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79cf0321dd
`IsLikelyNotMountPoint()` is an optimized version for `IsMountPoint()` which can not detect all type of mounts (anymore). The slower `IsMountPoint()` is more safe to use. This can cause a slight performance regression in the case there are many mountpoints on the system, but correctness is more important than speed while mounting. Fixes: #4633 Signed-off-by: Niels de Vos <ndevos@ibm.com>
17 lines
722 B
Go
17 lines
722 B
Go
// Package userns provides utilities to detect whether we are currently running
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// in a Linux user namespace.
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//
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// This code was migrated from [libcontainer/runc], which based its implementation
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// on code from [lcx/incus].
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//
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// [libcontainer/runc]: https://github.com/opencontainers/runc/blob/3778ae603c706494fd1e2c2faf83b406e38d687d/libcontainer/userns/userns_linux.go#L12-L49
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// [lcx/incus]: https://github.com/lxc/incus/blob/e45085dd42f826b3c8c3228e9733c0b6f998eafe/shared/util.go#L678-L700
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package userns
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// RunningInUserNS detects whether we are currently running in a Linux
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// user namespace and memoizes the result. It returns false on non-Linux
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// platforms.
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func RunningInUserNS() bool {
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return inUserNS()
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}
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