ptfs: refine the way to support O_DIRECT

cloud-hypervisor / fuse-backend-rs

Rust crate for implementing FUSE backends

Apache License 2.0

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ptfs: refine the way to support O_DIRECT #176

Open jiangliu opened 10 months ago

jiangliu commented 10 months ago

We have special support of the O_DIRECT flag, but the implementation has race conditions due to Time To Check & Time To Use issues. So refine the implementation by using a RwLock.