Re: [PATCH v4] fs/proc: Expose RSEQ configuration

On Tue, Feb 02, 2021 at 06:37:09PM +0100, Piotr Figiel wrote: > For userspace checkpoint and restore (C/R) some way of getting process > state containing RSEQ configuration is needed. [...] > To achieve above goals expose the RSEQ ABI address and the signature > value with the new procfs file "/p

[PATCH v4] fs/proc: Expose RSEQ configuration

For userspace checkpoint and restore (C/R) some way of getting process state containing RSEQ configuration is needed. There are two ways this information is going to be used: - to re-enable RSEQ for threads which had it enabled before C/R - to detect if a thread was in a critical section during