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When we have a structure like this:
/bin -> /usr/bin
/usr is a mount point
Then path_is_mount_point("/bin", AT_SYMLINK_FOLLOW) needs to look at the pair
/usr/bin and /usr, not at the pair / and /usr/bin, as the latter have different
mount IDs. But we only want to consider the base name, not any parent.
Thus we have to resolve the given path first to get the real parent when
allowing symlinks.
Bug: https://github.com/systemd/systemd/issues/61
systemd - System and Service Manager
Details
- General information about systemd can be found in the systemd Wiki
- Information about build requirements are provided in the README file