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