init: fix mount flags for files (e.g., /etc/localtime
)
#1041
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Fixes #1029.
Mount points may have additional flags (e.g.,
nodev
,nosuid
) to check for. However, the functionget_locked_mount_flags
exits immediately and returns an empty flag if the mount point is a file (e.g.,/etc/localtime
). If the original mount point is a file and it has any "locked" flags, then the file will fail to bind mount as read-only without those "locked" flags (in rootless mode).I don't think it is necessary to exclude files when checking the mount flags. This PR removed that checking and updated the variable names to reflect the change.