use /run instead of /dev/.run

Instead of the /dev/.run trick we have currently implemented, we decided
to move the early-boot runtime dir to /run.

An existing /var/run directory is bind-mounted to /run. If /var/run is
already a symlink, no action is taken.

An existing /var/lock directory is bind-mounted to /run/lock.
If /var/lock is already a symlink, no action is taken.

To implement the directory vs. symlink logic, we have a:
  ConditionPathIsDirectory=
now, which is used in the mount units.

Skipped mount unit in case of symlink:
  $ systemctl status var-run.mount
  var-run.mount - Runtime Directory
    Loaded: loaded (/lib/systemd/system/var-run.mount)
    Active: inactive (dead)
            start condition failed at Fri, 25 Mar 2011 04:51:41 +0100; 6min ago
     Where: /var/run
      What: /run
    CGroup: name=systemd:/system/var-run.mount

The systemd rpm needs to make sure to add something like:
  %pre
  mkdir -p -m0755 /run >/dev/null 2>&1 || :
or it needs to be added to filesystem.rpm.

Udev -git already uses /run if that exists, and is writable at bootup.
Otherwise it falls back to the current /dev/.udev.

Dracut and plymouth need to be adopted to switch from /dev/.run to run
too.

Cheers,
Kay

1 files changed, 7 insertions, 7 deletions

diff --git a/src/readahead-common.c b/src/readahead-common.c
index 990ffd4d08..fc49a33109 100644
--- a/src/readahead-common.c
+++ b/src/readahead-common.c
@@ -167,11 +167,11 @@ int open_inotify(void) {
                 return -errno;
         }
 
-        mkdir("/dev/.run/systemd", 0755);
-        mkdir("/dev/.run/systemd/readahead", 0755);
+        mkdir("/run/systemd", 0755);
+        mkdir("/run/systemd/readahead", 0755);
 
-        if (inotify_add_watch(fd, "/dev/.run/systemd/readahead", IN_CREATE) < 0) {
-                log_error("Failed to watch /dev/.run/systemd/readahead: %m");
+        if (inotify_add_watch(fd, "/run/systemd/readahead", IN_CREATE) < 0) {
+                log_error("Failed to watch /run/systemd/readahead: %m");
                 close_nointr_nofail(fd);
                 return -errno;
         }
@@ -183,10 +183,10 @@ ReadaheadShared *shared_get(void) {
         int fd;
         ReadaheadShared *m = NULL;
 
-        mkdir("/dev/.run/systemd", 0755);
-        mkdir("/dev/.run/systemd/readahead", 0755);
+        mkdir("/run/systemd", 0755);
+        mkdir("/run/systemd/readahead", 0755);
 
-        if ((fd = open("/dev/.run/systemd/readahead/shared", O_CREAT|O_RDWR|O_CLOEXEC, 0644)) < 0) {
+        if ((fd = open("/run/systemd/readahead/shared", O_CREAT|O_RDWR|O_CLOEXEC, 0644)) < 0) {
                 log_error("Failed to create shared memory segment: %m");
                 goto finish;
         }