SymbX/systemd
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cgroup-util: check for SYSFS_MAGIC when detecting cgroup format

Browse Source 
When nothing at all is mounted at /sys/fs/cgroup, the fs.f_type is
SYSFS_MAGIC (0x62656572) which results in the confusing debug log:

"Unknown filesystem type 62656572 mounted on /sys/fs/cgroup."

Instead, if the f_type is SYSFS_MAGIC, a more accurate message is:

"No filesystem is currently mounted on /sys/fs/cgroup."
This commit is contained in:
Dan Streetman
2020-04-25 10:00:43 +02:00
committed by Zbigniew Jędrzejewski-Szmek
parent 84cb27086f
commit 0bc5f001db
1 changed files with 3 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/basic/cgroup-util.c
+3
View File
@@ -2010,6 +2010,9 @@ int cg_unified_cached(bool flush) {
unified_cache = CGROUP_UNIFIED_NONE;
}
}
} else if (F_TYPE_EQUAL(fs.f_type, SYSFS_MAGIC)) {
return log_debug_errno(SYNTHETIC_ERRNO(ENOMEDIUM),
"No filesystem is currently mounted on /sys/fs/cgroup.");
} else
return log_debug_errno(SYNTHETIC_ERRNO(ENOMEDIUM),
"Unknown filesystem type %llx mounted on /sys/fs/cgroup.",