Accepting request 411397 from home:cyphar:branches:Base:System

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

systemd-230-cgroup2-use-new-fstype-for-unified-hierarchy.patch

@@ -0,0 +1,87 @@
+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;

systemd.changes

@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Jul 17 03:41:05 UTC 2016 - asarai@suse.com
+
+- Backport unified_cgroup_hierarchy fix for Linux >= 4.4. boo#989276
+  + systemd-230-cgroup2-use-new-fstype-for-unified-hierarchy.patch
+
 -------------------------------------------------------------------
 Sat Jun 18 16:17:36 UTC 2016 - arvidjaar@gmail.com
 

systemd.spec

@@ -256,6 +256,8 @@ Patch527:       0001-core-fix-bus-name-synchronization-after-daemon-reloa.patch
 Patch528:       0001-core-re-sync-bus-name-list-after-deserializing-durin.patch
 # PATCH-FIX-UPSTREAM -- fixed after 228
 Patch529:       0001-systemctl-pid1-do-not-warn-about-missing-install-inf.patch
+# PATCH-FIX-UPSTREAM -- fixed after 320
+Patch530:       systemd-230-cgroup2-use-new-fstype-for-unified-hierarchy.patch
 
 # UDEV PATCHES
 # ============
@@ -602,6 +604,7 @@ cp %{SOURCE7} m4/
 %patch527 -p1
 %patch528 -p1
 %patch529 -p1
+%patch530 -p1
 
 # udev patches
 %patch1002 -p1