9ae0e6e5e221493e40fb8fc2cd81
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Author: Alban Crequy <alban@kinvolk.io>
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Date: Mon Dec 7 01:10:50 2015 +0100
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cgroup2: use new fstype for unified hierarchy
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Since Linux v4.4-rc1, __DEVEL__sane_behavior does not exist anymore and
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is replaced by a new fstype "cgroup2".
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With this patch, systemd no longer supports the old (unstable) way of
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doing unified hierarchy with __DEVEL__sane_behavior and systemd now
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requires Linux v4.4 for unified hierarchy.
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Non-unified hierarchy is still the default and is unchanged by this
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patch.
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https://github.com/torvalds/linux/commit/67e9c74b8a873408c27ac9a8e4c1d1c8d72c93ff
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Upstream-patch: 099619957a0d9ae0e6e5e221493e40fb8fc2cd81
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diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
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index 56c1fcaab9b2..5124b5bf93ad 100644
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--- a/src/basic/cgroup-util.c
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+++ b/src/basic/cgroup-util.c
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@@ -2129,7 +2129,7 @@ int cg_unified(void) {
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if (statfs("/sys/fs/cgroup/", &fs) < 0)
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return -errno;
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- if (F_TYPE_EQUAL(fs.f_type, CGROUP_SUPER_MAGIC))
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+ if (F_TYPE_EQUAL(fs.f_type, CGROUP2_SUPER_MAGIC))
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unified_cache = true;
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else if (F_TYPE_EQUAL(fs.f_type, TMPFS_MAGIC))
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unified_cache = false;
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diff --git a/src/basic/missing.h b/src/basic/missing.h
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index 034e334e6626..66cd5921adf0 100644
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--- a/src/basic/missing.h
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+++ b/src/basic/missing.h
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@@ -437,6 +437,10 @@ struct btrfs_ioctl_quota_ctl_args {
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#define CGROUP_SUPER_MAGIC 0x27e0eb
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#endif
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+#ifndef CGROUP2_SUPER_MAGIC
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+#define CGROUP2_SUPER_MAGIC 0x63677270
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+#endif
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+
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#ifndef TMPFS_MAGIC
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#define TMPFS_MAGIC 0x01021994
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#endif
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diff --git a/src/core/mount-setup.c b/src/core/mount-setup.c
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index de1a361cc4c5..32fe51c67ea3 100644
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--- a/src/core/mount-setup.c
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+++ b/src/core/mount-setup.c
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@@ -94,7 +94,7 @@ static const MountPoint mount_table[] = {
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#endif
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{ "tmpfs", "/run", "tmpfs", "mode=755", MS_NOSUID|MS_NODEV|MS_STRICTATIME,
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NULL, MNT_FATAL|MNT_IN_CONTAINER },
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- { "cgroup", "/sys/fs/cgroup", "cgroup", "__DEVEL__sane_behavior", MS_NOSUID|MS_NOEXEC|MS_NODEV,
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+ { "cgroup", "/sys/fs/cgroup", "cgroup2", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
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cg_is_unified_wanted, MNT_FATAL|MNT_IN_CONTAINER },
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{ "tmpfs", "/sys/fs/cgroup", "tmpfs", "mode=755", MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_STRICTATIME,
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cg_is_legacy_wanted, MNT_FATAL|MNT_IN_CONTAINER },
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diff --git a/src/nspawn/nspawn-cgroup.c b/src/nspawn/nspawn-cgroup.c
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index 9f9a4759d1ca..53a7ee713427 100644
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--- a/src/nspawn/nspawn-cgroup.c
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+++ b/src/nspawn/nspawn-cgroup.c
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@@ -94,7 +94,7 @@ int sync_cgroup(pid_t pid, bool unified_requested) {
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if (unified)
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r = mount("cgroup", tree, "cgroup", MS_NOSUID|MS_NOEXEC|MS_NODEV, "none,name=systemd,xattr");
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else
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- r = mount("cgroup", tree, "cgroup", MS_NOSUID|MS_NOEXEC|MS_NODEV, "__DEVEL__sane_behavior");
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+ r = mount("cgroup", tree, "cgroup2", MS_NOSUID|MS_NOEXEC|MS_NODEV, NULL);
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if (r < 0) {
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r = log_error_errno(errno, "Failed to mount unified hierarchy: %m");
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goto finish;
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diff --git a/src/nspawn/nspawn-mount.c b/src/nspawn/nspawn-mount.c
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index 70cca1527876..64cb6b3ce306 100644
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--- a/src/nspawn/nspawn-mount.c
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+++ b/src/nspawn/nspawn-mount.c
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@@ -750,7 +750,7 @@ static int mount_unified_cgroups(const char *dest) {
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return -EINVAL;
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}
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- if (mount("cgroup", p, "cgroup", MS_NOSUID|MS_NOEXEC|MS_NODEV, "__DEVEL__sane_behavior") < 0)
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+ if (mount("cgroup", p, "cgroup2", MS_NOSUID|MS_NOEXEC|MS_NODEV, NULL) < 0)
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return log_error_errno(errno, "Failed to mount unified cgroup hierarchy to %s: %m", p);
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return 0;
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