diff options
| author | Alban Crequy <alban@kinvolk.io> | 2015-12-07 01:10:50 +0100 |
|---|---|---|
| committer | Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> | 2016-03-26 12:05:29 -0400 |
| commit | 099619957a0d9ae0e6e5e221493e40fb8fc2cd81 (patch) | |
| tree | 5fb572958a5cecf98821f08a9b3bbd787038975c | |
| parent | 09541e49ebd17b41482e447dd8194942f39788c0 (diff) | |
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
| -rw-r--r-- | src/basic/cgroup-util.c | 2 | ||||
| -rw-r--r-- | src/basic/missing.h | 4 | ||||
| -rw-r--r-- | src/core/mount-setup.c | 2 | ||||
| -rw-r--r-- | src/nspawn/nspawn-cgroup.c | 2 | ||||
| -rw-r--r-- | src/nspawn/nspawn-mount.c | 2 |
5 files changed, 8 insertions, 4 deletions
diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c index 56c1fcaab9..5124b5bf93 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 034e334e66..66cd5921ad 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 de1a361cc4..32fe51c67e 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 9f9a4759d1..53a7ee7134 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 70cca15278..64cb6b3ce3 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; |