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Make note of work on thread safety #485

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5 changes: 5 additions & 0 deletions README.md
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Expand Up @@ -20,6 +20,11 @@ contains a pointer is *not* safe to send across threads. Providing an `unsafe
impl Send {}` for any data structure provided by libcryptsetup-rs that is not `Send`
may result in undefined behavior.

There is an active effort as of 2026 to make crypsetup and libdevmapper (the
thread-unsafe dependency) thread-safe. Once this is merged and released, we will
be able to remove this workaround for newer versions. However on older versions,
this restriction will remain in place.

### Building

The libcryptsetup bindings require some dependencies outside of cargo to build
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