From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Sun, 6 Nov 2022 21:49:47 +0000 (+0100)
Subject: mountpoint-util: tmpfs supports uid=/gid= mount options
X-Git-Tag: v253-rc1~588^2~1
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7d4f00c88c65532bf66d20b3ec498b5bfaa621d2;p=thirdparty%2Fsystemd.git

mountpoint-util: tmpfs supports uid=/gid= mount options

As tmpfs(5) says, both uid= and gid= are supported since kernel 2.5.7 and
the mount utility seems to agree:

```
# stat -c "%U:%G" mnt
root:root
# mount -o uid=testuser,gid=testuser -t tmpfs tmpfs mnt
# stat -c "%U:%G" mnt
testuser:testuser
```

However, systemd-mount currently complains:

```
# systemd-mount --owner testuser -t tmpfs tmpfs mnt
File system type tmpfs is not known to support uid=/gid=, refusing.
```
---

diff --git a/src/basic/mountpoint-util.c b/src/basic/mountpoint-util.c
index dc682688a7c..8292869e7c9 100644
--- a/src/basic/mountpoint-util.c
+++ b/src/basic/mountpoint-util.c
@@ -480,6 +480,7 @@ bool fstype_can_uid_gid(const char *fstype) {
                           "iso9660",
                           "msdos",
                           "ntfs",
+                          "tmpfs",
                           "vfat");
 }